【摘要】 本文根据一阶横向剪切变形理论 ,导出了对称层合梁的挠曲线微分方程。求解了层合梁在简单载荷作用下的挠度曲线和应力。横向剪切对挠度和应力的影响依赖于层合梁的材料常数、约束类型、载荷种类和跨高比。计算结果表明 ,横向剪切对层合梁挠度影响颇为显著 ,且当层合梁跨高比大于 18时 ,可忽略横向剪切效应更多还原

【Abstract】 Based on the theory of one-order shear deformation,the differentiating equations of flexural curve of symmetrical laminate bearm were educed.The solutions of flexural curve and stress for laminate beam under simple loading were determined.The effect of across shear on flexibility and stress depends upon the ratio of length and hight,material,obligation and loading kind of laminate beam.The calcu ated result shows that the effect of across shear on flexibility for laminate beam are notable.As the ratio length and hight of laminate beam is more than 18,the shear effect may be forgetful.更多还原