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Investigation of the dynamic behavior of a PU based adhesive using Split-Hopkinson Tensile and compression bars

Paper presented at the 1st International Conference on Impact Loading of Structures and Materials, ICILSM 2016, 22-26 May 2016, Torino, Italy
: Ledford, Noah; Paul, Hanna; Sauer, Martin; May, Michael

Fulltext urn:nbn:de:0011-n-4353367 (491 KByte PDF)
MD5 Fingerprint: 351bb228bfbd6c31554c227e7b88c41c
Created on: 21.2.2017

2016, 4 pp.
International Conference on Impact Loading of Structures and Materials (ICILSM) <1, 2016, Torino>
Presentation, Electronic Publication
Fraunhofer EMI ()
adhesives; Split Hopkinson Bar; experimental methods

The applicability of the Split Hopkinson Bar method to test PU based adhesive with thick bondlines is investigated. An adhesive is tested in tension, compression and shear with a Split Hopkinson Tension Bar (SHTB) and a Direct Impact Split Hopkinson Pressure Bar (Direct SHPB). Specifically developed sample geometries and corresponding experimental setups are briefly presented. Results for tension specimen obtained with SHTB are compared to results gained from tests using hydraulic machines (standard and VHS). The comparison shows that with the current setup, the SHTB is very well suitable to characterize the dynamic stiffness of the adhesive bond. Compression and shear tests have also been successfully performed using Direct SHPB and SHTB, however, due to limited space in this extended abstract, the compression and shear results will be given in the oral presentation.