Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
770367 | Engineering Fracture Mechanics | 2016 | 18 Pages |
Abstract
Mixed-Mode Bending tests are performed on spruce specimens for several mixed mode ratios and are completed by pure mode I (DCB) and pure mode II (ENF) fracture tests. For each test, the mixed mode resistance to crack growth and those relative to its mode I and mode II components are estimated. The separation of the fracture modes is estimated from an analytical formulation and verified from the invariant MθMθ-integral method. A mixed mode fracture criterion applicable to the overall R-curve (i.e., rising part and plateau regime) is then proposed and allows describing the mixed mode resistance with a reasonable accuracy.
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Authors
Ngoc Anh Phan, Stéphane Morel, Myriam Chaplain,