A computer program of isoparametric finite element for large elastis-plastis strain was used to calculate the displacement-strain fields of a ho-mogeneous expansive sphere in many-layer medium.The effects of the soft layer on diaplacement-strain fields and precurson of earthquakes were stu-died.Finally,we discussed the problem of obvious seismo-precurson layer.
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汤泉,钱家栋.不同弹塑性介质中均匀膨胀球的有限元分析及其应用[J].地震工程学报,1982,4(4):81-88. Tang Quan, Qian Jiadong. FINITE ELEMENT ANALYSIS OF HOMOGENEOUS EXPANSIVE SPHERE IN MANY-LAYER MEDIUM[J]. China Earthquake Engineering Journal,1982,4(4):81-88.