WIT Press


Dynamic Stress Intensity Factors In Mixed-mode: Time-domain Formulation

Price

Free (open access)

Paper DOI

10.2495/BE940561

Volume

7

Pages

8

Published

1994

Size

664 kb

Author(s)

P. Fedelinski, M.H. Aliabadi & D.P. Rooke

Abstract

- The dual boundary element method (DBEM) and the time domain method are applied for the determination of dynamic stress intensity factors (DSIF) for a general mixed-mode crack problem. The DBEM generates a distinct set of boundary integral equations by applying the displacement equation to one of the crack surfaces and the traction equation to the other. The temporal varia- tions of the boundary quantities are either piecewise constant or piecewise linear. The boundary of the body is divided into quadratic elements and quarter-point elements (QPE) are used near the crack tips. The DSIF are calculated using two methods: the crack opening displacements with a least-square error mi

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