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Failure Analysis of Aramid Fiber Reinforced Aluminum Laminates with Surface and Through Thickness Fatigue Cracks / Y. Macheret, RJ. Bucci, GE. Nordmark, TR. Kipp

Conference Author:
Fractography of Modern Engineering Materials: Composites and Metals, Second Volume (2nd : 1992 : Pittsburgh, Pennsylvania)
Physical Description:
1 online resource (17 pages) : illustrations, figures, tables
Additional Creators:
Bucci, RJ., Kipp, TR., Macheret, Y., Nordmark, GE., American Society for Testing and Materials, and ASTM International
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Summary:
Fiber reinforced aluminum laminates are able to retard fatigue crack growth by transfer of load from cracked aluminum layers to intact fibers. The resulting crack bridging effect leads to superior laminate fatigue crack growth response compared to that of monolithic aluminum. In real laminate structures, fatigue cracks emanating from an open hole, as well as surface cracks initiated in an outer laminate aluminum layer, can be present. In this investigation, fatigue crack growth data on surface notch and open hole (through thickness notch) initiated fatigue cracks are presented. The failure analysis reveals that the surface initiated cracks propagate only in the outer aluminum layer, with fibers remaining intact. The open hole initiated cracks, on the other hand, propagate through the laminate thickness in all aluminum layers. In this case, depending on the laminate residual stress state (controlled by a post stretch procedure), a complete fiber failure may occur. When the fiber integrity is preserved, however, the laminates fatigue response in all cases is superior to that of monolithic aluminum.
Dates of Publication and/or Sequential Designation:
Volume 1993, Issue 1203 (January 1993)
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ISBN:
9780803152496 (e-ISBN)
9780803118669
080311866X
Digital File Characteristics:
text file PDF
Bibliography Note:
Includes bibliographical references 4.
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, 1993. 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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