FATIGUE DAMAGE ANALYZER AND FATIGUE DAMAGE ANALYSIS METHOD

摘要

To provide a fatigue damage analyzer with which it is possible to improve the accuracy of numerical analysis of a resin crack symptom.SOLUTION: According to one embodiment of the present invention, a fatigue damage analyzer comprises an analysis unit, a computation unit and a determination unit. The analysis unit finds a von Mises strain at each of a plurality of virtual evaluation points arranged at equal intervals on a drawing in which the cross section of a building is modeled. The computation unit sequentially repeats a first computation process for calculating the number of fatigue cycles until breakage at each evaluation point using the von Mises strain, a second computation process for extracting a minimum evaluation point among the plurality of evaluation points where the number of fatigue cycles is smallest and determining the number of fatigue cycles at the minimum evaluation point as the number of crack growth cycles, and a third computation process for calculating a fatigue damage amount at each evaluation point using the number of crack growth cycles. The determination unit determines on the basis of a preset criterion whether or not to stop the operations of the analysis unit and computation unit.SELECTED DRAWING: Figure 1