Fundamental formulation for transformation toughening |
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Authors: | Lifeng Ma |
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Institution: | S&V Lab, Department of Engineering Mechanics, Xi’an Jiaotong University, 710049, China |
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Abstract: | In this paper, the transformation toughening problem is addressed in the framework of plane strain. The fundamental solution for a transformed strain nucleus located in an infinite plane is derived first. With this solution, the transformed inclusion problems are formulated by a Green’s function method, and the interaction of a crack tip with a single transformation source is found. On the basis of this solution, the fundamental formulations for toughening arising from martensitic and ferroelastic transformation are formulated also using the Green’s function method. Finally, some examples are provided to demonstrate the validity and relevance of the fundamental formulations proposed in the paper. |
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