单环薄壁构件弯曲中心的计算

CALCULATION OF CURVE CENTRE FOR SINGLE RING THIN-WALLED STRUCTURE

介绍了开口薄壁构件弯曲中心的概念,推导了单环(闭口)薄壁构件弯曲中心的计算公式.薄壁构件抗扭刚度较小,与开口薄壁构件相同,单环(闭口)薄壁构件的常见失效方式也是扭转失效,确定单环薄壁构件的弯曲中心可为加载提供依据.

The concept of curve centre for open thin-walled structure is introduced.Then the calcu- lation formula of curve centre for close thin-walled is deduced.Torsional rigidity of thin- walled structure is often less.As same as open thin-walled structure,common failure way of single ring (close)thin-walled structure is also torgue failure.To define curve centre of single ring thin-walled structure can provide a foundation for add load.