Combined ductile and brittle fracture mode;
Ductile fracture mode;
Fracture toughness estimation;
Small punch test in hydrogen;
X70 PIPELINE STEEL;
HEAT-AFFECTED ZONE;
MECHANICAL-PROPERTIES;
STRESS INTENSITY;
EMBRITTLEMENT;
STRAIN;
TRANSITION;
BEHAVIOR;
D O I:
10.1016/j.euromechsol.2023.105193
中图分类号:
O3 [力学];
学科分类号:
08 ;
0801 ;
摘要:
In this study, an energy-based fracture toughness estimation method based on a small-punch test in a hydrogen environment, exhibiting either ductile or combined ductile and brittle fracture modes is proposed. For the ductile fracture mode, the energy term due to gas pressure in the small-punch test in hydrogen environment is simply added to the existing energy-based fracture toughness estimation equation. For the combined ductile and fracture mode, modified equations for the plastic energy term are proposed to correct overestimation due to brittle cracking. The estimated fracture toughness values are shown to consistent with the published API X70 and X42 test data.
机构:
Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R ChinaSun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China
Lai, Huan Sheng
Jiang, Xiaowei
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h-index: 0
机构:
Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R ChinaSun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China
机构:
Shandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Engn & Technol Res Ctr Special Equipment Safety S, Jinan 250061, Shandong, Peoples R China
Shandong Univ, Res Ctr Safety Guarantee & Assessment Special Equ, Jinan 250061, Shandong, Peoples R ChinaShandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Zhang, Tairui
Wang, Shang
论文数: 0引用数: 0
h-index: 0
机构:
Shandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Engn & Technol Res Ctr Special Equipment Safety S, Jinan 250061, Shandong, Peoples R China
Shandong Univ, Res Ctr Safety Guarantee & Assessment Special Equ, Jinan 250061, Shandong, Peoples R ChinaShandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Wang, Shang
Wang, Weiqiang
论文数: 0引用数: 0
h-index: 0
机构:
Shandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Engn & Technol Res Ctr Special Equipment Safety S, Jinan 250061, Shandong, Peoples R China
Shandong Univ, Res Ctr Safety Guarantee & Assessment Special Equ, Jinan 250061, Shandong, Peoples R ChinaShandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
机构:
Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R ChinaSun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China
Lai, Huan Sheng
Jiang, Xiaowei
论文数: 0引用数: 0
h-index: 0
机构:
Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R ChinaSun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China
机构:
Shandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Engn & Technol Res Ctr Special Equipment Safety S, Jinan 250061, Shandong, Peoples R China
Shandong Univ, Res Ctr Safety Guarantee & Assessment Special Equ, Jinan 250061, Shandong, Peoples R ChinaShandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Zhang, Tairui
Wang, Shang
论文数: 0引用数: 0
h-index: 0
机构:
Shandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Engn & Technol Res Ctr Special Equipment Safety S, Jinan 250061, Shandong, Peoples R China
Shandong Univ, Res Ctr Safety Guarantee & Assessment Special Equ, Jinan 250061, Shandong, Peoples R ChinaShandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Wang, Shang
Wang, Weiqiang
论文数: 0引用数: 0
h-index: 0
机构:
Shandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
Engn & Technol Res Ctr Special Equipment Safety S, Jinan 250061, Shandong, Peoples R China
Shandong Univ, Res Ctr Safety Guarantee & Assessment Special Equ, Jinan 250061, Shandong, Peoples R ChinaShandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China