复合材料箱梁非线性分析的本构方程研究  

Research on Constitutive Equation of Nonlinear Analysis for Composite Box Beams

作　　者：杨东涛[1] 吴亚平[1] 苏强[1] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2005年第6期17-19,共3页Journal of Lanzhou Jiaotong University

基　　金：国家自然科学基金项目资助(50378043)

摘　　要：在考虑几何非线性的前提下,计入各种耦合效应,利用复合材料层合板理论对薄壁层合箱梁的约束扭转进行了分析,给出了杆端内力的计算公式,并指出能量方法在解此类复杂问题时不易解出其精确解.On the basis of geometric nonlinear analysis, considering various coupled effects, a theory of constrained torsion analysis of composite thin-walled box beams was developed based on the theory of composite laminated plates. Formula was presented about internal force. The results of analysis indicate that it＇s very hard to work out so complex question for energy method.

关 键 词：约束扭转 复合材料 箱形梁 剪力滞后 几何非线性 

分 类 号：TB330.1[一般工业技术—材料科学与工程] U448.22[建筑科学—桥梁与隧道工程]