Analytical and Experimental Study of Fracture in Bend Specimens Subjected to Local Compression / WA. Meith, MR. Hill, TL. Panontin
- Conference Author:
- Fatigue & Fracture Mechanics: 33rd Volume (33rd : 2001 : Jackson Lake Lodge in Morgan, Wyoming)
- Physical Description:
- 1 online resource (17 pages) : illustrations, figures, tables
- Additional Creators:
- Panontin, TL., Hill, MR., Meith, WA., American Society for Testing and Materials, and ASTM International
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License restrictions may limit access. - Summary:
- This study presents finite element simulations and fracture predictions for experimental conditions in a recent ASTM round-robin program on weld fracture toughness. The simulations include the effects of weld residual stress and residual stress alteration due to local compression of notched SE(B) specimens. Simulations are performed for a variety of material models and local compression details. Fracture is predicted using crack-tip stress and strain as inputs to both a local and a global prediction scheme. The local prediction is based on the RKR micromechanical model. The global prediction is based on obtaining a critical value of the J-integral, computed using a modified domain integral. Results predict that fracture toughness in the round robin was markedly reduced by local compression of the specimens. The amount of the reduction depends on the position of the compression platen relative to the notch-tip, but is largely independent of the amount of local compression applied. Available data from the round robin do not completely confirm the prediction results, but some of these data may have been influenced by warm pre-stressing during fatigue pre-cracking.
- Dates of Publication and/or Sequential Designation:
- Volume 2003, Issue 1417 (January 2003)
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- ISBN:
- 9780803154728 (e-ISBN)
9780803128996
0803128991 - Digital File Characteristics:
- text file PDF
- Bibliography Note:
- Includes bibliographical references 16.
- Other Forms:
- 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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Also available in PDF edition. - Reproduction Note:
- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2003. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
- Technical Details:
- Mode of access: World Wide Web.
- Source of Acquisition:
- ASTM International PDF Purchase price USD25.
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