Prediction of Stable Tearing and Fracture of a 2000-Series Aluminum Alloy Plate Using a CTOA Criterion / DS. Dawicke, RS. Piascik, JC. Newman

Conference Author:: Fatigue and Fracture Mechanics: 27th Volume (27th : 1995 : Williamsburg, Virginia)
Physical Description:: 1 online resource (15 pages) : illustrations, figures, tables
Additional Creators:: Dawicke, DS., Piascik, RS., Newman, JC., American Society for Testing and Materials, and ASTM International

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Summary:

Accurate predictions of stable tearing in a 7.6-mm-thick 2000-series aluminum alloy were made using the critical crack-tip opening angle (CTOA) criterion. The predictions were verified through a comparison of experimental and analytical results. A two-dimensional, elastic-plastic finite element analysis was used to simulate the fracture behavior of a 102-mm-wide C(T) specimen. The analysis determined that a critical crack-tip opening angle (?c = 5¿̐ư) resulted in good correlation with the experimental load against crack opening displacement data. This angle was compared to surface and microtopography CTOA measurements. The angle obtained from the finite element simulation was used to predict the fracture behavior of tests conducted on 102-mm-wide M(T), 305-mm-wide M(T), and 152-mm-wide C(T) specimens. The two-dimensional, elastic-plastic finite element analysis predicted the maximum loads of the 102-mm-wide M(T), 305-mm-wide M(T), and 152-mm-wide C(T) within 3, 4, and 8% of the experimental results, respectively.

Dates of Publication and/or Sequential Designation:

Volume 1997, Issue 1296 (January 1997)

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ISBN:

9780803153554 (e-ISBN)
9780803124127
0803124120

Digital File Characteristics:

text file PDF

Bibliography Note:

Includes bibliographical references 27.

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Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1997. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.

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Mode of access: World Wide Web.

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