| 王建民,陈龙珠,徐格宁.结构失效模式识别中失效元漂移问题的分析[J].计算力学学报,2003,20(5):611~615 |
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| 结构失效模式识别中失效元漂移问题的分析 |
| Analysis of failure element drift in structural failure mode identification |
| 修订日期：2002-04-29 |
| DOI：10.7511/jslx20035117 |
| 中文关键词: 结构分析 失效模式识别 失效元漂移 有限元重分析 可靠性分析 应力漂移 增量载荷法 |
| 英文关键词:frame structure,failure mode,incremental loading method,finite element method,stress drift |
| 基金项目: |
| 王建民 陈龙珠 徐格宁 |
| [1]上海交通大学建筑工程与力学学院，上海200030 [2]太原重型机械学院，山西太原030024 |
| 摘要点击次数: 1519 |
| 全文下载次数: 8 |
| 中文摘要: |
| 基于有限元重分析技术，考虑载荷对结构的综合影响，从失效元漂移问题和结构极限承载能力角度出发，对结构可靠性分析中，增量载荷法的加载方式进行了分析和改进，并通过有限元程序进行了对比验证，文后提供了算例。结果表明，改进后的分析方法具有更广泛的应用性，其分析结果具有满意的精确度和良好的稳定性，更适合于实际工程中大型结构系统在多种载荷共同作用下的可靠性失效模式分析。 |
| 英文摘要: |
| Considering the synthetic influence of various kinds of loads upon the structures, and from the viewpoints of failure element shift and limit loaded capability, an improvement for the loading form in the original incremental loading method applied in structural reliability analysis has been proposed with the finite element reanalysis technique. In addition, a comparative verification has been made from several numerical examples. The results obtained indicate that the improved incremental loading method has satisfactory accuracy and stability, which can be applied to the reliability analysis of failure modes in the practcal large scale engineering structure system under various kinds of loads. |
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