Trying to operate beyond the limiting intensity would create unwanted nonlinear effects in components of the laser, impairing the beam quality and even damaging the components. 如果尝试在极限强度之上运转，雷射元件便会产生不当的非线性效应，轻微则降低光束品质，严重甚至会损坏元件。
The effect of the crack eccentricity ratio on the stress intensity factor and the ultimate tensile strength for cracked ductile plates was investigated in this paper. 摘要疲劳裂纹对船舶结构强度具有不可忽视的削弱作用，在过去的研究中，主要从断裂力学的角度对疲劳裂纹应力场进行分析，而对于静态裂纹板的极限强度的探讨相对较少。
