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RESEARCH PRODUCT
Benchmarking of strength models for unidirectional composites under longitudinal tension
Ian SinclairAnthony R. BunsellMark SpearingHannah MortonSoraia PimentaLarissa GorbatikhYentl SwolfsAlain ThionnetAlain Thionnetsubject
TechnologyMaterials scienceComposite numberMaterials Science02 engineering and technologyFiber-reinforced composite0901 Aerospace EngineeringEngineering0203 mechanical engineeringFragmentationUltimate tensile strengthMicro-mechanicsCOMPUTED-TOMOGRAPHYLOAD-TRANSFERComposite material0912 Materials EngineeringMaterialsStress concentrationEPOXY COMPOSITESTRESS-CONCENTRATIONSScience & TechnologyDAMAGE ACCUMULATIONTension (physics)FIBER-REINFORCED COMPOSITESPolymer-matrix compositesExperimental dataMicromechanics021001 nanoscience & nanotechnologyFinite element methodEngineering Manufacturing020303 mechanical engineering & transportsWIDE FAILURE EXERCISEMechanics of MaterialsMaterials Science CompositesHYBRID COMPOSITES[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Ceramics and CompositesStrength0210 nano-technologyFINITE-ELEMENT0913 Mechanical Engineeringdescription
© 2018 Elsevier Ltd Several modelling approaches are available in the literature to predict longitudinal tensile failure of fibre-reinforced polymers. However, a systematic, blind and unbiased comparison between the predictions from the different models and against experimental data has never been performed. This paper presents a benchmarking exercise performed for three different models from the literature: (i) an analytical hierarchical scaling law for composite fibre bundles, (ii) direct numerical simulations of composite fibre bundles, and (iii) a multiscale finite-element simulation method. The results show that there are significant discrepancies between the predictions of the different modelling approaches for fibre-break density evolution, cluster formation and ultimate strength, and that each of the three models presents unique advantages over the others. Blind model predictions are also compared against detailed computed-tomography experiments, showing that our understanding of the micromechanics of longitudinal tensile failure of composites needs to be developed further. ispartof: COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING vol:111 pages:138-150 status: published
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-08-01 |