Abstract：The impact load acting on actual structure is often very complex, which has greatly influence on dynamic buckling of structure. The dynamic buckling of elastic compression bar under two-parameters impact load is studied, by simplifying the load with equivalent rectangular pulse. The impact buckling of ideal elastic compression bar and with initial imperfection are analyzed and calculated. Based on the examples of axial compression bars with both ends simple supported and fixed, the influence law of impact loading form on dynamic buckling of axial compression bar is initially revealed, and some valuable conclusions are drawn.
2011, Vol. 30 
