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Title: Photoelastic stress analysis using an object step-loading method
Authors: Ng, T.W. 
Issue Date: Jun-1997
Citation: Ng, T.W. (1997-06). Photoelastic stress analysis using an object step-loading method. Experimental Mechanics 37 (2) : 137-141. ScholarBank@NUS Repository.
Abstract: Sensitive, computer-aided retardation phase measurement methods suffer from the problem of discontinuity, which, in turn, hinders faultless phase unwrapping for stress determination in photoelasticity. An object step-loading method is introduced in this paper to overcome such a problem. One advantage of the technique is that the entire loading-to-stress history is computed. In this paper, the theoretical aspects related to implementation of the object step-loading method in computer-aided photoelasticity are outlined, and experimental verification is performed on a birefringent model subjected to compressive loading by comparing stress values with those computed using the theory of elasticity.
Source Title: Experimental Mechanics
ISSN: 00144851
Appears in Collections:Staff Publications

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