45657
2018
eng
lecture
0
--
--
--
Practical applications of recent BAM-research results of NDT and monitoring in civil engineering
Nondestructive testing and monitoring was of mayor interest in BAM-research related to the survey of civil engineering structures during the last two decades. Three case studies about research projects carried out at BAM were presented. All three projects focussed on the survey of parameters and safety related tasks in bridge engineering and inspection. First, the monitoring of the Berlin main station was presented with focus on the sensors developed specifically for this project. The second case study presented and application of guided ultrasonic waves to CFRP-strengthened bridges. The method was sucsessully applied to two of four different strengthening measures carried out min. 10 years ago. The last project presented the feasibility study of a network consisting of simple Bluetooth modules to survey changes in the moisture content in sand and massive concrete.
Workshop
University of New South Wales, Sydney, Australia
17.07.2018
17.07.2018
0
Rosemarie Helmerich
eng
uncontrolled
Monitoring
eng
uncontrolled
Wireless sensor network (WSN),
eng
uncontrolled
NDT
eng
uncontrolled
Guided waves
eng
uncontrolled
Bluetooth modules
eng
uncontrolled
Inspection
eng
uncontrolled
Civil infrastructure
Ingenieurbau
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Infrastruktur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
47001
2018
eng
11
12
conferenceobject
Editura Printech
Bucarest, Romania
0
--
--
--
Impact on a micro-reinforced UHPC: Experimental studies versus numerical modeling
Within the presented research project, experimental and numerical investigations were performed to develop a thin-shelled, modular, mobile element system made of a micro-reinforced ultra-high-performance ductile concrete (DUCON®). Material parameters were experimentally determined to adapt the material model within the numerical analysis applying the Drucker-Prager relationship. Afterwards, for validation of the numerical models, quasi-static and high-velocity impact tests were performed on plate-like structures. Finally, a suitable geometry of transportable barrier elements will be designed, which provides a maximum of resistance against impact by a minimum of weight and a maximum of mobility.
35th Danubia-Adria Symposium on Advances in Experimental Mechanics, Extended Abstracts
978-606-23-0874-2
https://www.das2018.ro/
35th Danubia-Adria Symposium on Advances in Experimental Mechanics
Sinaia, Romania
25.09.2018
28. 09.2018
Astrid Kowitz
Cheng-Chieh Wu
Falk Hille
Rosemarie Helmerich
Daniel Kadoke
Klaus-Peter Gründer
S. Hauser
H. Schwarzinger
eng
uncontrolled
E-modulus
eng
uncontrolled
Impact
eng
uncontrolled
UHPC
eng
uncontrolled
DUCON®
eng
uncontrolled
Quasi-static and dynamic tests
eng
uncontrolled
Micro-reinforcement
eng
uncontrolled
Ductility
eng
uncontrolled
Mobile elements
eng
uncontrolled
Numerical modeling
eng
uncontrolled
Stereo photogrammetry
eng
uncontrolled
Compressive strength
Ingenieurbau
7 Bauwerkssicherheit
7.2 Ingenieurbau
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Infrastruktur
Security
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
47171
2018
eng
26469
26792
Issue 13, Part 2
5
article
Elsevier Ltd.
Radarweg 29, 1043 NX Amsterdam, The Netherlands
0
--
--
--
Experimental modeling approach for determining the moisture damping exponent of a bluetooth low energy signal in moist building material
The presented development of a damping model is a research component of an experimental feasibility study about moisture in building materials measured with Bluetooth® Low Energy (BLE) signals. This study may be part of a structural health- and long-term monitoring aiming at early damage detection in the built infrastructure and is increasingly focusing on wireless sensor network technology. It is investigated, how the Received Signal Strength Indicator (RSSI) of a BLE signal, transmitted from the BLE-module embedded in building materials with changing moisture content is damped. The aim of the modelling is the derivation of a damping equation for the formal model to determine the moisture damping exponent to finding a correlation.
MaterialsToday: Proceedings
10.1016/j.matpr.2018.08.124
2214-7853
34th Danubia Adria Symposium on Advances in Experimental Mechanics
Trieste, Italy
19.09.2017
22.09.2017
false
true
Laura Moldenhauer
Rosemarie Helmerich
E. Köppe
H.-J. Wittmann
eng
uncontrolled
BLE Bluetooth low energy
eng
uncontrolled
Sensor network
eng
uncontrolled
RSSI Received Signal Strength Indicator
eng
uncontrolled
Structural Health Monitoring
eng
uncontrolled
Moisture measurements
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Chemie und Prozesstechnik
Chemische Charakterisierung und Spurenanalytik
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
46871
2018
eng
61
71
1.
bookpart
China Communication Press Co., Ltd.
Fuzhou, China
Fuzhou University
0
--
--
--
Engineering Education in Europe
The book chapter first analyses the history of higher education in Europe. Second step describes the current Bologna process. Finally, the rule of the Bundesanstalt für Materialforschung und -Prüfung (BAM) in supporting PhD-students during their research and preparation of theire theses in cooperation with Universities is described
Glimpses of civil engineering education in the world
978-7-114-14938-2
Rosemarie Helmerich
eng
uncontrolled
History of education
eng
uncontrolled
Bologna process
eng
uncontrolled
BAM
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Chemie und Prozesstechnik
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
46872
2018
eng
lecture
0
--
--
--
Feasibility study about monitoring moisture inside massive concrete
Current measurement methods for dertermination of moisture analyse near-surface moisture distribution. During an externally funded research project, microwaves in the Bluetooth(R) frequency band width were utilized for Setting-up a module network. Without additional sensors, the feasibility study confirmed that threedimensional data can collected to obtain a threedimensional data set as basis for the estimation of moisture distribution inside massive building materials.
2nd International Conference on Ultrahigh Performance Concrete, UHPC2018
Fuzhou, China
07.11.2018
10.11.2018
0
Rosemarie Helmerich
eng
uncontrolled
Moisture
eng
uncontrolled
Bluetooth
eng
uncontrolled
Microwaves
eng
uncontrolled
Monitoring
Ingenieurbau
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Infrastruktur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation