复合材料科学与工程Issue(8)：74-85,12.DOI:10.19936/j.cnki.2096-8000.20250828.009
非理想缺陷层合板的界面参数分析
Interface parameter analysis of laminates with non-ideal defects
徐栋 1黄志强 1陈松 1谢晶晶1
作者信息
- 1. 武汉工程大学 机电工程学院,武汉 430205
- 折叠
摘要
Abstract
Considering the influence of bridge fibers,a representative volume element(RVE)with damaged re-gions of vanishing thickness and a spring model with no thickness is established to characterize the ideal and non-i-deal degree of cracks by two independent interface parameters(interface parameters can be used to simulate non-i-deal degree in the sensitive interval)is developed to study for estimation of lanimates with transverse matrix cracks.For laminates with open and closed cracks,pending partition loads are applied in the statically indeterminate bound-ary.This paper not only consider three cases of the idela cracks,the smooth plane-surface open crack,the smooth plane-surface closed crack and the perfect meshing open crack,but also two cases of the non-ideal cracks,the open cracks and the closed cracks.The study not only verifies the symmetry of the flexibility element and the equali-ty of the change rate of the shear flexibility element under closed cracks,but also shows that the non-ideal degree of cracks has a great influence on the effective coupling coefficient and the effective shear flexibility.关键词
横向基体裂纹/理想裂纹/非理想裂纹/变分分析/界面参数/刚度退化/复合材料Key words
transverse matrix crack/ideal crack/non-ideal crack/variational analysis/interface parameters/stiffness reduction/composites分类
通用工业技术引用本文复制引用
徐栋,黄志强,陈松,谢晶晶..非理想缺陷层合板的界面参数分析[J].复合材料科学与工程,2025,(8):74-85,12.
