TY - GEN
T1 - Application of energy-based damage model to simulate ductile fracture under cyclic loading and validation against piping system test data
AU - Youn, Gyo Geun
AU - Nam, Hyun Suk
AU - Kim, Hune Tae
AU - Lee, Jong Min
AU - Kim, Yun Jae
N1 - Funding Information:
This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP), and the Ministry of Trade, Industry & Energy(MOTIE) of the Republic of Korea (No. 20141520100860, No. 20171510102050), by National Research Foundation of Korea(NRF) funded by the Ministry of Science and ICT. (NRF-2017R1A2B2009759)
Publisher Copyright:
Copyright © 2018 ASME.
PY - 2018
Y1 - 2018
N2 - In this paper, a method to predict ductile fracture under low cyclic loading condition is proposed. Then it is compared with test results of surface cracked pipes which is conducted by Battelle Institute. A&F nonlinear kinematic hardening model is adopted to describe material behavior under cyclic loading condition and energy-based damage model is applied to simulate ductile crack growth. The energy-based damaged model is depending on multi-axial fracture strain energy. To apply this model, two parameters should be determined from tensile and C(T) test results under monotonic loading condition. One is multi-axial fracture strain energy Wf and the other is critical damage value °c . From the determined damaged model, it is enable to simulate surface cracked pipe tests under low cyclic loading condition.
AB - In this paper, a method to predict ductile fracture under low cyclic loading condition is proposed. Then it is compared with test results of surface cracked pipes which is conducted by Battelle Institute. A&F nonlinear kinematic hardening model is adopted to describe material behavior under cyclic loading condition and energy-based damage model is applied to simulate ductile crack growth. The energy-based damaged model is depending on multi-axial fracture strain energy. To apply this model, two parameters should be determined from tensile and C(T) test results under monotonic loading condition. One is multi-axial fracture strain energy Wf and the other is critical damage value °c . From the determined damaged model, it is enable to simulate surface cracked pipe tests under low cyclic loading condition.
UR - http://www.scopus.com/inward/record.url?scp=85056907870&partnerID=8YFLogxK
U2 - 10.1115/PVP201884861
DO - 10.1115/PVP201884861
M3 - Conference contribution
AN - SCOPUS:85056907870
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
BT - Materials and Fabrication
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2018 Pressure Vessels and Piping Conference, PVP 2018
Y2 - 15 July 2018 through 20 July 2018
ER -