Study on dynamic buckling of elastic compression bar under two-parameters impact load

ZHONG Wei-hui;HAO Ji-ping;LEI Lei

Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (9) : 211-215.

PDF(1254 KB)
PDF(1254 KB)
Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (9) : 211-215.
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Study on dynamic buckling of elastic compression bar under two-parameters impact load

  • ZHONG Wei-hui1; HAO Ji-ping1; LEI Lei2
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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.

Key words

elastic compression bar / two-parameters impact load / impact buckling / finite difference / initial imperfection

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ZHONG Wei-hui;HAO Ji-ping;LEI Lei. Study on dynamic buckling of elastic compression bar under two-parameters impact load[J]. Journal of Vibration and Shock, 2011, 30(9): 211-215
PDF(1254 KB)

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