Several Hundred Finite Element Analyses of an Inversion of Earthquake Fault Slip Distribution using a High-fidelity Model of the Crustal Structure
Several Hundred Finite Element Analyses of an Inversion of Earthquake Fault Slip Distribution using a High-fidelity Model of the Crustal Structure
复制标题
使用高保真地壳结构模型反演地震断层滑移分布的数百个有限元分析
DOI：
10.1016/j.procs.2014.05.079
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
M. Hori
中科院分区：
文献类型：
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作者：
R. Agata;T. Ichimura;K. Hirahara;M. Hyodo;T. Hori;M. Hori
为了提高地震断层滑动分布反演分析的精度，我们利用基于容量计算的108自由度地壳结构有限元模型，高效地进行了数百次分析。我们为这些大型有限元模型开发了一种网格划分方法和一种高效的计算方法，这些方法专门用于问题设置。我们将该模型应用于 2011 年东北大地震同震断层滑动分布的反演分析。与现有的计算方法相比，我们模型的高分辨率显着提高了模拟结果的保真度。
To improve the accuracy of inverse analysis of earthquake fault slip distribution, we performed several hundred analyses using a 108-degree-of-freedom finite element (FE) model of the crustal structure in an efficient way based on capacity computing. we developed a meshing method and an efficient computational method for these large FE models, which methods are specialized for the problem setting. We applied the model to the inverse analysis of coseismic fault slip distribution for the 2011 Tohoku-oki Earthquake. The high resolution of our model provided a significant improvement of the fidelity of the simulation results compared to existing computational approaches.