Acoustic emission during necking and plastic elongation of semi-crystalline polymer blends

0211973 - UT-L 20010225 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Převorovský, Zdeněk - Krofta, Josef - Blaháček, Michal - Raab, M.
Acoustic emission during necking and plastic elongation of semi-crystalline polymer blends.
Book of Abstracts - Formulation and constitutive laws for very large strains. Praha: Ústav termomechaniky AV ČR, 2001 - (Plešek, J.; Gabriel, D.; Poživilová, A.), s. 41. ISBN 80-85918-66-8.
[Euromech colloquium 430 - Formulations and constitutive laws for very large strains. Praha (CZ), 03.10.2001-05.10.2001]
Grant CEP: GA AV ČR IAA4050904
Výzkumný záměr: CEZ:AV0Z2076919
Klíčová slova: acoustic emission * polymer blends * plastic elongation
Kód oboru RIV: BI - Akustika a kmity

Tensile tests of polypropylene and its blends with polyethylene and other additives have been recorded by digital camcorder. Acoustic emission (AE) was monitored during tests by two transducers attached to test samples, allowing linear location of AE**ces. Tested materials exhibit large localized plastic deformation - necking - reaching hundreds of percent before failure. Image analysis procedure is designed for quantitative evaluation of axial and lateral strains and strain rates along the sample
Trvalý link: http://hdl.handle.net/11104/0107522