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首页> 外文会议>World foundry congress >DYNAMIC MEASUREMENT AND FEM ANALYSIS OF RESTRAINT FORCE FROM MOLD ON GRAY CAST IRON CASTINGS AND CONTRACTION OF CASTINGS DURING COOLING IN GREEN SAND MOLD
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DYNAMIC MEASUREMENT AND FEM ANALYSIS OF RESTRAINT FORCE FROM MOLD ON GRAY CAST IRON CASTINGS AND CONTRACTION OF CASTINGS DURING COOLING IN GREEN SAND MOLD

机译：灰铸铁铸件中铸型的回缩力动态测量与有限元分析及冷却过程中铸件的压缩率

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摘要

We measured the restraint force from sand mold and the contraction of casting in green sand mold continuously. In thermal stress analysis, elasto-plastic creep model was used for constitutive equation of casting and elasto-plastic model (von-Mises model) was used for constitutive equation of sand mold. Mechanical properties are estimated by the inverse analysis from measurement. Then, we evaluated the analysis precision by comparing measurement and analysis continuously that has not performed yet. Analysis results were successfully estimated at the final contraction within +8% error.
机译：我们连续测量了砂模的约束力和生砂模中铸件的收缩。在热应力分析中，弹塑性蠕变模型用于铸件本构方程，弹塑性模型（von-Mises模型）用于砂模本构方程。通过测量的逆分析来估计机械性能。然后，我们通过连续比较尚未执行的测量和分析来评估分析精度。在最终收缩时，成功地将分析结果估计为误差在8％以内。

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