Thermomechanics of slow stable crack growth: Closing the loop between experiments and computational modeling

K. S. Bhalla; A. T. Zehnder; X. Han

doi:10.1016/S0013-7944(03)00006-7

Thermomechanics of slow stable crack growth: Closing the loop between experiments and computational modeling

K. S. Bhalla, A. T. Zehnder, X. Han

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Most of the plastic work done ahead of a running crack is dissipated as heat. Even for slow moving cracks the resulting temperature field is of interest since it carries quantitative information about the energy consumed in crack growth and a qualitative description of the distributed damage to the material. In this study, the temperature field ahead of a stable, Mode I, growing crack in a ductile material is imaged using an infrared camera. Thermal images are analyzed to compute energy flux to the crack. Coupled temperature-displacement FEA are performed to model these experiments and a good match with experiments is obtained.

Original language	English (US)
Pages (from-to)	2439-2458
Number of pages	20
Journal	Engineering Fracture Mechanics
Volume	70
Issue number	17
DOIs	https://doi.org/10.1016/S0013-7944(03)00006-7
State	Published - Nov 2003
Externally published	Yes

Keywords

Crack energy flux
Infrared imaging
Stable crack growth
Thermomechanics

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/S0013-7944(03)00006-7

Cite this

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title = "Thermomechanics of slow stable crack growth: Closing the loop between experiments and computational modeling",

abstract = "Most of the plastic work done ahead of a running crack is dissipated as heat. Even for slow moving cracks the resulting temperature field is of interest since it carries quantitative information about the energy consumed in crack growth and a qualitative description of the distributed damage to the material. In this study, the temperature field ahead of a stable, Mode I, growing crack in a ductile material is imaged using an infrared camera. Thermal images are analyzed to compute energy flux to the crack. Coupled temperature-displacement FEA are performed to model these experiments and a good match with experiments is obtained.",

keywords = "Crack energy flux, Infrared imaging, Stable crack growth, Thermomechanics",

author = "Bhalla, {K. S.} and Zehnder, {A. T.} and X. Han",

note = "Funding Information: This work made use of the Cornell Center for Materials Research (CCMR) shared experimental facilities, supported through the National Science Foundation Materials Research Science and Engineering Centers Program (DMR-0079992). Particular acknowledgement is made of the use of the Materials Facility and the Research Computing Facilities of the CCMR. We are also grateful to Jonathan Klamkin for his help in performing the experiments. ",

year = "2003",

month = nov,

doi = "10.1016/S0013-7944(03)00006-7",

language = "English (US)",

volume = "70",

pages = "2439--2458",

journal = "Engineering Fracture Mechanics",

issn = "0013-7944",

publisher = "Elsevier BV",

number = "17",

}

TY - JOUR

T1 - Thermomechanics of slow stable crack growth

T2 - Closing the loop between experiments and computational modeling

AU - Bhalla, K. S.

AU - Zehnder, A. T.

AU - Han, X.

N1 - Funding Information: This work made use of the Cornell Center for Materials Research (CCMR) shared experimental facilities, supported through the National Science Foundation Materials Research Science and Engineering Centers Program (DMR-0079992). Particular acknowledgement is made of the use of the Materials Facility and the Research Computing Facilities of the CCMR. We are also grateful to Jonathan Klamkin for his help in performing the experiments.

PY - 2003/11

Y1 - 2003/11

N2 - Most of the plastic work done ahead of a running crack is dissipated as heat. Even for slow moving cracks the resulting temperature field is of interest since it carries quantitative information about the energy consumed in crack growth and a qualitative description of the distributed damage to the material. In this study, the temperature field ahead of a stable, Mode I, growing crack in a ductile material is imaged using an infrared camera. Thermal images are analyzed to compute energy flux to the crack. Coupled temperature-displacement FEA are performed to model these experiments and a good match with experiments is obtained.

AB - Most of the plastic work done ahead of a running crack is dissipated as heat. Even for slow moving cracks the resulting temperature field is of interest since it carries quantitative information about the energy consumed in crack growth and a qualitative description of the distributed damage to the material. In this study, the temperature field ahead of a stable, Mode I, growing crack in a ductile material is imaged using an infrared camera. Thermal images are analyzed to compute energy flux to the crack. Coupled temperature-displacement FEA are performed to model these experiments and a good match with experiments is obtained.

KW - Crack energy flux

KW - Infrared imaging

KW - Stable crack growth

KW - Thermomechanics

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VL - 70

SP - 2439

EP - 2458

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

IS - 17

ER -

Thermomechanics of slow stable crack growth: Closing the loop between experiments and computational modeling

Abstract

Keywords

ASJC Scopus subject areas

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