Fatigue crack growth assessments in welded components including crack closure effects: Experiments and 3-D numerical modeling

Prediction of Fatigue Crack Growth in Metallic Specimens under Constant Amplitude Loading Using Virtual Crack Closure and Forman Model

“…Good correlation of crack growth curve with available experimental data was determined for both test cases. For test case 3, data for crack size vs. the number of cycles, calculated with numerical procedure implemented in program VC-CGrow, was compared to experimental data available from the article by Sarzosa et al [30]. Good correlation with experimental data can also be seen in this case (Figure 13).…”

“…The first test case refers to the single edge cracked plate made of aluminum alloy 2024-T3 (test case 1) [27]. Second test case was middle tension specimen (M(T)), [28], made of martensitic structural steel 18G2A (Steel 1.0562, S355) [29] and third was compact tension specimen (C(T)), [28], made of welded pressure vessel steel A516 Grade 70 (Steel 1.0473, P355GH) with 45% overmatch weld [30]. All data regarding materials used in the preparation of test cases are presented in Table 1.…”

“…Final FE meshes used in crack propagation tests are shown in Figure 8. In the end, results obtained from the numerical procedure integrated into the program VC-CGrow were compared with experimental data available in the literature [27,29,30].…”

Methods Of Prediction Of Subcritical Fracture Of Structural Materials Under The Impact Of Cyclic Loads (review)

“…Одним из путей дальнейшего развития научных основ аналитического прогнозирования усталостного ДР является объединение предположений существующих моделей для создания комплексных и гибридных теорий. Это позволило рассматривать задачи термоусталости [65], усталости при ползучести [66,67], фреттинг усталости [68], учесть эффекты закрытия трещин в результате циклического усталостного нагружения [69,70].…”