Experimental investigation of dynamic mixed-mode fracture initiation

J. Lambros; J. J. Mason; A. J. Rosakis

doi:10.1117/12.49481

Experimental investigation of dynamic mixed-mode fracture initiation

J. Lambros, J. J. Mason, A. J. Rosakis

Research output: Contribution to journal › Conference article › peer-review

Abstract

The use of a coherent gradient sensing (CGS) apparatus is explored in dynamic fracture mechanics investigations. The ability of the method to accurately quantify mixed-mode crack tip deformation fields is tested under dynamic loading conditions. The specimen geometry and loading follow that of Lee and Freund^{1, 2} who give the theoretical and numerical mixed mode K values as a function of time for the testing conditions. The CGS system's measurements of K_I and K_II are compared with the predicted results, and good agreement is found.

Original language	English (US)
Pages (from-to)	70-83
Number of pages	14
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1554
DOIs	https://doi.org/10.1117/12.49481
State	Published - Dec 1 1991
Externally published	Yes
Event	2nd International Conference on Photomechanics and Speckle Metrology 1991 - San Diego, United States Duration: Jul 21 1991 → …

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.49481

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title = "Experimental investigation of dynamic mixed-mode fracture initiation",

abstract = "The use of a coherent gradient sensing (CGS) apparatus is explored in dynamic fracture mechanics investigations. The ability of the method to accurately quantify mixed-mode crack tip deformation fields is tested under dynamic loading conditions. The specimen geometry and loading follow that of Lee and Freund1, 2 who give the theoretical and numerical mixed mode K values as a function of time for the testing conditions. The CGS system's measurements of KI and KII are compared with the predicted results, and good agreement is found.",

author = "J. Lambros and Mason, {J. J.} and Rosakis, {A. J.}",

note = "Funding Information: discussions and for making their numerical data available to us prior to publication. We would also like to thank Dr. H. Tippur for his help and advice given in the early stages of this study. Finally, the support of ONR through Contract N00014-90-J-1 340 is gratefully acknowledged. Publisher Copyright: {\textcopyright} 1991 SPIE. All rights reserved.; 2nd International Conference on Photomechanics and Speckle Metrology 1991 ; Conference date: 21-07-1991",

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AU - Lambros, J.

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AU - Rosakis, A. J.

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PY - 1991/12/1

Y1 - 1991/12/1

N2 - The use of a coherent gradient sensing (CGS) apparatus is explored in dynamic fracture mechanics investigations. The ability of the method to accurately quantify mixed-mode crack tip deformation fields is tested under dynamic loading conditions. The specimen geometry and loading follow that of Lee and Freund1, 2 who give the theoretical and numerical mixed mode K values as a function of time for the testing conditions. The CGS system's measurements of KI and KII are compared with the predicted results, and good agreement is found.

AB - The use of a coherent gradient sensing (CGS) apparatus is explored in dynamic fracture mechanics investigations. The ability of the method to accurately quantify mixed-mode crack tip deformation fields is tested under dynamic loading conditions. The specimen geometry and loading follow that of Lee and Freund1, 2 who give the theoretical and numerical mixed mode K values as a function of time for the testing conditions. The CGS system's measurements of KI and KII are compared with the predicted results, and good agreement is found.

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Experimental investigation of dynamic mixed-mode fracture initiation

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