Actions for Damage-Based Notched Strength Modeling : A Summary

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Damage-Based Notched Strength Modeling : A Summary / MT. Kortschot, PWR Beaumont

Conference Author
Composite Materials: Fatigue and Fracture (Third Volume) (3rd : 1989 : Lake Buena Vista, Florida)
Physical Description
1 online resource (21 pages) : illustrations, figures, tables
Additional Creators
Beaumont, PWR, Kortschot, MT., American Society for Testing and Materials, and ASTM International
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Summary
The effect of subcritical damage on the notched strength of cross-ply graphite-epoxy specimens has been studied using 914C/T300 laminates of the family (90j/0j)ns (j = 1,2, n = 1,2,4). Damage was monitored using quasi-real-time radiography and dynamic scanning electron microscopy. In addition, the strain field in the vicinity of the notch tip was mapped using a high-resolution optical technique. A strong relationship between subcritical damage and notched strength is evident in all of the data. A theoretical model that is based on observed damage is briefly summarized. Finite element analysis was used to determine the effect of splitting and delamination on the stress distribution in the 0¿̐ư ply. All specimens were found to fail when the maximum stress in the 0¿̐ư ply equaled the strength of this ply. The model predicts the effect of both notch size and layup on strength without the need for empirical parameters.
Dates of Publication and/or Sequential Designation
Volume 1991, Issue 1110 (January 1991)
Subject(s)
Other Subject(s)
ISBN
0803114192
9780803114197
9780803151697 (e-ISBN)
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 32.
Other Forms
Also available in PDF edition.
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1991. 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.
View MARC record | catkey: 27995742