SPECIAL ISSUE CONTRIBUTION
A new fixture for fracture tests under mixed mode I/II/III loading
Nima Razavi,
Filippo Berto,
Corresponding Author
Nima Razavi
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, Trondheim, 7491 Norway
Correspondence
Nima Razavi, Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, Trondheim 7491, Norway.
Email: [email protected]
Search for more papers by this authorFilippo Berto
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, Trondheim, 7491 Norway
Search for more papers by this authorNima Razavi,
Filippo Berto,
Corresponding Author
Nima Razavi
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, Trondheim, 7491 Norway
Correspondence
Nima Razavi, Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, Trondheim 7491, Norway.
Email: [email protected]
Search for more papers by this authorFilippo Berto
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, Trondheim, 7491 Norway
Search for more papers by this authorAbstract
In this paper, a new loading device for general mixed mode I/II/III fracture tests is designed and recommended. Finite element analyses are conducted on the proposed apparatus to evaluate the fracture parameters of the tested samples under various mixed mode loading conditions. The numerical results revealed that the designed loading fixture can generate wide varieties of mode mixities from pure tensile mode to pure in-plane and out-of-plane shear modes. The accuracy of the proposed fixture is evaluated by conducting a wide range of fracture tests on compact tension shear (CTS) specimens made of polymethyl methacrylate (PMMA). The experimental results are then compared with the theoretical predictions obtained by the Richard criterion. A good consistency is observed between the experimental results and theoretical predictions.
CONFLICT OF INTEREST
The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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