scholarly journals Fracture Toughness Evaluation for Sandia Mock-up Stainless Steel Canister Weldment Using Spiral Notch Torsion Fracture Toughness Test

2019 ◽  
Author(s):  
Jy-An John Wang
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Fracture Toughness Test ◽  
Toughness Test ◽  
Toughness Evaluation ◽  
Torsion Fracture ◽  
Fracture Toughness Evaluation ◽  
Spiral Notch

SAE 4340 Fracture Toughness Evaluation Following Wang’s Formulation for Spiral Notch Torsion Test Specimens

2021 ◽  
Vol 50 (1) ◽  
pp. 20200417
Author(s):  
Guilherme Bernardes Rodrigues ◽  
Marcelo Torres Piza Paes ◽  
Francisco Francelino Ramos Neto ◽  
Sinésio Domingues Franco ◽  
Rosenda Valdés Arencibia ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Torsion Test ◽  
Toughness Evaluation ◽  
Fracture Toughness Evaluation ◽  
Spiral Notch

Constraint Effect—How to Link Between Structural Integrity Assessment and Fracture Toughness Evaluation

1997 ◽  
Vol 119 (2) ◽  
pp. 125-133
Author(s):  
M. Toyoda
Keyword(s):  
Fracture Toughness ◽  
Structural Integrity ◽  
Fracture Toughness Test ◽  
Stress Strain ◽  
Integrity Assessment ◽  
Strain Behavior ◽  
Plastic Constraint ◽  
Toughness Evaluation ◽  
The Difference ◽  
Fracture Toughness Evaluation

The difference in the degree of plastic constraint in the vicinity of a pre-existing crack brings about difficulty in the evaluation of fracture performance of weldments when using fracture toughness obtained by conventional fracture toughness test results. The constraint controlling factors can be divided into two main areas, geometrical and material factors. The effect of both factors on the stress/strain behavior in the vicinity of a crack tip is discussed systematically based on previous research and numerical analyses. It is clarified that the common fracture parameters such as J and CTOD do not always represent material constants because of the change of stress/strain behavior as a result of the difference in plastic constraint. The possibility of evaluation based on the local approach is discussed in order to link between structural integrity assessment and fracture toughness evaluation.

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