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| 汽车覆盖件弹塑性失稳机理实验模拟研究 | |
| 引用本文： | 刘守荣,李大永,中村雅勇. 汽车覆盖件弹塑性失稳机理实验模拟研究[J]. 塑性工程学报, 2007, 14(3): 60-63 |
| 作者姓名： | 刘守荣 李大永 中村雅勇 |
| 作者单位： | 1. 中国农业大学,工学院,北京,100083 2. 上海交通大学,机械与动力工程学院,上海,200030 3. 日本国立千叶大学,日本千叶,263-0043 |
| 基金项目： | 教育部留学回国人员科研启动基金 |
| 摘 要： | 利用YBT模型,结合密栅云纹试验,模拟了汽车用钢板的拉伸过程。通过记录、测量、计算和分析,获得试样全部变形过程中的整场连续、瞬时位移、应变和应力信息。结果表明,汽车覆盖件回弹类缺陷是卸载不均匀压缩诱发的局部弹性失稳;起皱类缺陷是加载不均匀导致的塑性失稳。 |
| 关 键 词： | 覆盖件 缺陷 失稳 |
| 文章编号： | 1007-2012（2007）03-0060-04 |
| 收稿时间： | 2006-06-21 |
| 修稿时间： | 2006-06-212006-09-22 |
Experimental research on mechanism of buckling in large panel |
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| LIU Shou-rong,Li Da-yong,NAKAMURA Masao. Experimental research on mechanism of buckling in large panel[J]. Journal of Plasticity Engineering, 2007, 14(3): 60-63 | |
| Authors: | LIU Shou-rong Li Da-yong NAKAMURA Masao |
| Affiliation: | 1College of Technology China Agricultural University, Beijing 100083 China;2School of Mechanical Engineering Shanghai Jiaotong University, Shanhai 200030 China;3Faculty of Engineering Chiba University, Chiba 263-0043 Japan |
| Abstract: | The Yoshida Buckling Test and moire topography experiment is used to simulate the stretching process in sheet metals. And information including continuous and instantaneous displacement, strain and stress during the whole deformation process are obtained through register, measure, calculation and analysis. It is found that the spring defect of large panels is a phenomenon of local elastic which is induced by unloaded nonuniformly, while the wrinkling is a phenomenon of plastic instability which is induced by nonuniform loading. |
| Keywords: | panel defect instability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |