论文部分内容阅读
基于大位移,有限转动假设的小应变Euler梁理论,建立了考虑界面滑移组合梁的求积元分析的完全拉格朗日列式,并对组合梁承受横向及轴向荷载时的变形进行了计算分析。通过与现有解析解和有限元计算结果的对比验证了求积元结果的准确性和高效性。结果表明所进行的考虑界面滑移组合梁的几何非线性分析是有效的。当对精度要求不高时,可仅考虑Green应变非线性项中挠度二次项的影响。
Based on the small strain Euler beam theory of large displacement and finite rotation assumption, the complete Lagrangian formulation of the integrated elemental analysis of interfacial sliding composite beams is established, and the deformation of composite beams subjected to transverse and axial loads The calculation and analysis. The accuracy and efficiency of the quadrature unitary results are verified by comparison with the existing analytical solution and finite element method. The results show that the geometric nonlinear analysis of the interface-slip composite beam is effective. When the accuracy is not high enough, only the quadratic term of the Green strain can be considered.