首页> 外文会议>International PhD Symposium in Civil Engineering vol.2; 20040616-19; Delft(NL) >Modeling statistical size effect in concrete by the extreme value theory
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Modeling statistical size effect in concrete by the extreme value theory

机译:用极值理论对混凝土中的统计尺寸效应建模

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摘要

The paper analyzes various modeling alternatives for the statistical size effect in quasibrittle structures. The problematic feature of stochastic finite element method: how to capture the statistical part of the size effect phenomenon for structures of very large structures is tackled. The idea is to emulate the recursive stability property from which the Weibull extreme value distribution is derived. The feasibility of proposed approach is demonstrated on the crack initiation problem and predictions are compared with the existing test data.
机译:本文分析了准脆性结构中统计尺寸效应的各种建模方法。随机有限元方法的问题特征是:如何捕获非常大结构的尺寸效应现象的统计部分。这个想法是模拟递归稳定性属性,从中得出威布尔极值分布。在裂纹萌生问题上证明了该方法的可行性,并将预测结果与现有的测试数据进行了比较。

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