Comparison of simplified methods of dynamic stress intensity factor evaluation

Numerical methods of determination of the dynamic stress intensity factor based on modal decomposition are considered. These methods are introduced to processing impact bending tests data in order to replace conventional but controversial quasi-static methodology. The influence of type of bend specimen model and method of determination of the model parameters on accuracy of the solution is investigated. Numerical results are compared with one- and three-point bending tests data reported in the literature.