Datei im Netzwerk der BAM verfügbar ("Closed Access")
Filtern
Erscheinungsjahr
- 2018 (218) (entfernen)
Dokumenttyp
- Beitrag zu einem Tagungsband (218) (entfernen)
Schlagworte
- Niobium carbide (8)
- Concrete (7)
- Wear (7)
- Corrosion (6)
- Friction (6)
- Hydrogen (5)
- Composite (4)
- Creep (4)
- Degradation (4)
- Fatigue (4)
- Heat treatment (4)
- Korrosion (4)
- LIBS (4)
- NbC (4)
- Non-destructive testing (4)
- Residual stress (4)
- Ultrasound (4)
- ATEX (3)
- Additive manufacturing (3)
- Aluminium (3)
- Cement (3)
- Egress (3)
- Evacuation (3)
- Explosionsschutz (3)
- Fe3Al (3)
- KorroPad (3)
- Long-term behavior (3)
- Metal seal (3)
- Rail (3)
- Richtlinie 2014/34/EU (3)
- Steel (3)
- Tribology (3)
- Active fibers (2)
- Additive Manufacturing (2)
- Adiabatic calorimeter (2)
- Austenitic stainless steel (2)
- Bewitterung (2)
- CCUS (2)
- CONSENS (2)
- Carbon fiber reinforced polymers (2)
- Carbon steels (2)
- Cement hydration (2)
- Chlorid (2)
- Chloride (2)
- Coarsening (2)
- Coating (2)
- Cobalt (2)
- Composite pressure vessel (2)
- Composite structures (2)
- Copolymer (2)
- Corrosion testing (2)
- Coulometric sensors (2)
- Cyclic loading (2)
- Damage (2)
- Damage detection system (2)
- EPR (2)
- Eddy current (2)
- Engineering data (2)
- Finite element method (2)
- Geothermal (2)
- Hardness (2)
- Hochspannung (2)
- Human behaviour (2)
- Inconel 686 (2)
- Konformitätsbewertung (2)
- Korrosionsbeständigkeit (2)
- LCF (2)
- LD-Schlacke (2)
- LNG (2)
- Leak detection (2)
- Machining (2)
- Martensitic steel (2)
- Mechanical properties (2)
- Mechanical testing (2)
- Microstructure (2)
- Modal analysis (2)
- Moisture (2)
- Nichtrostender Stahl (2)
- Numerical simulation (2)
- PEEK (2)
- Passivschicht (2)
- Pedestrians with disabilities (2)
- Phase change material (2)
- Polyaniline (2)
- Potentialfeldmessung (2)
- Pressure vessel (2)
- Prozessanalytik (2)
- Radioactive material (2)
- Railways (2)
- Rare earth nanoparticles (2)
- Recycling (2)
- Rheologie (2)
- S-phase (2)
- SHM (2)
- Salt eutectics (2)
- Selective laser melting (2)
- Semi-finishing (2)
- Serial sectioning (2)
- Sintering (2)
- Solidification cracking (2)
- Spent nuclear fuel (2)
- Stainless steel (2)
- Structural Health Monitoring (2)
- Superaustenite steel (2)
- Supercritical/dense phase CO2 (2)
- Temperature (2)
- Thermal energy storage (2)
- Thermography (2)
- Trace humidity measurement (2)
- Transport packages (2)
- Turning (2)
- UHPC (2)
- Ultrasonic testing (2)
- Umweltsimulation (2)
- Upconversion (2)
- Value of information (2)
- Welding (2)
- Wood (2)
- Wärmebehandlung (2)
- 3 DoF (1)
- 316L (1)
- 9%Ni steel, (1)
- AISI 304L (1)
- ASET (1)
- ASR (1)
- Abrasion (1)
- Accelerometers (1)
- Acid Dew and Fog (1)
- Acoustic emission (1)
- Acoustic emission testing (1)
- Acoustic emissions (AE) (1)
- Additive Fertigung (1)
- Adjustment calculation (1)
- Aerial robot (1)
- Ageing (1)
- Aggressive environment (1)
- Air exchange rate (1)
- Akaziengummi (1)
- Alit (1)
- Alkali-Kieselsäure-Reaktion (1)
- Alkali-Silica Reaction (1)
- Alkali-activated slag mortar (1)
- All-optical switching (1)
- Alloy 2618A (1)
- Alloy 2818A (1)
- Alternative Antriebe (1)
- Alternative Kraftstoffe (1)
- Alumina (1)
- Aluminum (1)
- Amplitude-charge weight laws (1)
- Amplitude-distance laws (1)
- Analysis (1)
- Analysis of wormholes (1)
- Anisotropy (1)
- Antimony (1)
- Aperture focusing (1)
- Assessment (1)
- Asymmetric coupler (1)
- Atmospheric pressure plasma (1)
- Auswirkungsbetrachtung (1)
- Autoclaved aerated concrete (1)
- Baltic Sea (1)
- Bauchemie (1)
- Bauteilmonitoring (1)
- Beanspruchung auf Zug und Druck (1)
- Behälterversagen (1)
- Belebtschlamm (1)
- Bending tests on pipe segments (1)
- Beton (1)
- Betonfahrbahndecke (1)
- Betonstahl (1)
- Betriebspunktoptimierung (1)
- Bewehrungen aus Kunststoff (1)
- Big Data (1)
- Binder (1)
- Biofilms (1)
- Biofuels (1)
- Bluetooth (1)
- Braking in a turn (1)
- Busses (1)
- C3A hydration (1)
- CDW processing (1)
- CFD (1)
- CFD-model (1)
- CNG (1)
- CO2 assisted impregnation (1)
- CODE AGE (1)
- Carbonate matrix stimulation (1)
- Carbonitride (1)
- Cargo (1)
- Cemented carbide (1)
- Centrifugal compressor wheel (1)
- Cermet (1)
- Certification (1)
- Chalcopyrite (1)
- Chloride migration coefficient (1)
- Cladding-doped fibers (1)
- Classification (1)
- Co (1)
- Coastal protection (1)
- Commidities (1)
- Compaction grouting (1)
- Comparative assessment (1)
- Comparative simulations (1)
- Compressive cyclic loading (1)
- Compressive strength (1)
- Computed radiography (CR) (1)
- Computed tompgraphy (1)
- Computer simulation (1)
- Condition assesment (1)
- Conductor (1)
- Conformity Assessment (1)
- Construction products (1)
- Consumer article (1)
- Containment (1)
- Continnum damage model (1)
- Continous monitoring (1)
- Control (1)
- Conventional Ni-based austenitic welding electrode (1)
- Cooking fume extractor (1)
- Coolant-free (1)
- Corrosion resistance (1)
- Coulometric humidity sensor (1)
- Coupled generalized nonlinear Schrödinger equation (1)
- Crack (1)
- Crack growth (1)
- Crack initiation (1)
- Cracks (1)
- Crater wear (1)
- Creep-resistant steel (1)
- Crevice corrosion (1)
- Critical strain (1)
- Cryogenic steel (1)
- Cryogenic temperature (1)
- Crystal plasticity (1)
- Cu(In,Ga)Se2 (1)
- Cutting tool (1)
- Cutting tools (1)
- Cybersecurity (1)
- DAS (1)
- DEA (1)
- DET (1)
- DLC (1)
- DNA (1)
- DUCON® (1)
- Damage detection and localisation (1)
- Dark-field transmission electron microscopy (DFTEM) (1)
- Data Fusion (1)
- Data based decision making (1)
- Data fusion (1)
- Datenanalyse (1)
- Datenfusion (1)
- Datenkonzepte (1)
- Datenmanagement (1)
- Dauerhafigkeit (1)
- Deckschichtbildung (1)
- Deconvolution (1)
- Deponie (1)
- Deponietechnik (1)
- Deterioration model (1)
- Dichtungskontrollsysteme (1)
- Dielectric materials (1)
- Digital Detector Array (DDA) (1)
- Digital Image Correlation (DIC) (1)
- Direct detection (1)
- Disinfection (1)
- Dissimilar welds (1)
- Distributed acoustic sensing (1)
- Distributed fibre optic sensors (1)
- Distributed strain sensor (1)
- Dosimetry (1)
- Drop (1)
- Drop test (1)
- Drop testing (1)
- Droplet corrosion (1)
- Druckbehälter (1)
- Dual energy imaging (1)
- Dual purpose cask (1)
- Dual-core photonic crystal fiber (1)
- Ductility (1)
- Dye (1)
- Dyes (1)
- E-modulus (1)
- EBSD (1)
- Early hydration (1)
- Echtzeitoptimierungsverfahren (1)
- Ecodesign (1)
- Edge effects (1)
- Eigenspannungen (1)
- Eindringmodul (1)
- Einzelfaserdurchzugsversuch (1)
- Elastische Gebäudelagerung (1)
- Electron irradiation (1)
- Electron irradiation of DNA (1)
- Elektrolyseverfahren (1)
- Elektromagnetische Schmelzbadunterstützung (1)
- Elektronische Nase (1)
- Embedded system (1)
- Emission chamber (1)
- Emission reference material (1)
- Encapsulation (1)
- Energy (1)
- Energy discrimination (1)
- Energy label (1)
- Energy saving (1)
- Energy saving potentials (1)
- Environmental changes (1)
- Environmental evaluation (1)
- Ettringit (1)
- European standard (1)
- Evakuierung (1)
- Explosion protection (1)
- Explosion-induced ground vibrations (1)
- Explosionsdruckentlastung (1)
- Explosionsfeste Bauweise (1)
- FE-model (1)
- FEM (1)
- FEM model (1)
- FTIR spectra (1)
- Fahrzeugbrand (1)
- Faser-Bragg Gitter (1)
- Fasermodifikation (1)
- Fasersensorik (1)
- Fault detection (1)
- Femtosecond laser ablation (1)
- Ferritic welding electrode (1)
- Ferritic-martensitic steels (1)
- Ferromagnetischer Stahl (1)
- Feuerwiderstand (1)
- Fiber optic sensing (1)
- Fiber optics sensors (1)
- Fibre break (1)
- Fibre optic acoustic sensing (1)
- Field tests (1)
- Fire (1)
- Fire safety concept (1)
- Fire test (1)
- First Principles (1)
- Flammable gas (1)
- Flammable liquid (1)
- Flammendurchschlagsicherungen (1)
- Flank (1)
- Flexural testing (1)
- Fließmittel (1)
- Fluid transport (1)
- Fluorescent optical fibers (1)
- Fluorescent sensor (1)
- Four-point bending test (1)
- Fracture toughness (1)
- Freileitung (1)
- Fs-laser patterning (1)
- GMR (1)
- Gas discharges (1)
- Gas pressure influence (1)
- Gas sensing (1)
- Gas tomography (1)
- Geant4 (1)
- Gel-type electrolytes (1)
- Gelartige Elektrolyte (1)
- Geokunststoffe (1)
- Geosynthetics (1)
- Geotextiles (1)
- Grain growth (1)
- Grenzflächenaktive Verbindung (1)
- Ground penetrating radar (1)
- Grouted Connection (1)
- Gypsum (1)
- HDPE geomembrane (1)
- HTLS (1)
- Haftfestigkeit (1)
- Half-cell potential mapping (1)
- Hammer impact (1)
- Hard metal (1)
- Hard tungsten (1)
- Hard-turning (1)
- Hardmetal (1)
- Hartstoffphasen (1)
- Heterogenität (1)
- High - temperature corrosion (1)
- High ductility (1)
- High impact shock application (1)
- High temperature corrosion (1)
- High-energy X-ray CT (1)
- High-strength concrete (1)
- High-strength steel (1)
- Hochfester Feinkornbaustahl (1)
- Hopkinson bar (1)
- Hot cell testing (1)
- Hot steam (1)
- Hybrid-laser-arc welding (1)
- Hydration (1)
- Hydrogen concentration (1)
- Hydrogranat (1)
- Hydrothermale Behandlung (1)
- Hydroxyellestadit (1)
- Hydroxyl radicals (1)
- Hydroxylellestadite (1)
- Härteprüfung (1)
- Härtevergleichsplatten (1)
- IAEA (1)
- IETF (1)
- IN718 (1)
- ISO (1)
- IT-Security (1)
- Image evaluation (1)
- Image reconstruction (1)
- Imaging (1)
- Imaging condition (1)
- Impact (1)
- Impact limiter (1)
- Impurities (1)
- In situ strain (1)
- Indirect Hard Modelling (1)
- Industrial X-ray imaging (1)
- Infrarotspektroskopie (1)
- Infrastructure (1)
- Injection (1)
- Inserts (1)
- Inspection (1)
- Instandhaltung (1)
- Instrumentierte Eindringprüfung (1)
- Integral range (1)
- Interaction (1)
- Interface (1)
- Interrupted milling (1)
- Intumescent fire protection coating (1)
- Ionic liquids. (1)
- Ionische Flüssigkeiten (1)
- Iron-based alloys (1)
- Kaltriss (1)
- Korrosionsprüfung (1)
- Korrosionsschutz (1)
- Kraftabhängige Funktion (1)
- Kriechen (1)
- Kristalline CSH-Phase (1)
- Kunststoffschweißen (1)
- Künstliche Bewitterung (1)
- LET (1)
- LIPS (1)
- LPG (1)
- LTT (1)
- Laminography (1)
- Landfill liner (1)
- Laser Metal Deposition (1)
- Laser applications (1)
- Laser beam welding (1)
- Laser welding (1)
- Laser- und Lichtbogenenergie (1)
- Laser-Pulver-Auftragschweißen (1)
- Laser-beam welding, (1)
- Laser-induced breakdown spectroscopy (1)
- Laser-induced forward transfer (1)
- Laser-induced periodic surface structures (LIPSS) (1)
- Laserimplantation (1)
- Laserstrahlschweißen (1)
- Lastanschlag (1)
- Lateral load transfer ratio (1)
- Layer formation (1)
- Leaching (1)
- Leakage rate (1)
- Lebensdauer (1)
- Leichtbeton (1)
- Leichte Gesteinskörnungen (1)
- Length of puncture bar (1)
- Lichtbogenofen (1)
- Lichtbogensensorik (1)
- Lichtmikroskopie (1)
- Lightweight aggregates (LWA) (1)
- Lightweight concrete (1)
- Lightweight design (1)
- Linear energy transfer (1)
- Liquid cargoes (1)
- Liquid nitrogen (1)
- Loading factor (1)
- Lochkorrosion (1)
- Low energy electrons (1)
- Lowlevel and midlevel radioactive waste (1)
- Lubricated sliding (1)
- Luminescence (1)
- Lysimeter (1)
- MAG Prozesssteuerung (1)
- MAG-Schweißen (1)
- MOISHUM (1)
- MRFA (1)
- MSG-Engspaltschweißen (1)
- MSWI Bottom Ash (1)
- Machinability (1)
- Magnesium (1)
- Magneto-optischer Sensor (1)
- Magnetostriktive Beschichtung (1)
- Maneuvers (1)
- Maritime Atmosphäre (1)
- Maritime atmosphere (1)
- Market surveillance (1)
- Martensitic stainless steels (1)
- Martensitischer nichtrostender Stahl (1)
- Maschinennachgiebigkeit (1)
- Masonry rubble (1)
- Material Point Method (MPM) (1)
- Matrix Array (1)
- Mauerwerkbruch (1)
- Measurement (1)
- Mechanical assessment (1)
- Mehr-Proben-Prüfung (1)
- Metal (1)
- Metal matrix composite (1)
- Metals hygienic assessment release (1)
- Metamodel (1)
- Methodology (1)
- Micro solar cell (1)
- Micro-reinforcement (1)
- Microdosimetry (1)
- Microstructure evolution (1)
- Mixed formulation (1)
- Mobile Robot Olfaction (1)
- Mobile elements (1)
- Mobiles LIBS (1)
- Modalanalyse (1)
- Modifier-Adaptation (1)
- Monitoring (1)
- Mortar (1)
- Movement (1)
- Multigassensoren (1)
- Multiscale model (1)
- Nano aerial robot (1)
- Nasschemie (1)
- Neutron diffraction (1)
- Neutron imaging (1)
- Ni-Resist (1)
- Nichtelektrische Geräte (1)
- Nickel (1)
- Nickel based coatings (1)
- Niobium (1)
- Non-destuctive corrosion testing of concrete (1)
- Nondestructive testing (1)
- Nuclear power plants (1)
- Numerical modeling (1)
- Numerical modelling (1)
- Numerical simulations (1)
- OTDR (1)
- Oberflächenfunktionalisierung (1)
- Oberflächenmessung (1)
- Offshore (1)
- Offshore pile foundation (1)
- Oil (1)
- On-line analysis (1)
- Online NMR Spectroscopy (1)
- Online-NMR-Spektroskopie (1)
- Optical Spectroscopy (1)
- Optical backscatter reflectometry (1)
- Optical fibre (1)
- Optical measurement (1)
- Optical spectroscopie (1)
- Optical time domain reflectometry (1)
- Oxide scale (1)
- PMMA (1)
- PTFE composites (1)
- PVD hard coating (1)
- Package safety (1)
- Parkbauten (1)
- Partial Least Squares Regression (1)
- Passive film (1)
- Passive sensor interface (1)
- Pavement (1)
- Penalty Parameter (1)
- Pendulum analogy (1)
- Permeation barriers (1)
- Phased Array (1)
- Photogrammetric analysis (1)
- Photogrammetry (1)
- Photon counting (1)
- Photovoltaic (1)
- Piezoelectric pressure-gauge (1)
- Piezoresistive accelerometer (1)
- Pipeline monitoring (1)
- Plasma speaker (1)
- Plastic optical fibers (1)
- Plume (1)
- Polycarboxylate ether (1)
- Polycarboxylate ether (PCE) (1)
- Polycarboxylatether (1)
- Polyethylene grades (1)
- Polymer composites (1)
- Polymere (1)
- Polymerkomposite (1)
- Polysaccharide (1)
- Polzmethyl methacrylate (1)
- Potential effect (1)
- Potentials (1)
- Pre-movement (1)
- Prediction of explosion induced ground and building vibration (1)
- Pressure vessels (1)
- Process Control (1)
- Processing (1)
- Production technology (1)
- Profilvermessung (1)
- Properties (1)
- Prototyp (1)
- Prozess-Steuerung (1)
- Prozessindustrie (1)
- Prüfung (1)
- Pulveraktivkohle (1)
- Puncture bar test (1)
- Pyrometallurgy (1)
- Quality management system (1)
- Quantum Mechanics (1)
- Quasi-static and dynamic tests (1)
- Quenching and partitioning (1)
- RFID (1)
- RSET (1)
- Radiation damage (1)
- Rail endurance (1)
- Range hood (1)
- Rayleigh scattering (1)
- Reaction-to-fire (1)
- Reactive fire protection system (1)
- Reaktive Brandschutzsysteme (1)
- Real-scale fire test (1)
- Rebar (1)
- Rechenmodelle (1)
- Recycling aggregates (1)
- Recyclinggranulat (1)
- Reduced volume method (1)
- Regulations (1)
- Rehabilitation (1)
- Repair (1)
- Representative volume element (1)
- Residual evaluation (1)
- Residual stresses (1)
- Retention (1)
- Reverse time migration (1)
- Rheology (1)
- Rhodamine B (1)
- Richtlinie (1)
- Rig (1)
- Risk (1)
- Risse (1)
- Rissform (1)
- Road (1)
- Road tankers (1)
- Roadways (1)
- Rubber (1)
- Röntgen-3D-Computertomographie (1)
- SMAW (1)
- SPS (1)
- Safety assessment (1)
- Safety characteristic (1)
- Salinization (1)
- Scale-bridging (1)
- Scaled Boundary Finite Element Method (1)
- Scatter imaging (1)
- Schadstoffaustrag (1)
- Schutzsysteme (1)
- Schweißen (1)
- Schwingfestigkeit (1)
- Schädigung (1)
- Seal performance (1)
- Securement (1)
- Selbstkalibrierung (1)
- Sensibilisierung (1)
- Sensor arrays (1)
- Sensor coating (1)
- Sensorbeschichtung (1)
- Sensorentwicklung (1)
- Sensorik (1)
- Shearing (1)
- Shock absorber (1)
- Shock-structure-interaction (1)
- Shrinkage (1)
- Si isotopes (1)
- SiO 2 (1)
- SiO2 (1)
- Signal (1)
- Simulation of concrete (1)
- Size effect (1)
- Slenderness effect (1)
- Sloshing cargo (1)
- Sloshing cargoes (1)
- Smart industry (4.0) (1)
- Smoldering (1)
- Soft glass (1)
- Soil properties (1)
- Soil-pile interaction (1)
- Solubility (1)
- Solution doping (1)
- Sparse Array (1)
- Spatial resolution (1)
- Spent fuel (1)
- Spherical parallel manipulator (1)
- Sphärische Indenter (1)
- Spurenfeuchtemessung (1)
- Stahlbauteile (1)
- Stahlwerksschlacke (1)
- Stainless Steel (1)
- Standards (1)
- Statistical tests (1)
- Statistische Versuchsplanung (1)
- Steel pipe (1)
- Stereo photogrammetry (1)
- Strain rate (1)
- Strength (1)
- Stress corrosion cracking (1)
- Structural analysis (1)
- Structural health monitoring (SHM) (1)
- Subspace-based method (1)
- Subsurface defects (1)
- Sulphate (1)
- Superplasticizer (1)
- Supervised machine learning (1)
- Surface dielectric barrier discharge (1)
- Surface functionalization (1)
- Swarm (1)
- Swept wavelength interferometry (SWI) (1)
- Synchrotron X-ray diffraction (1)
- TDLAS (1)
- THz Spectroscopy (1)
- THz radiation (1)
- TMF (1)
- Tangential radiography (1)
- Tantalum (1)
- Tausalz (1)
- Temperatur (1)
- Temperature behavior (1)
- Temperature characteristics (1)
- Tensile strength (1)
- Tension rod system (1)
- Terahertz synthetic aperture (1)
- Test (1)
- Test Tailoring (1)
- Testing (1)
- Thermal Test (1)
- Thermal properties of GRP (1)
- Thermal testing (1)
- ThermoCalc (1)
- Thermoanalyse (1)
- Thermografie (1)
- Thermogravimetrie (1)
- Thermohydraulic (1)
- Thermomechanics (1)
- Ti-6Al-4V (1)
- Titanium nitride (1)
- ToF-SIMS (1)
- Tobermorit (1)
- Tobermorite (1)
- Ton (1)
- Toughness (1)
- Traffic (1)
- Train (1)
- Trains (1)
- Transformation induced plasticity (1)
- Transmission electron microscopy (1)
- Transport externalities (1)
- Transport of radioactive materials (1)
- Transportation (1)
- Tricalciumsilikat (1)
- Triumfetta Pendrata A. Rich (1)
- Trockenreibung (1)
- Trucking (1)
- Trunnion design (1)
- Tungsten carbide (1)
- Type-B Package (1)
- Ultra-high performance concrete (1)
- Ultrafast soliton fission (1)
- Ultrahigh-performance concrete (1)
- Uncertainty (1)
- Uncertainty in reference (1)
- Under cyclic loading (1)
- Unimpeded walking speed (1)
- Unsicherheiten (1)
- Upscaling (1)
- Uranhexaflourid (1)
- VCSEL (1)
- VOC (1)
- Valve (1)
- Vehicle-Track (1)
- Vereinfachtes Verfahren (1)
- Versalzung (1)
- Verschleißbeständigkeit (1)
- Verteilte Fasersensorik (1)
- Verzinkt (1)
- Verzögerungswerte (1)
- Vessels (1)
- Vibration measurements (1)
- Virtual experiments (1)
- Volatile organic compounds (1)
- WC (1)
- Wall thickness measurement (1)
- Water activity (1)
- Water quality (1)
- Weld pool geometry (1)
- Wetting (1)
- Windenergie (1)
- Windkanal (1)
- Wireless Sensor Networks (1)
- Wireless mobile sensor device (1)
- X-ray computed tomography (1)
- X-ray laminography (1)
- X-ray photoelectron spectroscopy (1)
- X-ray radiography (1)
- XL-CT (1)
- XRD (1)
- Zement (1)
- Zementgebundene Baustoffe (1)
- Zementklinker (1)
- Zementleim (1)
- Zentrifugentechnologie (1)
- ZfP (1)
- Zinc coatings (1)
- Zinkdeckschichten (1)
- Zonation (1)
- Zulassung (1)
- Zusatzmittel (1)
- Zündgefahrenbewertung (1)
- carrier gas hot extraction (1)
- laser cladding (1)
- temperature (1)
Organisationseinheit der BAM
- 7 Bauwerkssicherheit (60)
- 8 Zerstörungsfreie Prüfung (52)
- 3 Gefahrgutumschließungen; Energiespeicher (37)
- 9 Komponentensicherheit (37)
- 5 Werkstofftechnik (22)
- 8.1 Sensorik, mess- und prüftechnische Verfahren (20)
- 7.6 Korrosion und Korrosionsschutz (17)
- 9.5 Tribologie und Verschleißschutz (17)
- 3.2 Gefahrguttanks und Unfallmechanik (13)
- 4 Material und Umwelt (13)
Monitoring chemical reactions is the key to chemical process control. Today, mainly optical online methods are applied, which require excessive calibration effort. NMR spectroscopy has a high potential for direct loop process control while exhibiting short set-up times. Compact NMR instruments make NMR spectroscopy accessible in industrial and harsh environ¬ments for advanced process monitoring and control, as demonstrated within the European Union’s Horizon 2020 project CONSENS.
We present a range of approaches for the automated spectra analysis moving from conventional multivariate statistical approach, (i.e., Partial Least Squares Regression) to physically motivated spectral models (i.e., Indirect Hard Modelling and Quantum Mechanical calculations). By using the benefits of traditional qNMR experiments data analysis models can meet the demands of the PAT community (Process Analytical Technology) regarding low calibration effort/calibration free methods, fast adaptions for new reactants or derivatives and robust automation schemes.
In CCS environment (carbon capture and storage) pipes are loaded statically and/or cyclically and at the same time exposed constantly to the highly corrosive hot thermal water. Experimental procedures such as ambient pressure immersions tests, in-situ corrosion fatigue experiments using a flexibly designed corrosion chamber at ambient pressure and a specially designed corrosion chamber at high pressure. Experimental set-ups for push/pull and rotation bending load are introduced. The corrosion behavior and lifetime reduction of high alloyed steels (X46Cr13, 1.4043), (X5CrNiCuNb16-4, 1.4542) and (X2CrNiMoN22-5-3, 1.4462) is demonstrated (T=60 °C, geothermal brine: Stuttgart Aquifer flow rate: 9 l/h, CO2 ).
The commercial usage of latent thermal energy storages primarily depends on the development of a suitable phase change material (PCM). For industrial high temperature applications above 400 °C multicomponent chloride eutectics are promising and therefore discussed seriously. The profound thermodynamic investigation of such eutectics requires a much greater amount of specimen material than conventional calorimeter can handle. Therefore, a special adiabatic calorimeter was developed and designed. With a specimen mass of > 100 g the typical thermodynamic measurements with a commercial calorimeter can be extended by cycle stability measurements, which are often decisive for practical application of PCM. Furthermore, by implementing corrosion specimens inside the calorimeter high temperature corrosion experiments according to ISO 21608 can be performed inside the calorimeter. Adiabatic measuring conditions can be provided by using two separate heating systems. Therefore, the outer “protective system” follows the temperature curve of the inner “measuring system” minimizing the temperature difference between the heating systems and simultaneously preventing heat losses from the measuring systems.
The vulnerability of low-quality concrete of some bridges to ageing and deterioration while they are exposed to environmental conditions during their service life, influence of growing population and climate changes, is a well-known effect and requires survey. For survey, the development of a low cost, cost-efficient sensor network to be embedded for continuous or attached to the surface for periodic monitoring is essential.
Changing ground water conditions, flood or even leakage in fresh or disposal of waste water can lead to in-creased moisture content in building materials and structural elements as walls or floors. Moisture allows the transport of other adverse chemicals that might reduce the durability of structures. The paper presents a feasibility study about the capability of microwave modules as bluetooth® or ZigBee with frequency range at 2,4 GHz to create advanced Wireless Sensor Networks (WSN) for estimation and visualization of moisture distribution in infrastructure assets. It was found that the value of the received signal strength indication (RSSI) depends on the moisture content and can be the basis for the moisture distribution inside a massive structure.
The microwave modules may be used to compose networks outside and inside of building materials or structural elements. The higher the number of connections between BLE modules, the more precise and the more distant information can be obtained from the network. Mesh networking was applied to increase the quantitative information.
Gegenstand der vorzustellenden Arbeiten ist die Prüfung der Umwelt-beständigkeit und -verträglichkeit von Materialien und Produkten hinsichtlich der Emission von potenziellen Schadstoffen in die Umwelt. Hierzu werden chemisch-physikalische Einflüsse (Bewitterung) und mikrobielle Beanspruchungen an Modellmaterialien evaluiert. So werden die Freisetzungsraten von Schadstoffen in Abhängigkeit der Beanspruchung beschrieben. Als Modellmaterialien kommen die Polymere Polystyrol (PS) und Polypropylen (PP) zum Einsatz. Synergistische Effekte der Bewitterungsparameter und der mikrobiologischen Beanspruchung sollen dabei ebenso betrachtet werden, wie die gezielte Alterung. Auch findet eine Beschreibung des Verhaltens der ausgetragenen Schadstoffe in den Umweltkompartimenten Boden oder Wasser statt. Hier sind mit Hilfe der zu entwickelnden Screening- und non-Target-Analyseverfahren die Transformation und der Metabolismus durch Mikroorganismen zu beschreiben. Aus den Ergebnissen sollen Korrelationen zwischen den künstlichen Alterungsverfahren und realen Szenarien abgeleitet werden.
The work presents the microstructure, chemical composition and mechanical properties of Inconel 686 coatings after high - temperature corrosion in environment of aggressive gases and ashes. To produce the Ni - based coatings the QS Nd:YAG laser cladding process was carried out. As the substrate used 13CrMo4-5 boilers plate steel. Ni - base alloys characterize the excellent high-temperature corrosion resistance, good strength and ability to work in aggressive environments. Formed clad were characterized by high quality of metallurgical bonding with the substrate material and sufficiently low amount of the iron close to the clad layer surface. After corrosion experiment the oxide scale on the substrate and clad created. The scale on 13CrMo4-5 steel had 70 μm thickness while the scale of the clad had less than 10 μm. The microstructure, chemical composition of the obtained clad and scales were investigated by scanning electron microscope (SEM) and electron probe microanalyzer (EPMA) equipped with the EDS detectors.
Organic/inorganic mixtures were prepared from ordinary Portland cement (OPC), water (w/c 0.22), a fluorescent dye in aqueous solution (stable at alkaline pH; BAM-I), and two different comb shape polycarboxylates (PCEs), i.e., high charge (PCE-HC) and low charge (PCE-LC), respectively. Rheological and calorimetric measurements were performed prior to optical studies in order to select PCE concentrations. Absorption and fluorescence spectroscopy of the system OPC + BAM-I (CBAM-I) revealed maxima of dye BAM-I located at 645 nm and 663 nm, respectively. In presence of PCE-HC and PCE-LC, these mixtures displayed a small red shift in reflectance and a faster decrease in intensity compared to studies with CBAM-I; however, only slight differences were observed between the different PCEs. With time, all systems exhibited a decrease in intensity of BAM-I in absorption/reflectance and emission. This could be caused by dye adsorption and possibly decomposition when in contact with cement particles or hydration products.
Defining a Reduced Volume Zone for the Simulation of Burst Test on a Composite Pressure Vessels
(2018)
The random nature of fibre break in composite materials has to be modelled in all part of the structure as it may contain millions of fibres. The reduced volume method was introduced to determine a smaller zone where we could characterise the strength based on the accumulation of fibre break, hence increasing the computation time
The developed model has certain limitations of the element size to be used in the simulation to characterise the strength of composite materials. A reduced volume method is proposed in order to reduce the number of degree of freedom of the finite element simulation.This study has revealed certain configuration to be followed to speed up the computation time.
A continuum damage model for concrete is developed with a focus on fatigue under compressive stresses. This includes the possibility to model stress redistributions and capture size effects. In contrast to cycle based approaches, where damage is accumulated based on the number of full stress cycles, a strain based approach is developed that can capture cyclic degradation under variable loading cycles including different amplitudes and loading frequencies. The model is designed to represent failure under static loading as a particular case of fatigue failure after a single loading cycle. As a consequence, most of the material parameters can be deduced from statictests. Only a limit set of additional constitutive parameters is required to accurately describe the evolution under fatigue loading. Another advantage of the proposed model is the possibility to directly incorporate other multi-physics effects such as creep and shrinkage or thermal loading on the constitutive level. A multiscale approach in time is presented to enable structural computations of fatigue failure with a reduced computational effort. The damage rate within the short time scale corresponding to a single cycle is computed based on a Fourier based approach. This evolution equation is then solved on the long time scale using different implicit and explicit time integration schemes. Their performance and some limitations for specific loading regimes is discussed.