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Experimental and 3D FE evaluation of crack initiation energy J1C in Al6061-TiC composites

Experimental and 3D FE evaluation of crack initiation energy J1C in Al6061-TiC composites The test data crack initiation energy in Mode-I fracture, J1C is determined experimentally for various compositions of Al6061-TiC composites by using compact tension (CT) specimen with variable a∕W ratios. Also, 3D nonlinear (elastic-plastic) finite element analysis was carried for Compact Tension (CT) specimen to evaluate J1C, ahead at the crack-front of several Al6061-TiC composite specimens with various crack lengths. The 3D FEA J1C results were compared with the experimental results. The J1C 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Strength, Fracture and Complexity iospress

Experimental and 3D FE evaluation of crack initiation energy J1C in Al6061-TiC composites

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Publisher
IOS Press
Copyright
Copyright © 2018 IOS Press and the authors. All rights reserved
ISSN
1567-2069
eISSN
1875-9262
DOI
10.3233/SFC-180213
Publisher site
See Article on Publisher Site

Abstract

The test data crack initiation energy in Mode-I fracture, J1C is determined experimentally for various compositions of Al6061-TiC composites by using compact tension (CT) specimen with variable a∕W ratios. Also, 3D nonlinear (elastic-plastic) finite element analysis was carried for Compact Tension (CT) specimen to evaluate J1C, ahead at the crack-front of several Al6061-TiC composite specimens with various crack lengths. The 3D FEA J1C results were compared with the experimental results. The J1C 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.

Journal

Strength, Fracture and Complexityiospress

Published: Jan 1, 2018

References