| Interval Analysis of the Finite Element Method for Stochastic Structures |
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| 作者姓名： | 刘长虹 刘筱玲 陈虬 |
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| 作者单位： | Department of Applied mechanics and engineering，Department of Applied mechanics and engineering，Department of Applied mechanics and engineering Southwest Jiaotong University，Chengdu 610031，China，Southwest Jiaotong University，Chengdu 610031，China，Southwest Jiaotong University，Chengdu 610031，China |
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| 基金项目： | TheNationalNaturalScienceandChinesePhysicsResearchInstituteFoundationofChina (No .10 0 76 0 14 )andtheSWJTUFoundation (No .2 0 0 2B0 8) . |
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| 摘 要： | A random parameter can be transformed into an interval number in the structural analysis with the concept of the confidence interval．Hence，analyses of uncertain structural systems Can be used in the traditional FEM software．In some cases，the amount of solutions in stochastic structures is nearly as many as that in the traditional structural problems．In addition，a new method to evaluate the failure probability of structures is presented for the needs of the modern engineering design．
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| 关 键 词： | 有限元理论 随机结构 随机参数 差异性分析 工程设计 |
Interval Analysis of the Finite Element Method for Stochastic Structures |
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| Liu Changhong Liu XiaolingChen Qiu.Interval Analysis of the Finite Element Method for Stochastic Structures[J].Journal of Southwest Jiaotong University,2004,12(1):46-48. |
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| Authors: | Liu Changhong Liu XiaolingChen Qiu |
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| Institution: | Department of Applied mechanics and engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | A random parameter can be transformed into an interval number in the structural analysis with the concept of the confidence interval. Hence, analyses of uncertain structural systems can be used in the traditional FEM software. In some cases, the amount of solutions in stochastic structures is nearly as many as that in the traditional structural problems. In addition, a new method to evaluate the failure probability of structures is presented for the needs of the modern engineering design. |
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| Keywords: | Finite element method Random Confidence interval Stochastic structure Mechanics |
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