考虑损伤效应的粘弹性层合板的非线性动力响应分析

基金项目: 国家自然科学基金项目(10272024)

详细信息

NONLINEAR DYNAMIC RESPONSES OF VISCOELASTICLAMINATED PLATES WITHDAMAGE

摘要

摘要: 扩展了Ladeveze 的复合材料单层板的损伤模型, 使之可用于考虑剪切粘弹性的复合材料层合板的损伤分析, 基于Von Karman 方程, 建立了考虑损伤效应的粘弹性复合材料层合板的非线性动力学方程, 且应用有限差分法和迭代法进行求解。数值结果表明, 考虑结构的损伤和损伤演化时, 结构的非线性动力响应将发生显著的变化。
- 剪切粘弹性 /
- 层合板 /
- 损伤效应 /
- 几何非线性
Abstract: The Ladeveze’s damage model of the uni-ply for laminated plates is developed , and it is used to damageanalysis of the generally laminated plates including shear viscoelasticity. On the basis of the Von Karman theory , the non-linear equations of viscoelastic laminated composite plates with damage are derived , and by using the finite differencemethod and iteration method , these equations are solved. Numerical results show that the dynamic responses of the structure will change remarkably when considering the damage and damage evolution.
- shear viscoelasticity /
- laminated plates /
- damage effect /
- geometric nonlinearity