| 含稳定缺陷的简支梁在均布强动载荷作用下的刚塑性响应 |
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| 引用本文： | 杨嘉陵,余同希.含稳定缺陷的简支梁在均布强动载荷作用下的刚塑性响应[J].固体力学学报,1992,13(2):101-112. |
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| 作者姓名： | 杨嘉陵 余同希 |
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| 作者单位： | 北京大学 100871
(杨嘉陵)，北京大学 100871(余同希) |
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| 摘 要： | 本文分析了中间截面含缺陷的轴向可移简支梁在均布阶跃、脉冲和冲击载荷作用下的刚塑性动力响应,给出了整个响应过程封闭形式的完全解,讨论了耗散能量分配与缺陷参数的关系.本文的结果对确定结构的动态失效准则是有重要参考价值的.
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| 关 键 词： | 简支梁 缺陷 强动载荷 刚塑性 |
PLASTIC RESPONSE OF A SIMPLY SUPPORTED IMPERFECT BEAM SUBJECTED TO A UNIFORM INTENSE DYNAMIC LOADING |
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| Yang Jialing Yu Tongxi.PLASTIC RESPONSE OF A SIMPLY SUPPORTED IMPERFECT BEAM SUBJECTED TO A UNIFORM INTENSE DYNAMIC LOADING[J].Acta Mechnica Solida Sinica,1992,13(2):101-112. |
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| Authors: | Yang Jialing Yu Tongxi |
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| Abstract: | In this paper,dynamic response of a rigid,ideally plastic simply supported beam,in which aimperfection is contained in midspan cross-section,subjected to a uniform step,pulse and impusiveloading,is presented by neglecting the axial constrainse.The closed complete solutions for entire dynam-ic response process are obtained.The relationship between the distribution of energy dissi pared athinges and the parameter of imperfection is discussed.The results of this paper will be important in con-struction of dynamic failure criteria. |
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| Keywords: | simply supported beam imperfection intense dynamic loading rigid plasticity complete solutions distribution of dissipated energy |
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