Energy absorption of SMC/balsa sandwich panels with geometrical triggering features
2010 (English)In: Composite structures, ISSN 0263-8223, Vol. 92, no 11, 2676-2684 p.Article in journal (Refereed) Published
The influence of triggering topologies on the peak load and energy absorption of sandwich panels loaded in in-plane compression is investigated. Sandwich panels with different geometrical triggering features are manufactured and tested experimentally. The damage initiation in panels with grooves is investigated using finite element models. As expected the investigated triggering features reduce the extreme load peaks. A less expected result is that the plateau load following peak load tends to be higher for panels with triggering features. Both results are favourable for the crash performance of panels in vehicle applications. For panels containing no or few grooves the peak load seems to be governed by principles of fracture mechanics while initial failure in panels with a higher number of grooves appears to be controlled by the average stress.
Place, publisher, year, edition, pages
Oxford, UK: Elsevier , 2010. Vol. 92, no 11, 2676-2684 p.
Sandwich; Energy absorption; Edgewise compression; Damage triggering
Applied Mechanics Composite Science and Engineering Other Materials Engineering
IdentifiersURN: urn:nbn:se:kth:diva-11156DOI: 10.1016/j.compstruct.2010.03.018ISI: 000279301300007ScopusID: 2-s2.0-77953356942OAI: oai:DiVA.org:kth-11156DiVA: diva2:236440
QC 201507292009-09-232009-09-232015-07-29Bibliographically approved