scholarly journals Effect of Notch Size, Angular Distortion and Residual Stress on Brittle Fracture Initiation Characteristics of Welded Joints for High Strength Steels (The 1st Report)

1969 ◽  
Vol 1969 (125) ◽  
pp. 255-274
Author(s):  
Hiroshi Kihara ◽  
Takeshi Kanazawa ◽  
Hiroshi Oba ◽  
Shuzo Susei ◽  
Shunji Minakata ◽  
...  
Keyword(s):  
Residual Stress ◽  
Brittle Fracture ◽  
Welded Joints ◽  
High Strength Steels ◽  
High Strength ◽  
Fracture Initiation ◽  
Angular Distortion

Effect of Welding Residual Stress and Plastic Constraint on Brittle Fracture of a High Strength Steel

2009 ◽  
Author(s):  
Masaki Torigoe ◽  
Yoichi Yamashita ◽  
Takehisa Yamada
Keyword(s):  
Residual Stress ◽  
Brittle Fracture ◽  
High Strength Steel ◽  
Crack Tip ◽  
High Strength ◽  
Fracture Initiation ◽  
Parent Material ◽  
Welding Residual Stress ◽  
Cross Sectional ◽  
Plastic Constraint

This paper investigates the effect of welding residual stress and plastic constraint on brittle fracture of a 780 MPa class high-strength steel (HT780). In order to investigate the effect of welding residual stress, three point bend (3PB) fracture toughness tests were conducted using the parent-material specimens and groove-welded specimens which were prepared to have the same cross-sectional proportion; i.e., a ratio of thickness to width of 0.5. Crack length was determined so that the crack tip was located in the base-metal zone far from the heat-affected zone of the welded specimen to eliminate the effect of any degradation of the parent-material property on fracture resistance. Also, in order to investigate the effect of constraint, tensile loading tests in which the plastic constraint was expected to be less than 3PB were conducted using welded specimens as the same as employed in the 3PB test. Three dimensional finite element (FE) analyses were performed to evaluate the stress state near the crack tip at the point of brittle fracture initiation for each test condition. From the results of experiments and FE analyses, it is confirmed that the fracture test results can be evaluated using J or KJ – Q theory, by considering enhancement or reduction due to residual stress.

Effect of Ms Temperature on Residual Stress in Welded Joints of High-Strength Steels

2010 ◽  
Vol 54 (3-4) ◽  
pp. R71-R79 ◽  
Author(s):  
Chiaki Shiga ◽  
Hiroyuki Y. Yasuda ◽  
Kazuo Hiraoka ◽  
Hiroshi Suzuki
Keyword(s):  
Residual Stress ◽  
Welded Joints ◽  
High Strength Steels ◽  
High Strength

scholarly journals Brittle fracture resistance of haz metal in arc-welded joints of high-strength steels with carbon content of 0.55–0.65 %

2016 ◽  
Vol 2016 (9) ◽  
pp. 2-8 ◽  
Author(s):  
A.A. Gajvoronsky ◽  
◽  
V.D. Poznyakov ◽  
L.I. Markashova ◽  
E.N. Berdnikova ◽  
...  
Keyword(s):  
Brittle Fracture ◽  
Carbon Content ◽  
Welded Joints ◽  
Fracture Resistance ◽  
High Strength Steels ◽  
High Strength ◽  
Brittle Fracture Resistance

scholarly journals Brittle fracture resistance of haz metal in arc-welded joints of high-strength steels with carbon content of 0.55–0.65 %

2016 ◽  
Vol 2016 (9) ◽  
pp. 3-9
Author(s):  
A.A. Gajvoronsky ◽  
◽  
V.D. Poznyakov ◽  
L.I. Markashova ◽  
E.N. Berdnikova ◽  
...  
Keyword(s):  
Brittle Fracture ◽  
Carbon Content ◽  
Welded Joints ◽  
Fracture Resistance ◽  
High Strength Steels ◽  
High Strength ◽  
Brittle Fracture Resistance

Residual Stress at Fatigue Fracture Surface of Heat Treated High Strength Steels

1979 ◽  
pp. 227-232 ◽  
Author(s):  
Atsutomo Komine ◽  
Hideo Ueda ◽  
Eisuke Nakanishi ◽  
Shotaro Araki ◽  
Kazuo Taguchi
Keyword(s):  
Residual Stress ◽  
Fracture Surface ◽  
Fatigue Fracture ◽  
High Strength Steels ◽  
High Strength ◽  
Fatigue Fracture Surface ◽  
Heat Treated
Sign in / Sign up

Export Citation Format

Share Document