弹性模量是塑性混凝土的一项重要力学性能指标。
The elastic modulus is one important mechanical performance index of plastic concrete.
利用界面应力剪滞理论，分别建立弹性区和塑性区的界面力学基本方程。
By employing the shear lag theory, the basic equations of interfacial mechanics for the elastic zone and the plastic zone are established respectively.
以二维弹性力学自然边界积分方程法为基础建立了二维弹塑性问题的自然边界积分方程。
Based on the natural boundary integral equation for two dimensional elasticity, a corresponding elastoplastic formulation is presented in this paper.
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