A novel approach for generating a full-range tensile stress-strain curve

Document Number: 2009-01-0470

Date Published: April 2009

Author(s):
Gang Huang - ArcelorMittal USA
Hong Zhu - ArcelorMittal USA
Benda Yan - ArcelorMittal USA

Abstract:
A new method has been developed to measure full stress-strain curves using Digital Image Correlation (DIC) for Advanced High Strength Steels (AHSS). With the post-necking strain measured by DIC system during tensile tests, stress-strain data for AHSS beyond uniform elongation up to fracture can be determined. In this paper, the technique to generate full stress-strain curves by DIC is introduced. The measured stress-strain curves are compared with those obtained by extrapolation methods. The measured stress-strain data generated by the new method is validated by finite element analysis (FEA).

File Size: 564K
Product Status: In Stock

See other papers presented at SAE World Congress & Exhibition, April 2009, Detroit, MI, USA, Session: Modeling, Testing and Design of Materials for Dummies and Structures for Crash Safety Applications

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