Experimental Evaluation of the Plastic Zone at Crack Tip by Caustics
B.G. Badalouka*, G.A. Papadopoulos*
Identifiers and Pagination:Year: 2012
First Page: 83
Last Page: 89
Publisher Id: TOMEJ-6-83
Article History:Received Date: 06/01/2012
Revision Received Date: 13/04/2012
Acceptance Date: 19/04/2012
Electronic publication date: 4/5/2012
Collection year: 2012
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The study of this paper was to determine the plastic zone dimension at the crack tip by the experimental method of caustics. The caustics shape at the crack tip depends on plastic zone which is small for brittle materials and large for ductile ones. The plastic zone dimensions depends on the crack length, the plates thickness and the loading level. The experimental method of caustics is an excellent tool for the plasticity and stress intensity factors evaluation of loaded cracked structures.