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http://dx.doi.org/10.3795/KSME-A.2010.34.9.1287

Analysis of Photoelastic Stress Field Around Inclined Crack Tip by Using Hybrid Technique  

Chen, Lei (Dept. of Mechanical Engineering, Kunsan Nat'l Univ.)
Seo, Jin (Dept. of Mechanical Engineering, Kunsan Nat'l Univ.)
Lee, Byung-Hee (Dept. of Mechanical Engineering, Kunsan Nat'l Univ.)
Kim, Myung-Soo (Dept. of Electronics, Kunsan Nat'l Univ.)
Baek, Tae-Hyun (Dept. of Mechanical Engineering, Kunsan Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.34, no.9, 2010 , pp. 1287-1292 More about this Journal
Abstract
In this paper, a hybrid technique is presented. First, the isochromatic fringe data of a given set of points are calculated by the finite element method and are used as input data in complex variable formulations. Then the numerical model of the specimen with a central inclined crack is transformed from the physical plane to the complex plane by conformal mapping. The stress field is analyzed and the mixed-mode stress intensity factors are calculated for this complex plane. The stress intensity factors are calculated by the finite element method as well as by a theoretical method and compared with each other. In order to conveniently compare these values with each other, both actual and regenerated photoelastic fringe patterns are multiplied by a factor of two and sharpened by digital image processing.
Keywords
Photoelasticity; Hybrid Method; Conformal Mapping; Isochromatic Fringe; Least Squares Method;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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