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。
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.
出处
《桥梁建设》
EI
CSCD
北大核心
1998年第3期43-48,共6页
Bridge Construction
基金
上海市博士后基金
关键词
复合材料
层合梁
刚度
应力分析
有限元法
composite materials,laminated composite beam,rigidity,element stiffness matrix,stress analysis,finite element method
