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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2009.1
- 수록면
- 637 - 647 (11page)
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초록· 키워드
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In an effort to reduce the weight of vehicles, automotive companies are replacing conventional steel parts with
light weight alloys and/or with advanced high strength steels (AHSS) such as dual-phase (DP), twinning induced
plasticity (TWIP), and transformation induced plasticity (TRIP) steels. The main objective of this work is to
experimentally and numerically evaluate the macro-performance of the automotive TWIP sheet in conjunction
with springback. In order to characterize the mechanical properties, simple tension and tensioncompression
tests were performed to determine anisotropic properties, as well as the Bauschinger, transient,
and permanent softening behaviors during reverse loading. For numerical simulations, the anisotropic
yield function Yld2000-2d was utilized along with the combined isotropic-kinematic hardening law based
on the modified Chaboche model. Springback verification was performed for the unconstrained cylindrical
bending and 2D draw bending tests.
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