Conclusions:This model may be applied for the study of morphologic characteristics and changes induced by growth, orthodontic treatment and orthognathic operation on middle sagittal plane.
结论：该模型可用于颅颌面硬组织在正中矢状面上的形态特征及因生长、正畸矫治、正颌手术引起的形态变化研究。
Shear band formation due to void nucleation and growth were successfully simulated in a specimen of geomaterial under plane stress compression and tension by the model respectively.
采用该模型，成功地对平面应力条件下岩土材料单轴受压和单轴受拉试件的局部化破坏分别进行了数值模拟。
The relationship of crack growth rate between lateral notch specimen and plane plate specimen was studied in this paper. A formula for the relationship was established.
主要研究侧槽试样与平板试样裂纹扩展速率之间的关系，并建立了两者关系的效学表达式。
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