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Fracture behavior of cracks in ductile plates under monotonic mixed-mode loading
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
1991
(EN)
EKT historical period
Title
Fracture behavior of cracks in ductile plates under monotonic mixed-mode loading (EN)
Creator
Kytopoulos, V (EN)
Theocaris, PS (EN)
Description
An experimental study of the early stages of ductile fracture was undertaken by using scanning electromicroscopy (SEM). The variation of several parameters influencing this type of fracture was introduced during the study of the preliminary blunting phase followed by the creation of the damaged ligament in front of the crack which resulted in the initiation of the slow propagation phase. This was achieved by changing the angle of obliqueness, α, of the edge cracks made in thin or thick plates of polycarbonate which exemplified cases where predominantly plane stress or plane strain conditions prevailed. The change of the angle α influenced drastically the value of the mixed-mode factor μ = K11/K1. The parameters studied were the crack-tip opening angle (CTOA), the damaged ligament in front of the crack face, the direction and orientation of the subsequent crack initiation and propagation and finally the variation of crack propagation and velocity at the early stage of slow crack propagation. Important results were derived from this experimental study which clarified various aspects of ductile fracture during the initiation of a new step of propagation of the crack. © 1991 Kluwer Academic Publishers. (EN)
Type
journalArticle (EN)
Subject
Experimental Study (EN)
Crack Initiation (EN)
Ductile Fracture (EN)
Microscopic Examination - Scanning Electron Microscopy (EN)
Crack Tips (EN)
Crack Propagation (EN)
Fracture Mechanics (EN)
Crack Tip Opening Angle (EN)
Mechanics (EN)
Materials Testing - Fracture (EN)
Mixed Mode Loading (EN)
Plates (EN)
Mixed Mode (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
International Journal of Fracture (EN)
Language
English
Issued
1991 (EN)
Identifier
http://hdl.handle.net/123456789/10442
1 (EN)
47 (EN)
39 (EN)
ISI:A1991EV07600003 (EN)
10.1007/BF00037038 (EN)
52 (EN)
0376-9429 (EN)
Publisher
Kluwer Academic Publishers (EN)
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