横向纤维搭桥下矩形脱层热屈曲数值模拟

Numerical Simulation of Thermal Buckling of Rectangular-Shaped Delamination Bridged by Lateral Fibers in 3D Composites

基于板的小挠度理论以及热屈曲分析的ANSYS有限元法,考虑横向纤维搭桥的作用,对矩形薄板的脱层热屈曲进行数值模拟.有限元分析结果表明,随着纤维搭桥刚度的提高,热屈曲的临界屈曲温度随之增大,脱层屈曲区域逐渐减小.通过数值模拟的结果,能为工程结构中热屈曲问题提供参考.

A numerical analysis of the thermal buckling was conducted to the thin rectangular plate which was affected by fiber bridges,based on the small deflection theory of plate and ANSYS finite element theory.The analysis results show that with the constrain stiffness growing,the buckling temperature increases and the the buckling region becomes smaller.The numerical simulation results can provide reference for thermal buckling of engineering structures.