Influence of Elastic Modulus Change by Springback Prediction of High Strength Steel

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Phongsai, T.;Chongthairungruang, B.;Uthaisangsuk, V.;Suranuntchai, S.;Jirathearanat, S.

ปีที่เผยแพร่ (ค.ศ.): 2013

วารสาร: Journal of Research and Applications in Mechanical Engineering (2229-2152)

Volume number: 1

Issue number: 4

หน้าแรก: 21

หน้าสุดท้าย: 26

นอก: 2229-2152

URL: ้http://www.jrame.com/Home/index.php/en/table-of-contents/volume-1-issue-4.html

บทคัดย่อ

The springback is caused by the release of residual stresses in a work piece after forming process. Especially, the springback effect is severe by forming high strength steel sheet. A success of the springback prediction using Finite Element (FE) forming simulation strongly depends on the applied materials model. Among various parameters of the model, elastic modulus is one of the most important factors influencing the calculation accuracy that should be considered as a function of strain. In this work, two different material models, the Hill48 and Yoshida-Uemori model were used. For both models, constant and varied elastic moduli were defined. Experimentally and numerically resulted springback of a hat shape stamped part were compared. Considering the elastic modulus change improved the accuracy of the springback prediction. The Yoshida-Uemori model showed better predictions than the Hill48 model in all cases.

คำสำคัญ

High strength steel, Springback, Elastic modulus change, FEM