Balanced Biaxial Testing of Advanced High Strength Steels in Warm Conditions
SCIE
SCOPUS
- Title
- Balanced Biaxial Testing of Advanced High Strength Steels in Warm Conditions
- Authors
- Lee, JY; Xu Le; Barlat, F; Wagoner, RH; Lee, MG
- Date Issued
- 2013-11
- Publisher
- SEM
- Abstract
- The main purpose of the present work is to measure the stress-strain behavior under warm conditions (about 100 A degrees C) of advanced high strength steel (AHSS) sheets up to large strains compared to uniaxial tension. The test equipment consists of two main parts, i.e., a hydraulic bulge tester and a heating device. A mechanical system is attached to the test equipment for measuring the membrane stress and thickness strain at the bulge pole. The stress-strain curves were measured for three kinds of AHSS sheets with the proposed test method for various initial temperatures (10, 50 and 100 A degrees C). The proposed method does not provide isothermal stress-strain curves because the specimen temperature increases during the test due to the effect of deformation-induced heating. A numerical scheme using thermo-mechanical finite element (FE) simulations is suggested to deconvolute the isothermal stress-strain curves.
- Keywords
- Hydraulic bulge test; Advanced high strength steel (AHSS); Temperature; Hardening law; Thermo-mechanical FE simulation
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/14681
- DOI
- 10.1007/S11340-013-9758-X
- ISSN
- 0014-4851
- Article Type
- Article
- Citation
- Experimental Mechanics, vol. 53, no. 9, page. 1681 - 1692, 2013-11
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- There are no files associated with this item.
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