한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)
- 제16권9호
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- Pages.89-95
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- 1999
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
유한요소법과 상계법에 의한 반용융 재료의 항복거동 연구
Study on Yield Behavior of Semi-Solid Material by Finite Element Method and Upper-Bound Method
- 발행 : 1999.09.01
초록
The compression behavior of semi-solid materials in studied from a viewpoint of yield criteria and analysis methods. To describe the behavior of materials in semi-solid state, several theories have been proposed by extending the concept of plasticity of porous compressible materials. in the present work, the upper-bound method and the finite element method are used to model the simple compression process using yield criteria of Kuhn and Doraivelu. Segregation between solid and liquid which cause defect of product is analysed for Sn-15%Pb alloy is compared with the experimental result of Charreyron et al..
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