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Indexed by:期刊论文
Date of Publication:2015-05-15
Journal:应用数学和力学
Included Journals:PKU、ISTIC
Issue:S1
Page Number:98-106
ISSN No.:1000-0887
Key Words:极限分析;安定分析;温度参数法;有限元;NURBS曲面
Abstract:极限分析与安定分析具有重要的工程意义及广阔的应用前景,温度参数法是其中一种有效的求解方法。针对温度参数法难于推广至三维,求解问题相对有限的缺陷,对温度参数法进行了改进。首先将温度参数法中引入有限元分析软件,便于工程应用;其次运用NURBS曲面拟合温度场分布,减少了变量数目,便于求解;最后将该方法推广至三维实体。分别选用经典的双向受拉带孔方板及有解析解的受内压厚壁圆筒共3个数值算例,验证了提出方法的可行性。
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