Experimental evaluation of contour J integral and energy dissipated in the fracture process zone

0429021 - ÚTAM 2015 RIV GB eng J - Článek v odborném periodiku
Vavřík, Daniel - Jandejsek, Ivan
Experimental evaluation of contour J integral and energy dissipated in the fracture process zone.
Engineering Fracture Mechanics. Roč. 129, October (2014), s. 14-25. ISSN 0013-7944. E-ISSN 1873-7315
Grant CEP: GA MŠMT(CZ) ED1.1.00/02.0060; GA ČR(CZ) GBP105/12/G059
Institucionální podpora: RVO:68378297
Klíčová slova: experimental stress analysis * thin wall material * cohesive zone * J integral * fracture process zone
Kód oboru RIV: JN - Stavebnictví
Impakt faktor: 1.767, rok: 2014
http://www.sciencedirect.com/science/article/pii/S0013794414000988

The fracture mechanics of ductile thin wall is different from that of thick wall materials which is standardly used in fracture mechanics testing. An appropriate determination of the fracture toughness of thin wall materials can be provided by the direct calculation of the contour J integral. The experimental evaluation of the energy dissipated by the fracture process zone and the newly developed crack is even more fundamental. For related calculations, knowledge of several physical quantities is necessary such as crack path and processing zone shape, strain–stress field and plastic deformation evolution. Several experimental methods in conjunction with numerical post-processing were employed.
Trvalý link: http://hdl.handle.net/11104/0238153