Elastic-Plastic Behaviour of a Plate with a Central Hole by Photoelastic Coating Method

N. Matsumoto; S. Ohtaki; M. Ohira; H. Kasayama

doi:10.4028/www.scientific.net/AMM.3-4.27

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Stress Analysis and Identification with Full-Field Measurements
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Knowledge of Service Loads – The Key to Structural Integrity
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Elastic-Plastic Behaviour of a Plate with a Central Hole by Photoelastic Coating Method
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Experimental Application of the Virtual Fields Method to Elasto-Plastic Behaviour
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Elastic-Plastic Stress Analyses by Digital Image Correlation and Nonlinear Hybrid Method
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Thermoelastic Stress Analysis of Nitinol Self-Expanding Stents
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A New Method of Measuring Young's Modulus for Flexible Thin Materials Using a Cantilever
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Tensile Testing of MEMS Materials at High Temperatures
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 3-4Elastic-Plastic Behaviour of a Plate with a...

Elastic-Plastic Behaviour of a Plate with a Central Hole by Photoelastic Coating Method

Abstract:

An application of the elastic-plastic problem by the photoelastic coating method is presented in this paper. A general procedure of this experiment, such as image processing and separation of the difference of principal strain to obtaine stresses from isochromatic fringes is referred. The methodology to extract centre lines of coloured isochromatic fringes is explained. Experiments are conducted with cross-shaped aluminum specimens with a circular hole subjected to uniaxial tension and equi-biaxial tension. Results of image processing are shown, and the distribution of difference of principal strains and separated principal strain are shown in the case of equi-biaxial tension.