Abstract

An analytical model was developed for rectangular overlapped platelet reinforced composites subjected to unidirectional axial load. Two sets of the matrix/platelet displacement solutions (far-field and transient), were exactly derived based on the theory of elasticity. These displacement solutions were then superposed for achieving analytical expressions for the matrix/platelet 3D stress field components over the entire composite system including the platelet end region, using the adding imaginary fiber technique. The platelet/matrix components could exactly satisfy the equilibrium and compatibility conditions and satisfy the equilibrium requirements and the overall boundary conditions. The obtained analytical results were then validated by the Shear-lag model.

摘要

建立了矩形重叠片状增强复合材料在单向轴向载荷作用下的分析模型。两组基质/血小板位移解决方案（远场和瞬态）是根据弹性理论精确推导出的。然后叠加这些位移解，以使用添加假想纤维技术在整个复合系统（包括血小板末端区域）上实现基体/血小板 3D 应力场分量的解析表达式。小片/基体组分完全满足平衡和相容条件，满足平衡要求和整体边界条件。然后通过剪切滞后模型验证获得的分析结果。