Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
Investigation of a Bending Corrected Forming Limit Surface for Failure Prediction in Sheet Metals
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.ORCID iD: 0000-0001-9889-6746
AutoForm Engineering GmbH, Switzerland .
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.ORCID iD: 0000-0002-7730-506x
Aalborg University, Denmark.
Show others and affiliations
2019 (English)In: Forming Technology Forum, 2019Conference paper, Published paper (Refereed)
Abstract [en]

Ensuring process feasibility is a high priority in the automotive industry today. Within theCAE departments concerning the manufacturing of body components, one of the most important areas ofinterest is the accurate prediction of failure in components through Finite Element simulations. This paperinvestigates the possibility of introducing the component curvature as a parameter to improve failureprediction. Bending-under-tension specimens with different radii are used to create a Bending CorrectedForming Limit Surface (BC-FLS), and a test die developed at Volvo Cars, depicting production-like scenariosby exposing an AA6016 aluminium alloy blank to a stretch-bending condition with biaxial pre-stretching, isused to validate the proposed model in the commercial Finite Element code AutoFormTM R8. The findings ofthis paper showed that the proposed BC-FLS approach performed well in the failure prediction of the test diecompared to the already in AutoFormTM R8 implemented max failure approach.

Place, publisher, year, edition, pages
2019.
Keywords [en]
Sheet Metal Forming, Failure Prediction, Formability, Curvature Dependency
National Category
Other Mechanical Engineering
Research subject
Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-24298OAI: oai:DiVA.org:bth-24298DiVA, id: diva2:1738259
Conference
12th Forming Technology Forum, Herrsching am Ammersee, Germany, September 19-20, 2019
Available from: 2023-02-21 Created: 2023-02-21 Last updated: 2023-03-01Bibliographically approved
In thesis
1. Failure Prediction of Complex Load Cases in Sheet Metal Forming: Emphasis on Non-Linear Strain Paths, Stretch-Bending and Edge Effects
Open this publication in new window or tab >>Failure Prediction of Complex Load Cases in Sheet Metal Forming: Emphasis on Non-Linear Strain Paths, Stretch-Bending and Edge Effects
2023 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

With the increased focus on reducing carbon emissions in today’s society, several industries have to overcome new challenges, where especially the automotive industry is under a lot of scrutiny to deliver improved and more environmentally friendly products. To meet the demands from customers and optimize vehicles aerodynamically, new cars often contain complex body geometries, together with advanced materials that are introduced to reduce the total vehicle weight. With the introduction of the complex body components and advanced materials,one area in the automotive industry that has to overcome these challenges is manufacturing engineering, and in particular the departments working with the sheet metal forming process. In this process complex body component geometries can lead to non-linear strain paths and stretch bending load cases, and newly introduced advanced materials can be prone to exhibit behaviour of edge cracks not observed in conventional sheet metals. This thesis takes it onset in the challenges seen in industry today with predicting failure of the three complex load cases: Non-Linear Strain Paths, Stretch-Bending,and Edge Cracks. Through Finite Element simulation attempts are made to accurately predict failure caused by aforementioned load cases in industrial components or experimental setups in an effort to develop post-processing methods that are applicable to all cases.

Place, publisher, year, edition, pages
Karlskrona: Blekinge Tekniska Högskola, 2023. p. 125
Series
Blekinge Institute of Technology Licentiate Dissertation Series, ISSN 1650-2140 ; 3
Keywords
Sheet Metal Forming, Failure Prediction, Non-Linear Strain Paths, Stretch-Bending, Edge Effects
National Category
Mechanical Engineering Applied Mechanics
Research subject
Mechanical Engineering
Identifiers
urn:nbn:se:bth-24300 (URN)978-91-7295-451-9 (ISBN)
Presentation
2023-04-06, J1630, Valhallavägen 1, Karlskrona, 10:00 (English)
Opponent
Supervisors
Funder
Vinnova, 2020-02986
Available from: 2023-02-27 Created: 2023-02-22 Last updated: 2023-04-19Bibliographically approved

Open Access in DiVA

fulltext(1133 kB)140 downloads
File information
File name FULLTEXT01.pdfFile size 1133 kBChecksum SHA-512
071ce6c6ce27aab5d83c7d8866755ffa5e42836bcea41015d6b8d646eacb5127ea8d07c9df260cb579fae3c20aee43962f7c745e810e2e3e1811d93a63e20ef2
Type fulltextMimetype application/pdf

Authority records

Barlo, AlexanderSigvant, Mats

Search in DiVA

By author/editor
Barlo, AlexanderSigvant, Mats
By organisation
Department of Mechanical Engineering
Other Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 141 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

urn-nbn

Altmetric score

urn-nbn
Total: 541 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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