The size effect in KICresults

Wallin, Kim

doi:10.1016/0013-7944(85)90167-5

Cited by 224 publications

(71 citation statements)

References 16 publications

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“…In order to directly compare toughness data obtained from different thickness specimens, a statistical size correction is employed to equilibrate the highly stressed material volume sampled at the crack tip by cleavage. Each value of toughness K Jc data measured for a particular specimen thickness is converted to an equivalent value for a reference 1 T specimen with thickness B 1T = 25 mm using the following equation [188]:…”

Section: Weibull Statistical Modelmentioning

confidence: 99%

“…The present version is ASTM E1921-11 [18]. This standard is based on the master curve method developed primarily by Wallin [178,188,[190][191][192]194] as described above, and provides the procedures for determination of the reference temperature T 0 to characterize the fracture toughness K Jc of ferritic steels that experience onset of cleavage cracking at elastic or elastic-plastic instabilities in the ductile-to-brittle transition region. The specific types of ferritic steels have the yield strengths from 275 to 825 MPa.…”

Section: Astm E1921 Developmentmentioning

confidence: 99%

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Review of fracture toughness (G, K, J, CTOD, CTOA) testing and standardization

Zhu

Joyce

2012

Engineering Fracture Mechanics

601

126

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Stress intensity factor Energy release rate CTOD CTOA J-integral J-R curve K-R curve ASTM standard a b s t r a c tThe present paper gives a technical review of fracture toughness testing, evaluation and standardization for metallic materials in terms of the linear elastic fracture mechanics as well as the elastic-plastic fracture mechanics. This includes the early investigations and recent advances of fracture toughness test methods and practices developed by American Society for Testing and Materials (ASTM). The review describes the most important fracture mechanics parameters: the elastic energy release rate G, the stress intensity factor K, the Jintegral, the crack-tip opening displacement (CTOD) and the crack-tip opening angle (CTOA) from the basic concept, definition, to experimental estimation, test methods and ASTM standardizing practices. Attention is paid to guidelines on how to choose an appropriate fracture parameter to characterize fracture toughness for the material of interest, and how to measure the fracture toughness value defined either at a critical point or in a resistance curve format using laboratory specimens. The relevant ASTM fracture toughness test standards considered in this paper are E399 for K Ic testing, E561 for K-R curve testing, E813 for J Ic testing, E1152 for J-R curve testing, E1737 for J Ic and J-R curve testing, E1290 for CTOD (d) testing, a combined common test standard E1820 for measuring the three parameters of K, J and d, E1921 for the transition reference temperature T 0 testing and the master curve of cleavage toughness K Jc testing, and E2472 for CTOA testing. The effects of loading rate, temperature and crack-tip constraint on fracture toughness as well as fracture instability analysis are also reviewed.

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Section: Weibull Statistical Modelmentioning

confidence: 99%

Section: Astm E1921 Developmentmentioning

confidence: 99%

Review of fracture toughness (G, K, J, CTOD, CTOA) testing and standardization

Zhu

Joyce

2012

Engineering Fracture Mechanics

601

126

View full text Add to dashboard Cite

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“…Merkle [18] has offered an alternative method of accounting for plasticity, suggesting that the difference between small and large specimen data is due to constraint differences. This explanation seems unlikely in view of Wallin's analysis cited earlier [4].…”

Section: [2)mentioning

confidence: 54%

Micromechanisms and toughness for cleavage fracture of steel

Rosenfield

Majumdar

1987

Nuclear Engineering and Design

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“…At the same time, the scatter of the material toughness is lower. This will be captured with the Weibull distribution of the Master-Curve- 2018, Universitat Politècnica de València concept ( [10,11]) in the brittle-ductile transition region. For the probability of failure P f a three-parametric distribution is common in which two parameters are predefined.…”

Section: Fracture Toughnessmentioning

confidence: 99%

Toughness of old mild steels

Stroetmann

Sieber

2018

Proceedings 12th International Conference on Advances in Steel-Concrete Composite Structures - ASCCS 2018

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For the rehabilitation of steel structures from the 19th and the early 20th century the brittle fracture behaviour is essential for the structural safety. The methods of the assessment used in EN 1993-1-10 were predominantly developed for welded structures made of current steel grades with more or less high toughness. The check by limitation of the plate thickness (Table 2.1 in [1]) is not suitable for old mild steel structures with riveted and bolted connections. Notch effects and residual stresses are quite different to those ones of welded structures. The material properties of old mild steels are characterised by larger scatters, particularly due to the inhomogeneous distribution of tramp elements and higher contents of non-metallic inclusions. In this paper, experimental and analytical studies of the brittle fracture behaviour of mild steels as well as aging effects of structural elements with holes for riveted and bolted connections are presented (see also [2][3][4], [20]).

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The size effect in KICresults

Cited by 224 publications

References 16 publications

Review of fracture toughness (G, K, J, CTOD, CTOA) testing and standardization

Review of fracture toughness (G, K, J, CTOD, CTOA) testing and standardization

Micromechanisms and toughness for cleavage fracture of steel

Toughness of old mild steels

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