If probability density functions of stress and strength are definite, stressstrengthinterferencemodel can be used to calculate reliability using formulation or numerical value integration.
应力、强度概率密度函数确定可采用应力-强度干涉模型，用公式或数值积分求可靠度。
2
Then, the complex integral calculation problem in the reliability model of stress and strengthinterference was simplified by using the Monte Carlo Simulation Method.
其次，采用应力与强度干涉模型和蒙特卡罗模拟法，解决了可靠度计算公式中复杂积分的计算问题。
3
Impact stress and impact strain are solved by energy method. Stress - strengthinterferencemodel can be used to impact investigation. Reliability design of impact has been studied.