| 弹塑性悬臂梁结构动力响应中的弹性效应 |
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| 引用本文： | 侯唯健,余同希,苏先樾. 弹塑性悬臂梁结构动力响应中的弹性效应[J]. 固体力学学报, 1995, 0(1) |
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| 作者姓名： | 侯唯健 余同希 苏先樾 |
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| 作者单位： | 北京大学力学系 |
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| 摘 要： | 本文提出由一组质量－弹簧构成的力学系统来研究弹塑性悬臂梁的动力响应问题，其数值结果与有限元解吻合得相当好，这种简化模型能够反映出梁动力响应中的本质特性，还特别显示出梁中弹性对弯矩分布和能量耗散的影响，提供了很有价值的计算结果．
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| 关 键 词： | 弹塑性，弹性效应，动力响应，悬臂梁 |
ELASTIC EFFECT IN DYNAMIC RESPONSE OF PLASTIC CANTILEVER BEAMS TO IMPACT |
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| Hou Weijian,Yu Tongxi,Su Xianyue. ELASTIC EFFECT IN DYNAMIC RESPONSE OF PLASTIC CANTILEVER BEAMS TO IMPACT[J]. Acta Mechnica Solida Sinica, 1995, 0(1) |
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| Authors: | Hou Weijian Yu Tongxi Su Xianyue |
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| Abstract: | A lumped masses-springs model is proposed to analyze the dynamic response of an elastic-plastic cantilever besulted from impact.The numerical results are in good agreement with those by finite-element approaches.The simplified model can catch the most essential features of elastic-plastic response of beams;in particular,it demonstrates the effect of elastic deformation on the distributions of bending moment and energy dissipation,and provides valuable quatitative results. |
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| Keywords: | elastic-plasticity elastic effect dynamic response cantilever beam |
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