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Experimental characterization of the out-of-plane shear strength of ultra-high molecular weight polyethylene composite by using the Split Hopkinson Bar Device

Paper presented at 17th European Conference on Composite Materials, ECCM 2016, 26-30th June 2016, Munich, Germany
 
: Ruiz-Ripoll, Maria Luisa; Millon, Oliver; Lässig, Torsten; Riedel, Werner

:
Fulltext urn:nbn:de:0011-n-4353821 (505 KByte PDF)
MD5 Fingerprint: fbf2d634353edf3bdbf5f701ec0e929c
Created on: 22.2.2017


2016, 8 pp.
European Conference on Composite Materials (ECCM) <17, 2016, Munich>
English
Presentation, Electronic Publication
Fraunhofer EMI ()
UHMW-PE; high strain rate; out-of-plane shear strength; Split Hopkinson Bar; dynamic increase factor

Abstract
The material behavior under dynamic processes, such as ballistic impacts, demands a deep knowledge of high-rate testing techniques, dynamic material response and dynamic material models. In this field, ultra-high molecular weight polyethylene (UHMW-PE) composites have been proven to be extremely effective against such threats. During a ballistic impact, a transverse shock wave travels through the material layers. When the shock wave is reflected at the rear face of the component, tensile stresses are created through the material thickness. This dynamic sequence produces a damage mechanism which combines shearing within the top plies of the material, and bulging and delamination at the rear face of the component.

: http://publica.fraunhofer.de/documents/N-435382.html