A New Method for Predicting Extensive Ductile Tearing Using Finite Element Analysis / ML. Gentilcore, RH. Roberts
- Conference Author:
- Fatigue and Fracture Mechanics: 29th Volume (29th : 1997 : Stanford, CA)
- Physical Description:
- 1 online resource (15 pages) : illustrations, figures, tables
- Additional Creators:
- Gentilcore, ML., Roberts, RH., American Society for Testing and Materials, and ASTM International
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License restrictions may limit access. - Summary:
- A new finite-element model is proposed that can predict the relationship between load, displacement, and crack length for high-toughness, thin plate structural steel members. These types of members exhibit stable tearing for large amounts of crack extension, providing residual capacity for deformation well beyond the point of maximum load. This behavior must be accurately predicted in order to take full advantage of high-toughness plate steels in structural design. The new model uses a strength of materials approach to simulate plastic collapse of the material ahead of the crack tip, allowing the effect of localized necking to be simulated without the need for large-deformation analysis. A simple engineering stress-strain curve is used to define material properties throughout the model. No special crack tip elements or detailed mesh refinement is required. Predictions made using the model are compared to experimental data from an HSLA-80 center-cracked plate specimen and a full-scale I-beam specimen that featured over 150 mm of crack extension.
- Dates of Publication and/or Sequential Designation:
- Volume 1999, Issue 1332 (January 1999)
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- ISBN:
- 9780803153967 (e-ISBN)
9780803124868
0803124864 - Digital File Characteristics:
- text file PDF
- Bibliography Note:
- Includes bibliographical references 7.
- 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, 1999. 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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