计算力学学报2012，Vol.29Issue(4)：522-526,5.
爆炸荷载作用下地下拱形结构动力响应样条小波有限元研究
The dynamic reaction study of underground arch structure subjecting to blasting load with spline wavelet finite element numerical simulation
摘要
Abstract
The wavelet finite element is adopted to study the dynamic action of underground structure subjected to blasting load in order to overcome the disadvantages of stress centralism and inefficient com- putation occurring in numerical simulation. It is because of the characteristics of material singularity, complexity of geologic structure and high-speed loading. In this paper, according to the spline finite point method,the new elements of one-way and two-way annulus sector interval B-spline elements were con- structed using the scaling functions as interpolation function. And they were used to study the dynamic reaction of underground arch structure under blasting load through programming with Matlab software. The result showed that the computation precision is high with little elements and the computation effi- ciency is improved 50% comprised with common finite element.关键词
爆炸荷载/地下拱形结构/动力响应/区间B样条小波Key words
blast load/underground arch structure/dynamic action/interval B-spline wavelet分类
数理科学引用本文复制引用
孙惠香,许金余,杨炳会..爆炸荷载作用下地下拱形结构动力响应样条小波有限元研究[J].计算力学学报,2012,29(4):522-526,5.基金项目
陕西省自然科学基金（SJ08E210）资助项目. （）
