A study of residual stress field in whisker reinforced metallic composite by using 3-D FEM |
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Authors: | Li Xue-bin Zou Hua-min Zhao Chun Su Chao |
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Institution: | (1) Department of Physics, Wuhan University, 430072 Wuhan, China |
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Abstract: | Thermal residual stress/strain field in the vicinity of interface in the thin foil specimen of a whisker reinforced metallic
composite was studied with 3-dimensional finite element method (3-D FEM) for the first time. The stress/strain distribution
across the interface between the whisker and the matrix shows that the thermal stress/strain field in the matrix extends to
a large area from the interface. The effect of surface relaxation on the strain/stress was investigated. The displacement
field calculated with 3-D FEM was used in the simulation of LACBED pattern. Good fit was found between the simulated pattern
and the experimental one.
Foundation item: Supported by the National Natural Science Foundation of China (59471070)
Biography: Li Xue-bin (1975-), male, Master candidate, Research direction: materials physics. |
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Keywords: | finite element method composite interface elastic relaxation |
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