Change search
ReferencesLink to record
Permanent link

Direct link
Buckling of laser-welded sandwich panels: ultimate strength and experiments
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-9744-4550
2010 (English)In: Journal of Engineering for the Maritime Environment (Part M), ISSN 1475-0902, Vol. 224, no M1, 29-45 p.Article in journal (Refereed) Published
Abstract [en]

This is the last of three companion papers which examine the elastic buckling and collapse of laser-welded sandwich panels with an adhesively bonded core and unidirectional vertical webs. By evaluation of the buckling stress in the first two papers it has been found that the buckling stress in compression parallel and normal to the webs typically reaches the proportional limit of the face plate and web material well before elastic buckling occurs. Hence, this paper presents an extension of the buckling model into the elastoplastic regime, with the aim of determining the ultimate (local) strength of the sandwich and of allowing experimental verification of the results. Using tangent modulus theory to 'plasticize' the elastic buckling model, the ultimate strength is evaluated for a sandwich configuration with high-strength steel face plates and a broad range of core moduli. The critical load predicted by the inelastic buckling model agrees well with non-linear finite element results and experimental values obtained from compression testing.

Place, publisher, year, edition, pages
Sage Publications, 2010. Vol. 224, no M1, 29-45 p.
Keyword [en]
sandwich, laser welding, web, core, ultimate strength, non-linear finite element, compression testing
National Category
Vehicle Engineering
URN: urn:nbn:se:kth:diva-46687DOI: 10.1243/14750902JEME174ISI: 000278993500003ScopusID: 2-s2.0-76149089164OAI: diva2:454016

QC 20111104

Available from: 2011-11-04 Created: 2011-11-04 Last updated: 2015-05-07Bibliographically approved

Open Access in DiVA

fulltext(1036 kB)65 downloads
File information
File name FULLTEXT01.pdfFile size 1036 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopusPublisher's website

Search in DiVA

By author/editor
Kolsters, HansZenkert, Dan
By organisation
Aeronautical and Vehicle Engineering
In the same journal
Journal of Engineering for the Maritime Environment (Part M)
Vehicle Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 65 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 75 hits
ReferencesLink to record
Permanent link

Direct link