rkr

Construction of RKR Potential Energy Curves for SnO Molecule

SnO分子的RKR势能曲线的计算

互联网摘选

The results show that there is a minimum distance from the cleavage to the precrack tip within which there are only micro-cavities instead of micro-cracks due to lower triaxiality of stress, and that the characteristic distance in RKR model does not exist.

结果表明，解理点距裂尖存在一个最小距离，在此距离内三轴应力度过低，仅能形成微孔而不能形成解理微裂纹，RKR模型中表述的特征距离并不存在。

互联网摘选

Dynamic stress intensity factor impulse response curves are obtained. The dynamic initial fracture time, tf, can be received by RKR local stress fracture criterion. The material dynamic fracture toughness is successfully obtained from numerical simulation.

起裂时问通过RKR局部应力断裂准则获得，结合计算得到的动态应力强度因子冲击响应曲线，最终得到材料动态断裂韧性，并验证了其有效性。

互联网摘选

The EGM potential can give reliable potential data at the molecular asymptote and the dissociation region where the RKR results may not be available. There were no effective prevention and treatment methods at present.

而且在分子渐近区和分子离解区域，ECM方法还能得到RKR可能缺乏的可靠物理数据。

互联网摘选

According to the RKR theory, the fairly accurate small-signal gain in the CO-Laser operating is calculated using the numerical method in this paper.

本文根据RKR理论，彩用数值方法比较精确地计算了一氧化碳分子激光器的小信号增益系数。

互联网摘选

Making use of J-A_2 three-term solution characterizing the crack-tip stress field of elastic-plastic material combining with RKR cleavage model, three equations are given by matching the different crack-tip fields.

本文采用弹塑性裂纹尖端应力场的J-A2三项解描述裂纹尖端的约束效应，并对材料的微观断裂机理和弹塑性裂纹扩展的过程做了分析；

互联网摘选