For simplification of analysis, we may take the elastic regions as substructures and analyzed separately, then make a coupled analysis with the non-linear zones.
为简化分析工作，可将弹性域作为子结构，另行分析，然后再与非线性域进行耦合分析。
Based on the elastic-plastic dynamic model of the thin-wall structure aqueduct, the non-linear earthquake response analysis is presented.
运用渡槽薄壁结构弹塑性动力分析模型，开展了渡槽非线性地震响应分析计算。
The non-classic boundary condition of the elastic instability has been educed by the energy functional variation analysis. So a criterion equation of the elastic instability can be got.
利用能量泛函变分的方法导出了发生弹性失稳的非经典边界条件，得到了失稳的判据方程。
Because of using the fundamental solutions of layered elastic solids, the proposed method can be used for analysis of the pile-foundation interaction in non-homogeneous soil.
建立桩身单元的位移应力方程时，采用压缩杆理论；建立土体界面单元方程时，采用层状材料基本解。
Because of using the fundamental solutions of layered elastic solids, the proposed method can be used for analysis of the pile-foundation interaction in non-homogeneous soil.
建立桩身单元的位移应力方程时，采用压缩杆理论；建立土体界面单元方程时，采用层状材料基本解。
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