Considering the combination of photoelasticity with soil mechanics, the new loading method of model and the special calculation formula of model stress are applied.
将光弹性力学与土力学相结合，对加载方法和模型应力的换算进行了新的探讨。
Methods The stress distribution and displacement of abutment were studied and analyzed by means of three-dimensional finite element when different loading was applied.
方法：用三维有限元法研究天然牙及中间种植体受力后的应力分布特点及位移规律。
Numeral results show that, under shear loading conditions, the stress intensity factor is independent of applied electric displacement and electric field.
结果表明，在外加剪切荷载的作用下，应力强度因子与外加电场无关。
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