STUDY ON INFLUENCE OF STRESS WAVE EFFECT FOR IMPACT BIFURCATION BUCKLING OF AXIAL COMPRESSION BARS WITH DIFFERENT BOUNDARY CONDITIONS
At early stage,study on impact bifurcation buckling of axial compression bars is mainly based on Amplifying Function Method,which shields the nature of buckling to some degree. So there is some research on influence of stress wave effect emerging. Nowadays,related research has been based mainly on the assumption of fixed at no-impact end or stress wave-front. Unfortunately,this method could not take the inter-supporting between different stressing parts of bar and boundary condition at far end into account for impact buckling problem. The impact bifurcation buckling of axial compression bars with different boundary conditions under step load are analyzed. Continuous of wave-front is used to solve the problem more properly instead of fixed. The regularity of stress wave effect for impact bifurcation buckling of axial compression bars with different boundary conditions are obtained,and some valuable conclusions are drawn.
Axial compression bar Impact bifurcation buckling Boundary condition Continuous of wave-front
Wei-Hui Zhong Ji-Ping Hao Lei Lei
College of Civil Engineering,Xian Univ. of Arch. & Tech.,Xian 710055,P.R. China Northwest Electric Power Design Institute,Xian 710075,P.R. China
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
112-118
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）