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Mechanisms of stable crack growth in ductile polycarbonate
This item is provided by the institution :
National Technical University of Athens
Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA
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ΕΚΤ item type
Journal part
(EN)
Scientific article
(EN)
EKT year
1989
(EN)
EKT historical period
Title
Mechanisms of stable crack growth in ductile polycarbonate (EN)
Creator
Kytopoulos, V (EN)
Theocaris, PS (EN)
Description
An extensive study of the phenomena appearing during crack propagation in ductile polycarbonate during the phase of stable crack growth (SCG) was undertaken. It has been shown that this phase starts at a critical loading step where a blunted crack was established and a damaged ligament in front of the crack tip developed and stabilized. This phase may be divided into two successive steps. The first is characterized by the step by step advancement of the blunted crack by exhausting respective parts of the damaged ligament so that the overall length of crack and ligament remains stationary. In this step the crack tip opening angle is increasing and attains its final value of the order of 55 degrees. This progressive crack growth, at the expense of the damaged ligament, is replaced by the proper steady crack growth where the crack advances steadily under almost constant external load and under constant CTOA up to a limit where catastrophic fracture occurs. The influence of the in-plane and transverse constraint factors was studied and important results concerning the mechanisms of fracture under predominating plane-stress or plane-strain conditions were established. © 1989 Chapman and Hall Ltd. (EN)
Type
journalArticle (EN)
Subject
Stresses (EN)
Crack Growth (EN)
Crack Propagation (EN)
Critical Loads (EN)
Stable Crack Growth (EN)
Crack Tip Opening Angle (EN)
Polycarbonates (EN)
Provider
National Technical University of Athens
Repository / collection
Digital Library of National Technical University of Athens | Dspace@NTUA
Subcollections
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Journal
Journal of Materials Science (EN)
Issued
1989 (EN)
Identifier
http://hdl.handle.net/123456789/10045
00222461 (EN)
24 (EN)
2358 (EN)
2368 (EN)
10.1007/BF01174497 (EN)
7 (EN)
Publisher
Kluwer Academic Publishers (EN)
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