首页|Modified Intelligent Hybrid Technique Reducing Experimental Error over the Entire Target Area
Modified Intelligent Hybrid Technique Reducing Experimental Error over the Entire Target Area
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NSTL
The intelligent hybrid technique proposed by Nishioka et al. can be used to analyze stress intensity factors from displacement data obtained by experiments with high accuracy and reliability, However, the hybrid technique suffers from inevitable error and noise involved in extracting displacement fields from the boundary experimentally the boundary obtained experimentally. In this paper, a modified intelligent hybrid technique is developed to improve the shortcomings of the current technique. The proposed hybrid technique reduces the influence of experimental errors not only on/along the boundary but also inside the target area. Taking the Saint-Venant principle and the results of test simulations into account, the effectiveness of the proposed hybrid technique is discussed. Then, applying the proposed hybrid technique to the plate with a hole under tensile loading, the distribution of strain, stress, and displacement over the entire target area is calculated with high accuracy and reliability.
Hybrid techniqueDigital image correlationFEMExperimental strain and stress analysis
M. Fujikawa、M. Takashi
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2005
Proceedings of the Society for Experimental Mechanics
NSTL
