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| 均布冲击荷载作用下金属方板的变形与起裂研究 | |
| 引用本文： | 崔高领,蒋志刚,胡平. 均布冲击荷载作用下金属方板的变形与起裂研究[J]. 钢结构, 2008, 23(12): 24-27 |
| 作者姓名： | 崔高领 蒋志刚 胡平 |
| 作者单位： | 国防科技大学,长沙,410072;国防科技大学,长沙,410072;国防科技大学,长沙,410072 |
| 摘 要： | 基于接触爆炸荷载作用下的金属薄板试验,利用有限元软件ANSYS/LS-DYNA,分析均布冲击荷载作用下固支方板和单向支承方板的动力响应过程、最终变形、起裂和耗能。结果表明,边界条件对方板的动力响应和起裂有重要影响：固支方板的起裂位置为边界中点,而单向支承方板的起裂位置为角点附近;单向支承板边界产生较大的面内位移,在相同荷载作用下,其最终中心挠度、动力响应时间和变形耗能均比固支板大;单向支承方板的起裂冲量比固支方板可提高50%以上。 |
| 关 键 词： | 动力响应 冲击荷载 数值模拟 边界条件 起裂冲量 |
STUDY ON THE DEFORMATION AND RUPTURE OF METAL SQUARE PLATES SUBJECTED TO UNIFORM IMPULSIVE LOADS |
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| Cui Gaoling,Jiang Zhigang,Hu Ping. STUDY ON THE DEFORMATION AND RUPTURE OF METAL SQUARE PLATES SUBJECTED TO UNIFORM IMPULSIVE LOADS[J]. Steel Construction, 2008, 23(12): 24-27 | |
| Authors: | Cui Gaoling Jiang Zhigang Hu Ping |
| Affiliation: | Cui Gaoling Jiang Zhigang Hu Ping(National University of Defense Technology Changsha 410072) |
| Abstract: | Based on published experimental data, plastic deformation and rupture problems of clamped and unilaterally supported metal square plates subjected to uniform impulse loads were analyzed with ANSYS/LS DYNA software.The results ind icate that plastic deformation and rupture are greatly affected by the supporting cond ition of the plates.The clamped plate starts to rupture at the middle point of the boundary lines, and the first rupture location of the unilaterally supported plate is at the neighborhood of the... |
| Keywords: | dynamic response impulsive load numerical simulation supporting condition rupture impulse |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |