Strain-rate dependence of mechanical behavior and hysteretic characteristics of TMCP steel (SM570-TMC) and its modeling
- Authors
- Chang, Kyong-Ho; Jang, Gab-Chul; Park, Chan-Min; Gil, Heung-Bae
- Issue Date
- May-2009
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- TMCP steel; SM570-TMC; Mechanical behavior; Hysteresis; Strain rate-dependent hysteresis model; Low-cycle fatigue; Finite element analysis
- Citation
- COMPUTATIONAL MATERIALS SCIENCE, v.45, no.3, pp 669 - 673
- Pages
- 5
- Journal Title
- COMPUTATIONAL MATERIALS SCIENCE
- Volume
- 45
- Number
- 3
- Start Page
- 669
- End Page
- 673
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/52987
- DOI
- 10.1016/j.commatsci.2008.10.001
- ISSN
- 0927-0256
1879-0801
- Abstract
- The stress-strain response of TMCP (Thermo-Mechanical Control Process) steels during dynamic deformation is different toward that during static deformation due to strain rate- and tempera tu re-dependences of mechanical behavior. To predict static or dynamic behavior of SM570-TMC under monotonic and cyclic loadings. it is necessary to investigate characteristics of static-dynamic mechanical behavior by experimental approaches and to develop a strain rate-dependent model which can describe the non-linearity and hysteresis of complicated stress-strain relationship in the static and dynamic conditions. Therefore. strain-rate dependence of mechanical behavior and hysteretic characteristic of SM570-TMC is investigated by performing the tensile and low-cycle fatigue experiments as a function of strain rate. And based on the experiments, the strain rate-dependent hysteresis model is proposed by the authors. A three-dimensional elastic-plastic finite element analysis is developed by using the formulated hysteresis model and verified by comparing between the structural analyses and the experiments. (C) 2008 Elsevier B.V. All rights reserved.
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