Evolution of plasticity in relation to ductile tearing in 304(L) stainless steel

Andrew P. Wasylyk; Andrew H. Sherry

doi:10.1115/PVP2010-25674

Evolution of plasticity in relation to ductile tearing in 304(L) stainless steel

Andrew P. Wasylyk^*, Andrew H. Sherry

^*Corresponding author for this work

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

In the structural integrity assessment of structures containing defects, ductile tearing and plastic collapse are treated as competing failure mechanisms. The validity of fracture toughness measurements in test specimens is limited by the development of plasticity ahead of the crack tip. Compact Tension (CT) specimens are commonly used to characterise the ductile fracture toughness. Two sizes of CT specimens (thickness 25 and 15mm) were tested using the unloading compliance technique and the J-Resistance curve characterised. Concurrently, the development of the plastic zone was monitored on the surface of specimens using digital image correlation. This enabled the plastic zone size to be correlated with the evolution of crack growth. It was found that in both specimens no crack growth had occurred prior to plastic yielding of the un-cracked ligament on the specimen surface.

Original language	English
Title of host publication	ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010
Pages	553-558
Number of pages	6
Volume	5
DOIs	https://doi.org/10.1115/PVP2010-25674
Publication status	Published - 2010
Event	ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010 - Bellevue, WA, United States Duration: 18 Jul 2010 → 22 Jul 2010

Conference

Conference	ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010
Country/Territory	United States
City	Bellevue, WA
Period	18/07/10 → 22/07/10

Research Beacons, Institutes and Platforms

Dalton Nuclear Institute

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10.1115/PVP2010-25674

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title = "Evolution of plasticity in relation to ductile tearing in 304(L) stainless steel",

abstract = "In the structural integrity assessment of structures containing defects, ductile tearing and plastic collapse are treated as competing failure mechanisms. The validity of fracture toughness measurements in test specimens is limited by the development of plasticity ahead of the crack tip. Compact Tension (CT) specimens are commonly used to characterise the ductile fracture toughness. Two sizes of CT specimens (thickness 25 and 15mm) were tested using the unloading compliance technique and the J-Resistance curve characterised. Concurrently, the development of the plastic zone was monitored on the surface of specimens using digital image correlation. This enabled the plastic zone size to be correlated with the evolution of crack growth. It was found that in both specimens no crack growth had occurred prior to plastic yielding of the un-cracked ligament on the specimen surface.",

author = "Wasylyk, {Andrew P.} and Sherry, {Andrew H.}",

year = "2010",

doi = "10.1115/PVP2010-25674",

language = "English",

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volume = "5",

pages = "553--558",

booktitle = "ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010",

note = "ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010 ; Conference date: 18-07-2010 Through 22-07-2010",

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T1 - Evolution of plasticity in relation to ductile tearing in 304(L) stainless steel

AU - Wasylyk, Andrew P.

AU - Sherry, Andrew H.

PY - 2010

Y1 - 2010

N2 - In the structural integrity assessment of structures containing defects, ductile tearing and plastic collapse are treated as competing failure mechanisms. The validity of fracture toughness measurements in test specimens is limited by the development of plasticity ahead of the crack tip. Compact Tension (CT) specimens are commonly used to characterise the ductile fracture toughness. Two sizes of CT specimens (thickness 25 and 15mm) were tested using the unloading compliance technique and the J-Resistance curve characterised. Concurrently, the development of the plastic zone was monitored on the surface of specimens using digital image correlation. This enabled the plastic zone size to be correlated with the evolution of crack growth. It was found that in both specimens no crack growth had occurred prior to plastic yielding of the un-cracked ligament on the specimen surface.

AB - In the structural integrity assessment of structures containing defects, ductile tearing and plastic collapse are treated as competing failure mechanisms. The validity of fracture toughness measurements in test specimens is limited by the development of plasticity ahead of the crack tip. Compact Tension (CT) specimens are commonly used to characterise the ductile fracture toughness. Two sizes of CT specimens (thickness 25 and 15mm) were tested using the unloading compliance technique and the J-Resistance curve characterised. Concurrently, the development of the plastic zone was monitored on the surface of specimens using digital image correlation. This enabled the plastic zone size to be correlated with the evolution of crack growth. It was found that in both specimens no crack growth had occurred prior to plastic yielding of the un-cracked ligament on the specimen surface.

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U2 - 10.1115/PVP2010-25674

DO - 10.1115/PVP2010-25674

M3 - Conference contribution

AN - SCOPUS:80155137261

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EP - 558

BT - ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010

T2 - ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010

Y2 - 18 July 2010 through 22 July 2010

ER -

Evolution of plasticity in relation to ductile tearing in 304(L) stainless steel

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