Transactions of Materials and Heat Treatment

Title：Finite element dynamic explicit method in ironing process simulation

Authors： XU Jiang-ping LIU Yu-qi ZHANG Zhi-bing DU Ting(State Key Laboratory of Material Forming and Die and Mould Technology Huazhong University of Science and Technology Wuhan 430074 China)

Unit：

KeyWords： hexahedral element one-point integration hourglass control ironing process dynamic explicit algorithm

ClassificationCode：TG386

year,vol(issue):pagenumber：2008,33(5):38-43

Abstract：

An 8-node hexahedral element finite element dynamic explicit program,combining one-point integration with viscosity damping hourglass control algorithm,was developed for studying the material flowing deformation in ironing process.Such hourglass control method effectively suppressed the spurious modes activated by reduced integration,and saved too much calculation time.Meanwhile,the multiple layers meshes along thickness direction,3D constitutive law and double sides contact algorithm could accurately describe distribution of stress and strain.Finally,example of ironing process simulation of thick cylinder part shows this solid element valid by comparing with experimental results.

Funds：

国家自然科学基金资助项目(50575080);; 国家科技支撑项目资助(2006BAF01A43)

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