Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Buckling of laser-welded sandwich panels. Part 2: Elastic buckling normal to the webs
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.ORCID iD: 0000-0002-9744-4550
2006 (English)In: Journal of Engineering for the Maritime Environment (Part M), ISSN 1475-0902, E-ISSN 2041-3084, Vol. 220, no 2, 81-94 p.Article in journal (Refereed) Published
Abstract [en]

This is the second of three companion papers that examine the elastic buckling andcollapse of laser-welded sandwich panels with an adhesively bonded core and uni-directionalvertical webs. In the first paper, it has been shown that the critical load in compression parallelto the webs can be accurately predicted by using a Pasternak foundation to model the coreand by using a simple clamping factor to describe the boundary conditions at the laser weld.In this paper, the same model is adapted to predict the critical load in compression normal tothe webs. As the face plate is now short and wide, rather than long and narrow as before, a‘constrained wrinkling’ approach is outlined that recognises that the face plate is limited in itsability to wrinkle naturally and can only deform in certain mode shapes. The clamping factorand the effective wave length are derived for different buckling mode shapes and boundaryconditions at the laser weld, and the constrained wrinkling load is determined by evaluatingthe buckling load for successive modes and simply picking the smallest value. It is shown that,for low modulus core materials, the constrained wrinkling load is equal to the bare platebuckling load and, for high modulus materials, the solution converges toward anti-symmetricalwrinkling, as has been found for the case of compression parallel to webs. The constrainedwrinkling load agrees well with finite element results but as before the proportional limit ofthe face plate material is usually reached well before elastic buckling occurs.

Place, publisher, year, edition, pages
Sage Publications, 2006. Vol. 220, no 2, 81-94 p.
Keyword [en]
sandwich, laser welding, web, core, Pasternak foundation, constrained wrinkling, mode shape
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-52434DOI: 10.1243/14750902JEME34Scopus ID: 2-s2.0-33947597726OAI: oai:DiVA.org:kth-52434DiVA: diva2:466501
Note

QC 20111220

Available from: 2011-12-16 Created: 2011-12-16 Last updated: 2017-12-08Bibliographically approved

Open Access in DiVA

fulltext(483 kB)63 downloads
File information
File name FULLTEXT01.pdfFile size 483 kBChecksum SHA-512
0b9ad6fc481ed9b5cd8afb83b39a088c0cb55b8abb47775ac99b45bca721414ab077b614d067a93b040a40438a8cdcd5ab8bdd2829b8afc0e2b1a41ba7593456
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopusPublisher's website

Authority records BETA

Zenkert, Dan

Search in DiVA

By author/editor
Kolsters, HansZenkert, Dan
By organisation
Lightweight Structures
In the same journal
Journal of Engineering for the Maritime Environment (Part M)
Applied Mechanics

Search outside of DiVA

GoogleGoogle Scholar
Total: 63 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

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 82 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf