激光辐照下充压圆筒变形的相似律问题
Similarity criterion about deformation and failure of pressurized cylinder subjected to laser irradiation
查看参考文献13篇
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文摘
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以充压圆筒在强激光辐照下的变形与破坏响应为研究目标,首先利用相似分析方法,主要采用了方程分析法和量纲分析法,确定了相似准则.然后利用ANSYS有限元程序,模拟了三组几何和物理相似的大小模型.通过对计算结果的分析表明,满足相似准则的大小模型,在相应的时间和空间,相对的物理参量是一致的。 |
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其他语种文摘
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In this paper, the deformation and failure of a cylinder with inner pressure, which is irradiated by high power continuous wave laser beam, are investigated using the similarity analysis theory and FEM. At first, several dimensionless param-eters are presented as the similarity criterion based on the dimensional analysis and equations analysis methods. In order to verify the above criterion, numerical simulations on mechanical responses of different size cylinder, but with the same similarity parame-ters, are accomplished with the commercial FEM code ANSYS. FEM results demonstrate that main dimensionless physical param-eters are invariable at the same dimensionless position and time in different scale models, and prove that the similarity criterion presented in this paper is valid. |
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来源
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强激光与粒子束
,2004,16(8):962-966 【核心库】
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关键词
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相似准则
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有限元方法
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量纲分析
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激光破坏
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地址
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1.
中国科学院,力学研究所,工程科学研究部, 北京, 100080
2.
中国科学院力学研究所工程科学研究部, 北京, 100080
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-4322 |
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学科
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力学 |
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基金
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国家863计划
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文献收藏号
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CSCD:1670475
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参考文献 共
13
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