Tensile post-impact behaviour of thin carbon/epoxy and glass/epoxy hybrid woven laminates – Part II: Numerical study

摘要: Abstract This article concerns the study of post-impact damage propagation in two thin hybrid woven composite laminates loaded tension. Low velocity normal drop weight impact tests are first performed. Post-impact quasi-static tensile then carried out and monitored by Digital Image Correlation. The influence energy variation on fracture surfaces residual strength is studied. In order o have a better understanding mechanisms involved into laminates, four monomaterial sample configurations also tested. When after barely visible, behaves as non-impacted sample. it propagates whatever energy. grows direction perpendicular to loading for all while different scenarios observed laminates. evolves three steps depending energy: very low decrease, an important finally plateau.