29724
2013
deu
lecture
0
--
--
--
Structural integrity in Fire: An intermediate-scale approach for testing composites
The Seventh Triennial International Fire & Cabin Safety Research Conference
32656
The Seventh Triennial International Fire & Cabin Safety Research Conference
Philadelphia, PA, USA
2013-12-02
2013-12-05
0
Sebastian Timme
Weder Datei noch physisches Exemplar vorhanden ("No Access")
Präsentation
53240
2021
eng
7340
102
article
Elsevier
Amsterdam
1
--
--
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Bench-scale fire stability testing - Assessment of protective systems on carbon fibre reinforced polymer composites
Fire resistance testing of components made of carbon fibre reinforced polymers (CFRP) usually demands intermediate-scale or full-scale testing. A bench-scale test is presented as a practicable and efficient method to assess how different fire protective systems improve the structural integrity of CFRPs during fire. The direct flame of a fully developed fire was applied to one side of the CFRP specimen, which was simultaneously loaded with compressive force. Three different approaches (film, non-woven, and coatings) were applied: paper with a thickness in the range of μm consisting of cellulose nanofibre (CNF)/clay nanocomposite, nonwoven mats with thickness in the range of cm and intumescent coatings with a thickness in the range of mm. The uncoated specimen failed after just 17 s. Protection by these systems provides fire stability, as they multiply the time to failure by as much as up to 43 times. The reduced heating rates of the protected specimens demonstrate the reduced heat penetration, indicating the coatings’ excellent heat shielding properties. Bench-scale fire stability testing is shown to be suitable tool to identify, compare and assess different approaches to fire protection.
Polymer testing
0142-9418
10.1016/j.polymertesting.2021.107340
1873-2348
urn:nbn:de:kobv:b43-532401
publish
18.10.2021
Creative Commons - CC BY - Namensnennung 4.0 International
Weronika Tabaka
Sebastian Timme
Tobias Lauterbach
L. Medina
L. A. Berglund
F. Carosio
S. Duquesne
Bernhard Schartel
eng
uncontrolled
Fire stability
eng
uncontrolled
Bench-scale fire resistance
eng
uncontrolled
Carbon fibre reinforced polymer
eng
uncontrolled
Protective coatings
Ingenieurbau
7 Bauwerkssicherheit
7.5 Technische Eigenschaften von Polymerwerkstoffen
Infrastruktur
Fire Science
Verlagsliteratur
Datei für die Öffentlichkeit verfügbar ("Open Access")
Wissenschaftliche Artikel der BAM
Bundesanstalt für Materialforschung und -prüfung (BAM)
https://opus4.kobv.de/opus4-bam/files/53240/21polymtest.pdf
36892
2016
eng
1465
1470
2
conferenceobject
Interscience communications
0
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Composites in fire: Intermediate-scale testing of sandwich panels and shells
Intermediate-scale testing is indispensable when investigating the fire resistance under simultaneous compressive load of components made of glass- and carbon-fibre-reinforced composites (GFRP and CFRP). BAM is successfully operating an intermediate-scale test stand, developed for a specimen size of 500 mm x 500 mm (1000 mm). The fire resistance in terms of fire stability of CFRP and GFRP sandwiches are investigated, e.g. at 20 % of their compressive failure load at room temperature. Times to failure increase by up to a factor of 4 due to intumescent coatings. For GFRP sandwiches, different core structures with and without additional flame retardants show an astonishing impact on time to failure. CFRP shell structures are investigated on the intermediate scale with and without stringer reinforcements, resulting in completely different mechanical failure behaviour in the ultimate load test as opposed to the fire resistance test. The stringers become the only load-carrying part, while the shell acts as a protective layer. Thus the design exploiting this self-protection potential, i.e. the residue of the front skin protecting the load-bearing structure, is highlighted as a most promising route to enhance the fire resistance of lightweight materials.
Interflam 2016, Conference Proceedings of the 14th International Interflam Conference
978-0-9933933-2-7
978-0-9933933-3-4
Interflam 2016
Egham, Surrey, UK
04.06.2016
06.06.2016
Bernhard Schartel
Sebastian Timme
Andreas Hörold
Volker Trappe
Manfred Korzen
eng
uncontrolled
composite
eng
uncontrolled
fire stability
eng
uncontrolled
fire resistance
eng
uncontrolled
sandwich panels
eng
uncontrolled
shells
eng
uncontrolled
intermediate-scale testing
Ingenieurbau
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
30976
2013
deu
lecture
0
--
--
--
Composites in fire. A safety aspect for public transportation
Fire Science Workshop
33964
Fire Science Workshop
Berlin, Germany
2013-11-29
2013-11-29
0
Sebastian Timme
Weder Datei noch physisches Exemplar vorhanden ("No Access")
Präsentation
31057
2014
deu
lecture
0
--
--
--
Structural Integrity in Fire: An Intermediate-Scale Approach on Plain and Shell-Structured Composites
16th European Conference on Composite Materials, ECCM16
34048
16th European Conference on Composite Materials, ECCM16
Seville, Spain
2014-06-22
2014-06-26
0
Sebastian Timme
Weder Datei noch physisches Exemplar vorhanden ("No Access")
Präsentation
33628
2015
deu
lecture
0
--
--
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Carbon Fiber Reinforced Polymer Shells in Fire: Structural Integrity In Intermediate-Scale
FRPM 2015, 15th European Meeting on Fire Retardancy and Protection of Materials
36738
FRPM 2015, 15th European Meeting on Fire Retardancy and Protection of Materials
Berlin, Germany
2015-06-22
2015-06-25
0
Sebastian Timme
Weder Datei noch physisches Exemplar vorhanden ("No Access")
Präsentation
36069
2016
eng
lecture
0
--
--
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Structural integrity of CFRP in fire
Fire stabilty of carbon fiber reinforced polymer shell structurres in intermediate-scale (500 x 500 mm²). Specimen is exposed to fully developed fire and loaded with static compressive force. Time to failure of CFRP is measured.
Working group seminar 7.5 (Schartel)
Plockhorst, Germany
13.03.2016
16.03.2016
0
Sebastian Timme
eng
uncontrolled
Carbon fiber reinforced polymer
eng
uncontrolled
Fire stability
eng
uncontrolled
Intermediate-scale
eng
uncontrolled
Shell structure
eng
uncontrolled
Structural integrity
Ingenieurbau
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
42991
2017
eng
Article UNSP V014T14A017, 1
6
14
conferenceobject
ASME Press
1
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Fire protection systems for tanks made of GFRP
The application of lightweight materials for tanks for transportation appears promising. Besides saving weight and therefore transportation costs, new complex geometries that depart from common cylindrical shapes of steel tanks can be manufactured. For transportation of dangerous goods, fire and explosion safety must be maintained to prevent accidents with serious consequences. In this work the fire behavior of lightweight tanks made from glass fiber reinforced plastics (GFRP) with complex geometries is investigated. Pretests on intermediate scale GFRP plates are conducted to identify suitable fire protection systems and surface treatments for composite tanks. The fire resistance is shown to be improved by addition of fire protective coatings and integrated layers. Finally, a complex rectangular GFRP tank with a holding capacity of 1100 liters is fire protected with an intumescent fire coating. The tank is filled up to 80 % with water and burned under an engulfing fully developed fire. It was shown that the intumescent layer could expand before the decomposition of the resin occurred. Furthermore, the adhesion between tank surface and coating was maintained. The structure could withstand a fire for more than 20 min.
IMECE 2017 conference proceedings
978-0-7918-5849-3
ASME International Mechanical Engineering Congress and Exposition (IMECE) 2017
Tampa, Florida, USA
03.11.2017
09.11.2017
14.05.2018
Sina Pötzsch
Sebastian Timme
Christian Sklorz
Danilo Skoczowsky
Frank Otremba
Simone Krüger
eng
uncontrolled
Lightweight tank
eng
uncontrolled
Composites in fire
eng
uncontrolled
GFRP
eng
uncontrolled
Fire retardants
eng
uncontrolled
Intumescent layer
Ingenieurbau
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
41283
2017
eng
320
329
178
article
Elsevier Ltd.
1
--
--
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Fire stability of carbon fiber reinforced polymer shells on the intermediate-scale
The fire stability of carbon fiber reinforced polymer (CFRP) shell structures was investigated using an intermediate-scale test setup. The shell specimens are representative of typical load-bearing CFRPs in modern civil aviation. The CFRP shell specimens were exposed to a fully developed fire with direct flame impingement to one side at a heat flux of 182 kW/m2. Specimens were simultaneously loaded with constant compressive force equal to 40% of the ultimate failure load. CFRP shells and four different fire retarding configurations, using integrated protective layers, were investigated. Unprotected CFRP specimens failed after just 27 s. Specimens with integrated protective layers with low heat conductivity and high burn-through resistance showed the most promising results. An integrated titanium foil decelerated the decomposition of the epoxy matrix and increased the time to failure by 68% compared to the unprotected CFRP shell.
Composite Structures
10.1016/j.compstruct.2017.07.025
0263-8223
1879-1085
21.09.2017
Sebastian Timme
Volker Trappe
Manfred Korzen
Bernhard Schartel
eng
uncontrolled
Fire stability
eng
uncontrolled
Carbon fiber reinforced polymer (CFRP)
eng
uncontrolled
Thermomechanical properties
eng
uncontrolled
Buckling
eng
uncontrolled
Fully developed fire
Ingenieurbau
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")