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There is a remarkable difference in stress distribution between a specimen and a plate removed from the specimen. The plate presents a uniform stress distribution whereas the specimen presents a non-uniform stress distribution. Firstly, the real stress distributions in plates with thickness of 30, 40 and 50 mm and then in the specimens were obtained through simulation and X-ray surface stress measurement...
According to the distributing characteristic of residual stresses in aluminum alloy plate, this paper adopted modified layer removal method (MLRM) to measure it; based on elastic mechanics theory the solving process was deduced. Using finite element method the process of MLRM was simulated, by loading specimen with a known original stress distribution the stress was worked out with strain datum from...
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