Creep-damage processes in notched specimens subjected to static and periodic loading are studied experimentally. Subsequent simulations were carried out using Rabotnov evolution equation. In case of dynamic creep (fast periodic loading) the constitutive equations derived by use of asymptotic and averaging methods were used. Numerical results were obtained by the combination of FEM and predictor-corrector time integration scheme. Fracture process was studied using designed numerical procedure based on the elimination of the finite elements with critical values of damage parameter. The fracture times and directions of the crack propagation were determined. The qualitative difference between processes of crack propagation in cases of static and periodic loading were observed.

实验研究了缺口试样在静态和周期性载荷下的蠕变损伤过程。随后的仿真使用Rabotnov演化方程式进行。在动态蠕变（快速周期性载荷）的情况下，使用通过渐近和求平均方法导出的本构方程。通过有限元法和预测器-校正器时间积分方案的组合获得了数值结果。基于消除具有损伤参数临界值的有限元，使用设计的数值程序研究了断裂过程。确定了断裂时间和裂纹扩展的方向。观察到在静态和周期性载荷情况下裂纹扩展过程之间的质量差异。