%0 Journal Article
%T The simulation of activities of bend fault<br>几何弯曲断层活动性的模拟
%A XUE Ting-Xiao
%A FU Rong-Shan
%A LIN Feng
%A <br>薛霆虓
%A 傅容珊
%A 林峰
%J 地球物理学报
%D 2009
%I 
%X Using finite element method (FEM) with contact algorithm, we established a 2D bend fault model and calculated the activities of this fault in thousands of years, and discussed how the geometry bending affects the activities. Due to the effect of geometry bending, stress concentrates on some parts of fault and the distribution of stress on fault is highly heterogeneous. Additionally, geometry bending restrains or stops some ruptures, but can produce strong earthquakes. Compared with planar fault, bend fault can not only affect earthquake ruptures and slip, but also change temporal and spacial evolution of earthquakes. Because of the heterogeneous stress distribution of bend fault, some foreshocks occurred before main shock, but not occurred on planar fault. The earthquake frequency-size distribution of simulation result deviates from the G-R relation, showing that a characteristic model is more reasonable, especially, characteristic slip can be seen from result distinctly.
%K Geometry bend fault
%K FEM
%K Activities of fault
%K Simulation<br>几何弯曲断层
%K 有限元
%K 断层活动性
%K 数值模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=57E8052E2807DF1D65CF250CE2DC9400&yid=DE12191FBD62783C&vid=286FB2D22CF8D013&iid=F3090AE9B60B7ED1&sid=2C9CF52C913FA2D8&eid=4D7D2903CFD5410A&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=0&reference_num=55