| DYNAMIC LOAD ANALYSIS OF UNDERGROUND STRUCTURE UNDER EFFECT OF BLAST WAVE |
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| 引用本文： | 任云燕,张莉,韩峰. DYNAMIC LOAD ANALYSIS OF UNDERGROUND STRUCTURE UNDER EFFECT OF BLAST WAVE[J]. 应用数学和力学(英文版), 2006, 27(9): 1281-1288. DOI: 10.1007/s 10483-006-0916-y |
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| 作者姓名： | 任云燕 张莉 韩峰 |
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| 作者单位： | Mechanical and Engineering Institute Beijing Institute of Technology Beijing 100081 P. R. China，School of Science Beijing Institute of Technology Beijing 100081 P. R. China，Mechanical and Engineering Institute Beijing Institute of Technology Beijing 100081 P. R. China |
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| 摘 要： | A semi-analytical method of solving the problem of dynamic stress concentration of arbitrary underground structure under the effect of blast waves was introduced. Using the Fourier transform theory, the shock waves (in the forms of SH-waves) can be converted into frequency bands. After employing complex functions and conformal mapping, the admittance functions of various underground structures were obtained. Then, the problem of the time domain dynamic stress response of underground structure can be easily solved through the Fourier inverse transform. At last, the results and curves of the dynamic stress for the square, triangle and horseshoe cavity were presented.
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| 关 键 词： | 动态应力 爆振波 FFT转换 秘密结构 准解析法 |
| 文章编号： | 10.1007/s10483-006-0916-y |
| 收稿时间： | 2004-12-14 |
| 修稿时间： | 2006-06-20 |
Dynamic load analysis of underground structure under effect of blast wave |
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| Yun-yan Ren Doctor,Li Zhang,Feng Han. Dynamic load analysis of underground structure under effect of blast wave[J]. Applied Mathematics and Mechanics(English Edition), 2006, 27(9): 1281-1288. DOI: 10.1007/s 10483-006-0916-y |
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| Authors: | Yun-yan Ren Doctor Li Zhang Feng Han |
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| Affiliation: | 1. Mechanical and Engineering Institute, Beijing Institute of Technology,Beijing 100081, P. R. China
2. School of Science, Beijing Institute of Technology, Beijing 100081, P. R. China |
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| Abstract: | A semi-analytical method of solving the problem of dynamic stress concentration of arbitrary underground structure under the effect of blast waves was introduced. Using the Fourier transform theory, the shock waves (in the forms of SH-waves) can be converted into frequency bands. After employing complex functions and conformal mapping, the admittance functions of various underground structures were obtained. Then, the problem of the time domain dynamic stress response of underground structure can be easily solved through the Fourier inverse transform. At last, the results and curves of the dynamic stress for the square, triangle and horseshoe cavity were presented. |
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| Keywords: | dynamic stress blast wave FFT transform underground structure |
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