Abstract
In the mixed mode fracture toughness tests, the use of a modified compact tension specimen has enabled the testing of materials under a variety of combinations of mode I and mode III loadings. By using appropriately defined mixed-mode versions of the stress intensity factor K and the J integral, the susceptibility of these materials to mixed-mode fracture can be quantified. In addition to compact tension specimens, three point bend specimens with a inclined crack can also be used to determine the mixed-mode fracture behavior of materials. The aim of the present study was to study the feasibility of extending the mixed mode fracture concept to impact testing using a charpy type test specimen.
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