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.
|Title of host publication||Materials and Fabrication|
|Publisher||American Society of Mechanical Engineers (ASME)|
|Publication status||Published - 2018|
|Event||ASME 2018 Pressure Vessels and Piping Conference, PVP 2018 - Prague, Czech Republic|
Duration: 2018 Jul 15 → 2018 Jul 20
|Name||American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP|
|Other||ASME 2018 Pressure Vessels and Piping Conference, PVP 2018|
|Period||18/7/15 → 18/7/20|
Bibliographical noteFunding 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)
Copyright © 2018 ASME.
ASJC Scopus subject areas
- Mechanical Engineering