TY - JOUR
T1 - Residual stress in an elastoplastic annular disc interacting with an elastic inclusion
AU - Zarandi, Somayeh Bagherinejad
AU - Lai, Hsiang Wei
AU - Wang, Yun Che
AU - Aizikovich, Sergey M.
N1 - Funding Information:
Funding from Taiwan Ministry of Science and Technology under the contract number of NSC 107-2221-E-006-028 is gratefully appreciated. This research was, in part, supported by the Ministry of Education, Taiwan, R.O.C, and the Aim for the Top University Project to the National Cheng Kung University (NCKU). We are also grateful to the National Center for High-performance Computing for computer time and facilities.
Publisher Copyright:
© 2019 Techno-Press, Ltd.
PY - 2019/6/1
Y1 - 2019/6/1
N2 - Elastoplastic analysis of an annular disc, being fully constrained on its outer rim and interacting with a purely elastic inclusion perfectly bonded with its inner rim, is conducted to study its plastic deformation and residual stress under thermal cycles. The system is termed the composite disc. Quasi-static plane-strain deformation is assumed, and the von Mises yield criterion with or without the Ludwik hardening rule is adopted in our finite element calculations. Effects of multiple material properties simultaneously being temperature dependent on the plastic behavior of the composite disc are considered. Residual stress is analyzed from a complete loading and unloading cycle. Results are discussed for various inclusion radii. It is found that when temperature dependent material properties are considered, the maximum residual stress may be greater than the maximum stress inside the disc at the temperature-loaded state due to lower temperature having larger yield stress. Temperature independent material properties overestimate stresses inside materials, as well as the elastic irreversible temperature and plastic collapse temperature.
AB - Elastoplastic analysis of an annular disc, being fully constrained on its outer rim and interacting with a purely elastic inclusion perfectly bonded with its inner rim, is conducted to study its plastic deformation and residual stress under thermal cycles. The system is termed the composite disc. Quasi-static plane-strain deformation is assumed, and the von Mises yield criterion with or without the Ludwik hardening rule is adopted in our finite element calculations. Effects of multiple material properties simultaneously being temperature dependent on the plastic behavior of the composite disc are considered. Residual stress is analyzed from a complete loading and unloading cycle. Results are discussed for various inclusion radii. It is found that when temperature dependent material properties are considered, the maximum residual stress may be greater than the maximum stress inside the disc at the temperature-loaded state due to lower temperature having larger yield stress. Temperature independent material properties overestimate stresses inside materials, as well as the elastic irreversible temperature and plastic collapse temperature.
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U2 - 10.12989/csm.2019.8.3.273
DO - 10.12989/csm.2019.8.3.273
M3 - Article
AN - SCOPUS:85069157473
SN - 2234-2184
VL - 8
SP - 273
EP - 287
JO - Coupled Systems Mechanics
JF - Coupled Systems Mechanics
IS - 3
ER -