【摘要】 讨论了复合材料层合梁刚度的确定，提出了一种能避免剪切闭锁现象的层合梁单元，并推导了单元刚度矩阵、几何刚度矩阵和质量矩阵，根据单元刚度矩阵，还推导了分析其连续体系的三弯矩方程。最后，探讨了层合梁的层间应力问题。更多还原

【Abstract】 The determination of laminated composite beams’ rigidities is studied.A laminated beam element free of shear lock phenomenon is put forword,and the element stiffness matrix the geometric stiffness matrix and the consistent mass matrix are advanced.According to the stiffness matrix,the equation of three moment analyzing the continuous laminated beams is also derived.Finally the interlaminate stresses of laminated beams are studied.更多还原