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Investigation of the Slow Crack Growth Behavior of Static and Cyclic Loaded Specimens of Polyethylene by 2D and 3D Optical Fracture Surface Analysis
Author(s) -
Frank Andreas,
Bruckmoser Katharina,
Redhead Anita,
Gruber Dieter P.,
Pinter Gerald
Publication year - 2012
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201000097
Subject(s) - extrapolation , materials science , scanning electron microscope , fracture (geology) , polyethylene , composite material , fracture mechanics , surface (topology) , bar (unit) , geometry , geology , mathematics , mathematical analysis , oceanography
Summary: A fracture surface investigation was conducted to study the applicability of cracked round bar (CRB) specimens for an accelerated extrapolation concept for a lifetime assessment of polyethylene (PE) pipes. Scanning electron microscopy and topography metrology with InfiniteFocus were used to study the slow crack growth behavior in CRB specimens at different loading conditions. The results confirm the compliance of the CRB test with the requirements of linear elastic fracture mechanics.