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Characterization of Ductile Core Materials
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.ORCID iD: 0000-0002-1187-4796
2010 (English)In: Journal of Sandwich Structures and Materials, ISSN 1099-6362, E-ISSN 1530-7972, Vol. 12, no 2, 237-252 p.Article in journal (Refereed) Published
Abstract [en]

This article describes an experimental investigation of characterization methods for ductile core materials. Full-field optical strain measurement methods are used to determine the strain distributions in standard testing methods such as block shear and four-point beam testing, particularly for highly ductile cores subjected to large deformations. The results show that the stress and strain fields in both block shear and sandwich beam tests are very different to those assumed by the testing standards. The test methods result in complex post yield states of stress in the core materials, meaning the core shear strength and ultimate shear strain should not be calculated by classical methods in the post yield region.

Place, publisher, year, edition, pages
2010. Vol. 12, no 2, 237-252 p.
Keyword [en]
sandwich structures, experimental mechanics, core materials
National Category
Materials Engineering Mechanical Engineering
URN: urn:nbn:se:kth:diva-30191DOI: 10.1177/1099636209104532ISI: 000274532100007ScopusID: 2-s2.0-77649244170OAI: diva2:400822
8th International Conference on Sandwich Structures (ICSS-08) Univ Porto, Oporto, PORTUGAL, MAY 06-08, 2008
QC 20110228Available from: 2011-02-28 Created: 2011-02-21 Last updated: 2011-02-28Bibliographically approved

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