国防科技大学学报Issue(5)：121-127,7.DOI:10.11887/j.cn.201505019
拉伸－剪切耦合层合板优化设计及其应用
Optimization design of extension-shear coupled laminates and application in extension-twist coupled structure
摘要
Abstract
Focusing on the deficiencies of standard-form laminate with extension-shear coupling,such as weak extension-shear coupling,the design method for free-form laminate with extension-shear coupling using the method of optimization design was proposed.Necessary and sufficient material-independent conditions were derived for extension-shear coupled laminates.The stacking sequences of 7-ply to 14-ply free-form laminates with extension-shear coupling were derived.Comparisons were made on buckling strength and robustness of extension-shear coupled laminates.The free-form laminate with extension-shear coupling was used to design structure with extension-twist coupling.Compared to the standard-form laminate,the free-form laminate with extension-shear coupling is worse in buckling strength and robustness,while it’s stronger in coupling.The results also indicate that with an increase in the number of plies,the maximum extension-shear coupling flexibility coefficient of the free-form laminate decreases.关键词
拉伸-剪切耦合效应/层合板/优化设计/屈曲强度/拉伸-扭转耦合Key words
extension-shear coupling/laminate/optimization design/buckling strength/extension-twist coupling分类
通用工业技术引用本文复制引用
李谨,唐国金..拉伸－剪切耦合层合板优化设计及其应用[J].国防科技大学学报,2015,(5):121-127,7.基金项目
国家自然科学基金资助项目 （）
