Structural free vibration characterization and seismic response were calculated by means of beam-plate linear mathematical model of finite element method.

采用梁、板线性有限元数学模型计算了结构自振特性和地震响应。

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For simply supported annular plate under linear load, the limit load analysis was investigated by applying unified strength theory.

对于线性荷载作用下外简支环板，引入统一强度理论，进行了极限荷载分析。

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The theory of J integral near cack tip in the plate of linear elastic orthotropic composite material are systematically studied in this paper.

本文对线弹性正交异性复合材料单层板裂纹尖端附近的J积分进行了系统的理论研究。

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