Article ID Journal Published Year Pages File Type
771106 Engineering Fracture Mechanics 2009 14 Pages PDF
Abstract

The “double cleavage drilled compression” specimen is used for the determination of crack growth rates under mode-I and general mixed-mode loading conditions. In this paper, a fracture mechanics analysis is presented for the DCDC specimen, using a finite-element analysis to determine stresses, strains and surface displacements. Weight functions are derived, and the consequence of load misalignment is demonstrated. Finally, side-surface displacements at the crack terminating region are studied using a 3-dimensional, finite-element computation in combination with results from the literature that are based on an ‘‘asymptotic analysis”. Calculated side-surface displacements in the vicinity of the crack tip are found to agree with published values obtained by others via measurements using the atomic force microscope.

Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
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