scholarly journals Constraint Correction of Fracture Toughness CTOD for Fracture Performance Evaluation of Structural Components

2008 ◽  
pp. 48-48-19 ◽  
Author(s):  
F Minami ◽  
K Arimochi
Keyword(s):  
Fracture Toughness ◽  
Performance Evaluation ◽  
Structural Components ◽  
Fracture Performance ◽  
Constraint Correction

Relationship Between Weibull Parameter and Fracture Toughness of Structural Steels

2008 ◽  
Author(s):  
Tsunehisa Handa ◽  
Hiroshi Mimura ◽  
Mitsuru Ohata ◽  
Fumiyoshi Minami
Keyword(s):  
Fracture Toughness ◽  
Test Specimen ◽  
Fracture Process ◽  
Shape Parameter ◽  
Process Zone ◽  
Structural Components ◽  
Stress Criterion ◽  
Plastic Constraint ◽  
Fracture Performance ◽  
Weibull Stress

The brittle fracture assessment for structural components excluding an excessive conservatism should be conducted under the concept of fitness-for-service assessment. One of the factors that lead to such a conservative estimation of brittle fracture performance is no consideration of plastic constraint loss in structural components compared to the fracture toughness test specimen. The Weibull stress criterion is expected to correct the CTOD (Crack Tip Opening Displacement) fracture toughness of materials to the critical CTOD for structural components of concern through the same level of Weibull stress, which take into account not only the difference in plastic constraint but also volume of fracture process zone between toughness test specimen and structural components. On the basis of the Weibull stress criterion, the fracture driving force, that is the Weibull stress, is dependent on the Weibull shape parameter m. Furthermore, such dependency is influenced by both the plastic constraint level and the volume of fracture process zone for specimens of interest. The different m-value would result in the different correction ratio of the fracture toughness to the critical CTOD for structural components. Accordingly, the parameter m should be estimated for the appropriate fracture performance evaluation in consideration of constraint loss correction. In this paper, a simple method for estimating the Weibull shape parameter m were introduced. That is the effort to address the factors to affect the m-value in terms of strength class and toughness level of materials based on the data from literatures, which is for efficient and rational estimation of m-value without any experimental and numerical works.

scholarly journals Significance of Shallow Notch CTOD Test. Fracture Toughness Measurement for Fracture Performance Evaluation of Weldments.

1993 ◽  
Vol 11 (3) ◽  
pp. 454-460 ◽  
Author(s):  
Masao Toyoda ◽  
Fumiyoshi Minami ◽  
Claudio Ruggieri ◽  
Kiyoshi Bessyo ◽  
Kazushige Arimochi ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Performance Evaluation ◽  
Fracture Toughness Measurement ◽  
Fracture Performance ◽  
Toughness Measurement

RUUKKI RAEX 300

Alloy Digest ◽  
2012 ◽  
Vol 61 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Shear Strength ◽  
Impact Toughness ◽  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Structural Components ◽  
Wear Resistant

Abstract RUUKKI RAEX 300 (typical yield strength 900 MPa) is part of the Raex family of high-strength and wear-resistant steels with favorable hardness and impact toughness to extend life and decrease wear in structural components. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness. It also includes information on wear resistance as well as forming, machining, and joining. Filing Code: SA-643. Producer or source: Rautaruukki Corporation.

CYCLOPS BHT

Alloy Digest ◽  
1965 ◽  
Vol 14 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Elevated Temperature ◽  
High Speed ◽  
High Speed Steel ◽  
High Strength ◽  
Heat Treating ◽  
High Load ◽  
Structural Components ◽  
Temperature Performance

Abstract Cyclops BHT is a low-alloy martensitic high-speed steel of the molybdenum type recommended for high strength, high load structural components designed for elevated temperature service. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-173. Producer or source: Cyclops Corporation.

DOMEX 110XF

Alloy Digest ◽  
2003 ◽  
Vol 52 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength Steel ◽  
Civil Engineering ◽  
High Strength ◽  
Heat Treating ◽  
Bend Strength ◽  
Structural Components ◽  
Very High

Abstract Domex 110XF is a very-high-strength steel that is used for automotive and civil engineering structural components. This datasheet provides information on composition, physical properties, hardness, tensile properties, and bend strength as well as fracture toughness. It also includes information on heat treating and joining. Filing Code: SA-512. Producer or source: SSAB Swedish Steel Inc.

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