TY - JOUR
T1 - Extracting ductile fracture toughness from small punch test data using numerical modeling
AU - Jeon, Jun Young
AU - Kim, Yun Jae
AU - Lee, Sa Yong
AU - Kim, Jin Weon
N1 - Funding Information:
This research was supported by Engineering Research Center Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT and Future Planning ( NRF-2007-0056094 ) and the Power Generation & Electricity Delivery of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Knowledge Economy, Republic of Korea (No. 20101020300710 ).
PY - 2016/3/1
Y1 - 2016/3/1
N2 - This paper presents a numerical method to extract ductile fracture toughness from notched small punch test data using FE ductile damage analysis based on the stress-modified fracture strain model. To validate the proposed method, analysis results are compared with series of mechanical (notched tensile, fracture toughness and small punch) test data for three different materials; low alloy steel SA508 Gr.3, TP316L austenitic stainless steel and CF8M cast austenitic stainless steel. Comparison with experimental fracture toughness data shows that the proposed method can predict fracture initiation values relatively well and tearing resistance conservatively.
AB - This paper presents a numerical method to extract ductile fracture toughness from notched small punch test data using FE ductile damage analysis based on the stress-modified fracture strain model. To validate the proposed method, analysis results are compared with series of mechanical (notched tensile, fracture toughness and small punch) test data for three different materials; low alloy steel SA508 Gr.3, TP316L austenitic stainless steel and CF8M cast austenitic stainless steel. Comparison with experimental fracture toughness data shows that the proposed method can predict fracture initiation values relatively well and tearing resistance conservatively.
KW - Ductile fracture simulation
KW - Finite element damage analysis
KW - Fracture toughness estimation
KW - Notched small punch test
KW - Stress-modified fracture strain
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U2 - 10.1016/j.ijpvp.2016.02.011
DO - 10.1016/j.ijpvp.2016.02.011
M3 - Article
AN - SCOPUS:84959489559
VL - 139-140
SP - 204
EP - 219
JO - International Journal of Pressure Vessels and Piping
JF - International Journal of Pressure Vessels and Piping
SN - 0308-0161
ER -