Probabilistic failure simulation of glass fibre reinforced weft-knitted thermoplastics
Source abstract
Abstract
Abstract If textile-reinforced composites should be put into practice, the proof of load-bearing capacity has to be provided. For this purpose, deterministic overall safety proofs without material adapted partial safety factors are used which do not meet the textile-specific scatter characteristics and therefore neglect many advantages of those composites. Based on deterministic stress-based failure criteria and given loading conditions, a probabilistic methodology to predict the joint failure probability is proposed. The methodology is verified experimentally for hybrid yarn based textile thermoplastics. A statistical material characterisation using flat specimens, multi-axial tests with tube specimens and a Monte-Carlo simulation are used for that purpose. As a significant outcome of the study, the reliability of the failure prediction is significantly improved especially for multi-axial stress states with failure mode interaction. Based on the improved knowledge about the anisotropic material uncertainties, a more significant partial safety factor can be determined.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Textile materials and evaluations · Natural Fiber Reinforced Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. Production of textile reinforced thermoplastic profiles by roll forming10.1016/j.compositesa.2003.12.001 ↗
2. Film stacking impregnation model for a novel net shape thermoplastic composite preforming process10.1016/j.compscitech.2008.01.019 ↗
3. High performance thermoplastic composite from flat knitted multi-layer textile preform using hybrid yarn10.1016/j.compscitech.2010.12.029 ↗
4. An integral design and manufacturing concept for crash resistant textile and long-fibre reinforced polypropylene structural components10.1016/j.proeng.2011.04.345 ↗
5. Polypropylene/glass fibre 3D-textile reinforced composites for automotive applications10.1016/j.matdes.2010.08.049 ↗
6. A constitutive model for anisotropic damage in fiber-composites10.1016/0167-6636(94)00053-0 ↗
7. Constitutive modelling of fibre-reinforced composites with unidirectional plies using a plasticity-based approach10.1016/j.compscitech.2011.03.009 ↗
8. Failure analysis of triaxial braided composite10.1016/j.compscitech.2008.09.013 ↗
9. A phenomenologically based damage model for textile composites with crimped reinforcement10.1016/j.compscitech.2009.09.008 ↗
10. A phenomenologically based damage model for 2D and 3D-textile composites with non-crimp reinforcement10.1016/j.matdes.2011.01.049 ↗
11. The predictive capability of failure mode concept-based strength criteria for multidirectional laminates10.1016/S0266-3538(03)00218-5 ↗
12. Comparison between experimental and theoretical results using Cuntzes Failure Mode Concept model for composites under triaxial loadings10.1177/0021998312456409 ↗
13. Cuntze · 1997
14. Failure analysis of FRP laminates by means of physically based phenomenological models10.1016/S0266-3538(96)00140-6 ↗
15. The effect of temperature on mechanical properties and failure behaviour of hybrid yarn textile-reinforced thermoplastics10.1016/j.matdes.2011.04.017 ↗
16. Damage evolution of novel 3D textile-reinforced composites under fatigue loading conditions10.1016/j.compscitech.2009.10.010 ↗
17. An energy based damage mechanics approach to modelling impact onto woven composite materials. Part I: Numerical models10.1016/j.compositesa.2005.12.013 ↗
18. Modelling fabric reinforced composites under impact loads10.1016/S1359-835X(00)00186-X ↗
19. Characterising failure in textile-reinforced thermoplastic composites by electromagnetic emission measurements under medium and high velocity impact loading10.1016/j.ijimpeng.2012.05.001 ↗
20. Thoma KH. Stochastische Betrachtung von Modellen für vorgespannte Zugelemente. PhD thesis, ETH Zürich; 2004.
21. Department of Defence. Metallic materials and elements for aerospace vehicle structures. Military Handbook, MIL-HDBK-5H; 1998.
22. Moser · 1991
23. Strength characterization of fibers and fibrous materials: experimental-reliability based novel approach10.1016/j.matdes.2013.04.021 ↗
24. Probabilistic simulation of multi-scale composite behaviour10.1016/j.tafmec.2003.11.005 ↗
25. Mechanics-based statistics of failure risk quasibrittle structures and size effect of safety factors10.1073/pnas.0602684103 ↗
26. Statistical modelling of compression and fatigue damage of unidirectional fiber reinforced composites10.1016/j.compscitech.2008.11.024 ↗
27. Stochastic failure modelling of unidirectional composite ply failure10.1016/j.ress.2012.05.006 ↗
28. Hufenbach W, Gude M, Böhm R, Thieme M. Failure behaviour of textile reinforced thermoplastic composites made of hybrid yarns – I: Probabilistically based damage models. In: 12th Int conf of fracture, Ottawa; 2009.
29. Hufenbach W, Gude M, Thieme M, Böhm R. Failure behaviour of textile reinforced thermoplastic composites made of hybrid yarns – II: Experimental and numerical studies. In: 12th Int conf of fracture, Ottawa; 2009.
30. Failure criteria for glass-fiber reinforced composites under confining pressure10.1080/03601218508907506 ↗
31. DIN EN ISO 17025:2005 German Standard.
32. DIN EN ISO 6892-1:2009 German Standard.
33. A comparison of the predictive capabilities of current failure theories for composite laminates, judged against experimental evidence10.1016/S0266-3538(02)00125-2 ↗