A damage model for void configuration and failure under different constrained deformation regions in ductile matrix |
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| Authors: | M Kikuchi M Geni |
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| Affiliation: | (1) School of Engineering Systems, Queensland University of Technology, Brisbane, QLD, 4001, Australia;(2) Centre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering, J07, The University of Sydney, Sydney, NSW, 2006, Australia;(3) Department of Mechanical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands;(4) Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan |
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| Abstract: | The constraint effects of SiC particle volume fractions and their specimen geometry are analyzed by conducting tensile tests while changing the SiC particle volume fraction 0%, 2% and 10% and the tensile specimen notch radius 0.5, 1.0, 2.0, 4.0, 8.0 and 16.0 mm. The effect of constraint on the void configuration and coalescence are investigated experimentally using 3-dimensional SEM fracture surface observations and 3-dimensional image analysis. It was found that the final void volume fraction and void shape were greatly affected by stress triaxiality and deformation constraint. |
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