Damage at high strain rates in semi-crystalline polymers
2015 (English)In: International Journal of Impact Engineering, ISSN 0734-743X, Vol. 76, 1-8 p.Article in journal (Refereed) Published
A specific damage characterization method using Digital Image Correlation for semi-crystalline polymers is proposed for a wide range of strain rates. This damage measurement is an extension of the SEE method  which was developed to characterize the behaviour laws at constant strain rates of polymeric materials. This procedure is compared to the well-known damage characterization by loss of stiffness technique under quasi-static loading. In addition, an in-situ tensile test, carried out in a microtomograph, is used to observe the cavitation phenomenon in real time. The different ways used to evaluate the damage evolution are compared and the proposed technique is also suitable for measuring the ductile damage observed in semi-crystalline polymers under dynamic loading.
Place, publisher, year, edition, pages
2015. Vol. 76, 1-8 p.
Damage, Digital image correlation, Microtomograph, Semi-crystalline polymers, High strain rates
IdentifiersURN: urn:nbn:se:kth:diva-160047DOI: 10.1016/j.ijimpeng.2014.08.013ISI: 000346541800001ScopusID: 2-s2.0-84907737388OAI: oai:DiVA.org:kth-160047DiVA: diva2:793290
QC 201503062015-03-062015-02-132015-03-06Bibliographically approved