Transactions of Materials and Heat Treatment

Title：Rapid prediction on material transfer across deformation zones for multirib component under isothermal

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ClassificationCode：TG156

year,vol(issue):pagenumber：2023,48(10):8-15

Abstract：

Aiming at the inherent cross-area material transfer and the possible folding problem of multi-rib components in the isothermal local loading process, a method for quickly predicting the material transfer volume was proposed. Firstly, the geometric feature structure of transition zone under the local loading was extracted, and the equal thickness blank with a simple shape was designed to reflect the cross-area material transfer characteristics in detail. Secondly, the local loading forming process of multi-rib components was analyzed by finite element simulation and physical simulation experiments. Then, according to the material flow characteristics and stress state of material in the transition zone, the material in the loading zone was divided into three regions, and according to the force balance condition of equal size and opposite direction, the force analysis on the elementary bodies in these three zones was performed. Furthermore, the prediction model of neutral layer position and material transfer volume was obtained by the force equilibrium equation, yield equation and boundary conditions to solve the equation. Finally, the finite element analysis results were compared with the results of the prediction model to verify the rationality and reliability of the prediction results.

Funds：

国家自然科学基金资助项目（52005241）；国家留学基金委项目（202208360107）；江西省研究生创新专项资金项目（YC2021-S673）

唐海兵（1996-），男，硕士研究生 E-mail：tanghaibingcmh@163.com

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