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.
A fracture mechanics analysis of the double cleavage drilled compression test specimen
Bruchmechanische Analyse der DCDC-Probe
Engineering Fracture Mechanics ; 76 , 7 ; 921-934
2009
14 Seiten, 30 Quellen
Article (Journal)
English
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