Numerical modeling on compressive behaviors of 3-D braided composites under high temperatures at microstructure level
作者: Hailou WangBaozhong SunBohong Gu
作者单位: 1College of Textiles, Donghua University, Shanghai 201620, China
刊名: Composite Structures, 2017, Vol.160 , pp.925-938
来源数据库: Elsevier Journal
DOI: 10.1016/j.compstruct.2016.10.130
关键词: 3D braided compositeHigh temperatureDuctile/brittle transitionFailure mechanismFinite element method (FEM)
英文摘要: Abstract(#br)This paper reports a numerical modeling on the compressive behaviors of 3-D braided carbon/epoxy composites with different braided angles under high temperatures at microstructure level. The coupling effect of temperature and braided angle on the compressive failure mechanisms and damage morphologies have been calculated with finite element method (FEM) and compared with experimental results. In the FEM model, the imperfect interfacial bonding and the fibers with waviness were introduced into the FEM model. The ductile/brittle transition temperature was investigated and the ductile failure criterion was employed in the FEM model at high temperatures. It was found that braided angle affects the compressive failure. The compressive failure changes from ductile to brittle when...
全文获取路径: Elsevier  (合作)
影响因子:2.231 (2012)