An energy method for determining fracture toughness of fibrous composite laminates was based on the theory of elastic energy release rate and crack-growth resistance in this paper.
应用线弹性断裂力学的弹性能释放率及裂纹扩展阻力等基本概念和理论，建立起确定纤维增强高分子聚合物复合材料断裂韧性的能量方法。
What's more, modification is made based on normal elastic ground resistance method and a rigid matrix for elastic ground beam element is detruded.
另外，本文对现有常规的弹性抗力法作了一定的改进，推导出了一种能更好考虑桩土相互作用的弹性地基梁单元刚度矩阵。
The interaction of some buildings is prescribed in code for seismic resistance by decreasing the shear force and the story displacement, while the decreasing method is based on the elastic conditions.
抗震规范在考虑结构相互作用时规定，剪力和层间位移可以进行折减。
The interaction of some buildings is prescribed in code for seismic resistance by decreasing the shear force and the story displacement, while the decreasing method is based on the elastic conditions.
抗震规范在考虑结构相互作用时规定，剪力和层间位移可以进行折减。
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