用于夹层梁静动力及屈曲分析的新型组合结构单元
林建平,陈昆,潘剑超,王冠楠,冯倩

New composite finite element for static, dynamic and buckling analysis of sandwich composite beams
Jianping LIN,Kun CHEN,Jianchao PAN,Guannan WANG,Qian FENG
图 3 3层组合梁的微小单元
Fig.3 Infinitesimal element of three-layer composite beam