Investigation of Branching in Polycarbonate Due to Stress Corrosion

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Investigation of Branching in Polycarbonate Due to Stress Corrosion

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Publication Conference Paper, peer reviewed
Title Investigation of Branching in Polycarbonate Due to Stress Corrosion
Author(s) Hejman, Ulf ; Bjerkén, Christina
Date 2008
English abstract
In this study, experiments have been made to investigate how the width of stress corrosion cracks change when branching occurs. The amount of dissolved material is investigated using and optical microscope. Crack width before and after branching and characteristic crack angels are measured. It was found that the total width of the branches is preserved after branching and a connection to the stress intensity factor at the crack tips is suggested. It is assumed that quasistatic calculations for branched cracks, found in literature, can be applied to these cracks. Experiments have been performed on polycarbonate with acetone as a dissolving agent. Experimental results are compared with numerically simulated results as well as with data found in literature.
Publisher VUTIUM Brno, Czech Republic
Host/Issue Proceedings 17th European Conference on Fracture, Brno 2008
Language eng (iso)
Subject(s) Technology
Research Subject Categories::TECHNOLOGY::Engineering mechanics
Note 17th European Conference on Fracture, EFC17, Sept 2-5, 2008, Brno, Czech Republic
Handle http://hdl.handle.net/2043/7476 (link to this page)

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