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Study on the Size Dependence of Calibration Parameters of the New Local Approach Model for Cleavage Fracture
- Source :
- Physical Mesomechanics. 23:324-331
- Publication Year :
- 2020
- Publisher :
- Pleiades Publishing Ltd, 2020.
-
Abstract
- This paper investigates whether the Weibull parameters of the new local approach model for cleavage fractures are affected by the geometric size of the specimen. Based on the fracture test data of A508-C steel, low temperature round notched bar tensile specimens of A508-C steel with two different notch sizes are numerically simulated by using finite element analysis software ABAQUS, and the stress distributions are obtained. The Weibull parameters of two notched bars are calibrated by linear regression method. The results show that the Weibull parameters of the specimens with different notch sizes are different. This suggests that the calibration parameters are dependent on the notch size.
- Subjects :
- 010302 applied physics
Materials science
business.industry
Fracture test
Cleavage (crystal)
02 engineering and technology
Surfaces and Interfaces
Structural engineering
Condensed Matter Physics
01 natural sciences
Finite element analysis software
020303 mechanical engineering & transports
0203 mechanical engineering
Mechanics of Materials
0103 physical sciences
Linear regression
Ultimate tensile strength
General Materials Science
business
Size dependence
Weibull distribution
Subjects
Details
- ISSN :
- 19905424 and 10299599
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Physical Mesomechanics
- Accession number :
- edsair.doi...........79347a1977a9dfb76c4e71ad9bbf42be