FURTHER OBSERVATIONS ON MIXED MODE PLANE STRESS DUCTILE FRACTURE.

Y. W. Mai; B. Cotterell

doi:10.1007/978-94-009-6914-8_29

FURTHER OBSERVATIONS ON MIXED MODE PLANE STRESS DUCTILE FRACTURE.

Y. W. Mai, B. Cotterell

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

1 Citation (Scopus)

Abstract

Mixed mode ductile fractures in thin sheets are shown to be possible for two low carbon steels and two aluminum alloys. The staggered deep edge notch tension specimen allows the mixed mode J//C to be measured and to be partitioned into its component modes J//I//C and J//I//I//C by extrapolating the specific work of fracture to zero ligament length. For the low carbon steels J//C is shown to be independent of the mode of fracture, but for the aluminum alloys J//C is dependent on the stagger angle ( theta ). It is suggested that if necking is intensive and the strain hardening exponent (n) is low, J//C will vary with theta . If, however, necking is moderate and n is comparatively large, J//C is approximately constant.

Original language	English
Title of host publication	Fracture Mechanics Technology Applied to Material Evaluation and Structure Design
Publisher	Martinus Nijhoff Publ
Pages	401-413
Number of pages	13
ISBN (Electronic)	9789400969148
ISBN (Print)	9024728851, 9789024728855, 9789400969162
DOIs	https://doi.org/10.1007/978-94-009-6914-8_29
Publication status	Published - 1983
Externally published	Yes

ASJC Scopus subject areas

General Engineering

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10.1007/978-94-009-6914-8_29

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title = "FURTHER OBSERVATIONS ON MIXED MODE PLANE STRESS DUCTILE FRACTURE.",

abstract = "Mixed mode ductile fractures in thin sheets are shown to be possible for two low carbon steels and two aluminum alloys. The staggered deep edge notch tension specimen allows the mixed mode J//C to be measured and to be partitioned into its component modes J//I//C and J//I//I//C by extrapolating the specific work of fracture to zero ligament length. For the low carbon steels J//C is shown to be independent of the mode of fracture, but for the aluminum alloys J//C is dependent on the stagger angle ( theta ). It is suggested that if necking is intensive and the strain hardening exponent (n) is low, J//C will vary with theta . If, however, necking is moderate and n is comparatively large, J//C is approximately constant.",

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year = "1983",

doi = "10.1007/978-94-009-6914-8_29",

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publisher = "Martinus Nijhoff Publ",

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AU - Mai, Y. W.

AU - Cotterell, B.

PY - 1983

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N2 - Mixed mode ductile fractures in thin sheets are shown to be possible for two low carbon steels and two aluminum alloys. The staggered deep edge notch tension specimen allows the mixed mode J//C to be measured and to be partitioned into its component modes J//I//C and J//I//I//C by extrapolating the specific work of fracture to zero ligament length. For the low carbon steels J//C is shown to be independent of the mode of fracture, but for the aluminum alloys J//C is dependent on the stagger angle ( theta ). It is suggested that if necking is intensive and the strain hardening exponent (n) is low, J//C will vary with theta . If, however, necking is moderate and n is comparatively large, J//C is approximately constant.

AB - Mixed mode ductile fractures in thin sheets are shown to be possible for two low carbon steels and two aluminum alloys. The staggered deep edge notch tension specimen allows the mixed mode J//C to be measured and to be partitioned into its component modes J//I//C and J//I//I//C by extrapolating the specific work of fracture to zero ligament length. For the low carbon steels J//C is shown to be independent of the mode of fracture, but for the aluminum alloys J//C is dependent on the stagger angle ( theta ). It is suggested that if necking is intensive and the strain hardening exponent (n) is low, J//C will vary with theta . If, however, necking is moderate and n is comparatively large, J//C is approximately constant.

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DO - 10.1007/978-94-009-6914-8_29

M3 - Conference article published in proceeding or book

AN - SCOPUS:0020896627

SN - 9024728851

SN - 9789024728855

SN - 9789400969162

SP - 401

EP - 413

BT - Fracture Mechanics Technology Applied to Material Evaluation and Structure Design

PB - Martinus Nijhoff Publ

ER -

FURTHER OBSERVATIONS ON MIXED MODE PLANE STRESS DUCTILE FRACTURE.

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