期刊
COMPUTATIONAL MATERIALS SCIENCE
卷 160, 期 -, 页码 42-52出版社
ELSEVIER
DOI: 10.1016/j.commatsci.2018.12.048
关键词
Composite materials; Numerical simulation; Tensile failure; Dynamic effects
资金
- Portuguese Governments Fundacao para a Ciencia e Tecnologia [SFRH/BD/115872/2016]
- SciTech Science and Technology for Competitive and Sustainable Industries [NORTE-01-0145-FEDER-000022]
- Programa Operacional Regional do Norte (NORTE2020), through Fundo Europeu de Desenvolvimento Regional (FEDER)
- Spanish Government [RYC-2015-17367]
- Programa Operacional Competitividade e Internacionalizacao and Programa Operacional Regional de Lisboa, through Fundo Europeu de Desenvolvimento Regional (FEDER)
- FCT -Fundacao para a Ciencia e Tecnologia
- Red Espanola de Supercomputacion
- [PTDC/EMS-PRO/4732/2014]
- Fundação para a Ciência e a Tecnologia [PTDC/EMS-PRO/4732/2014, SFRH/BD/115872/2016] Funding Source: FCT
A spring element model that takes into account the dynamic effects associated with fibre failure in composite materials is presented. The model is implemented in a parallel environment to allow a better performance in the prediction of the complex mechanisms associated with longitudinal tensile failure. The model is used to identify the changes in the stress fields around a broken fibre representing fibre failure as a dynamic phenomenon. In light of these changes in the stress fields, the cluster formation and failure development is analysed and the results are compared with the static spring element model. It is observed that the stress redistribution around a broken fibre is strongly dependent on the dynamic effects and it varies with the material in study, specially if the matrix is considered linear elastic. The changes in local stress redistribution are seen to affect the materials tensile behaviour and cluster formation, being this changes higher for a material with an elastic matrix.
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