Experimental and 3D FE evaluation of crack initiation energy J 1C in Al6061-TiC composites
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Date
2018
Authors
Raviraj, M.S.
Sharanaprabhu, C.M.
Mohankumar, G.C.
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Abstract
The test data crack initiation energy in Mode-I fracture, J 1C is determined experimentally for various compositions of Al6061-TiC composites by using compact tension (CT) specimen with variable aW ratios. Also, 3D nonlinear (elastic-plastic) finite element analysis was carried for Compact Tension (CT) specimen to evaluate J 1C, ahead at the crack-front of several Al6061-TiC composite specimens with various crack lengths. The 3D FEA J 1C results were compared with the experimental results. The J 1C values decrease with increasing crack length of the specimen because of decrease in load carrying capacity of the specimens. Al6061-TiC composites exhibit higher fracture toughness values than their counterparts Al-SiC composites. 2018 IOS Press and the authors. All rights reserved.
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Strength, Fracture and Complexity, 2018, Vol.11, 1, pp.63-72