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Mechanics of Advanced Materials and Structures Volume 21, 2014 - Issue 8
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Original Articles

Study the Effect of Architectural Modification on Fracture Behavior of Al-DRA Composite

M. JamaliDepartment of Materials Science & Engineering, Sharif University of Technology, Tehran, Iran
,
S. KhaliliDepartment of Materials Science & Engineering, Sharif University of Technology, Tehran, Iran
,
R. BagheriDepartment of Materials Science & Engineering, Sharif University of Technology, Tehran, IranCorrespondence[email protected]
&
A. SimchiDepartment of Materials Science & Engineering, Sharif University of Technology, Tehran, Iran;Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
Pages 662-668 | Received 17 May 2011, Accepted 04 Sep 2011, Published online: 29 Apr 2014
 
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Abstract

An architectural modification method was utilized to improve fracture toughness of discontinuously reinforced aluminum (DRA) composites. Al-DRA composites having a structure similar to that of reinforced concrete were fabricated. The number of reinforcing DRA rods within Al matrix and volume fraction of SiC particles in DRA were altered to evaluate their effect on fracture behavior of these materials. It was found that architectural modification does not have any destructive influence on elastic modulus and yield strength of the composite. Moreover, the success of this method on toughness improvement strongly depends on the occurrence of debonding between Al and DRA regions upon loading.

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