According to the relation of fracture toughness and stress intensity factor, the cracking similaritycondition of induced joint in structural model is established.
根据断裂韧度和应力强度因子的关系，建立了结构模型中诱导缝的开裂相似条件。
2
Based on similarity theory of the physical model, the similaritycondition of the current movement in the tidal estuary was deduced from the 2D shallow water equations.
基于河工模型的相似理论，从二维浅水方程推导出潮汐河口水流运动的相似条件。
3
The relation between displacement of prototype and that of model if derived for the linear elastic body at its body force condition of self-weight based on the similarity theory.