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Mechanics in Engineering ›› 2019, Vol. 41 ›› Issue (6): 703-708.doi: 10.6052/1000-0879-19-206

• Research on Education • Previous Articles     Next Articles

MEASUREMENT IN TENSILE TEST OF TRUE STRESS-STRAIN CURVES FOR LOW-CARBON STEEL1)

LI Kai*, †, **, 2), XUE Yongjiang*, **   

  1. * Shanghai Institute of Applied Mathematics and Mechanics, Shanghai 200444, China;
    Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai 200072, China;
    ** School of Mechanics and Engineering Science, Shanghai University, Shanghai 200444, China
  • Received:2019-06-03 Published:2019-12-27

Abstract: In order to measure the true stress-strain curve of low carbon steel, an experimental teaching system based on a single camera three-dimensional digital image correlation system is developed. The system can be used to measure the three-dimensional surface morphology and the surface strain in the tensile test of a low carbon steel bar, and obtain its true stress-strain curve. This experiment helps the students to understand the mechanical properties of plastic metal materials and cultivate their interest in the scientific research.

Key words: low carbon steel, stress-strain curve, three-dimensional digital image correlation, experiment teaching

CLC Number: 

  • TB301