玻璃钢/复合材料Issue(4)：21-26,6.
平纹编织复合材料层板高速冲击损伤机理研究
STUDY ON DAMAGE MECHANISM OF PLAIN WEAVE COMPOSITE UNDER HIGH VELOCITY IMPACT
杨光猛 1赵美英 1万小朋1
作者信息
- 1. 西北工业大学航空学院,西安 710072
- 折叠
摘要
Abstract
According to the fracture morphology of the plain weave carbon laminate,an analytical energy model was developed based on energy conservation law.The model considered that the kinetic energy of the projectile was absorbed by the laminate through shear failure,tensile fracture,compression deformation,delamination and moving in the crushed area during penetration.The influence of strain rate of the composite was taken into account.The depth of shear plugging was obtained by ballistic limit velocity in experiment and theory.Meanwhile,the crack length and the damage area of delamination were measured in impact experiment.The experiment for carbon weave composite laminate was conducted under flat and hemispheric projectile to obtain the ballistic limit velocity.Based on the validated model,further studies show that most energy is absorbed by tensile fracture of back surface under medium velocity,while compression deformation becomes the main absorbing mechanism under high velocity.The influence of delamination in energy absorption should be considered due to the large damage area.Meanwhile,more energy is absorbed by flat projectile than hemispherical projectile.关键词
编织复合材料/碳纤维/能量守恒/分层损伤/解析模型Key words
weave composite/carbon fiber/energy conservation/delamination/analytical model分类
通用工业技术引用本文复制引用
杨光猛,赵美英,万小朋..平纹编织复合材料层板高速冲击损伤机理研究[J].玻璃钢/复合材料,2018,(4):21-26,6.
