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Compression deformation behaviors of sheet metals at various clearances and side forces
- Source :
- MATEC Web of Conferences, Vol 21, p 07009 (2015)
- Publication Year :
- 2015
- Publisher :
- EDP Sciences, 2015.
-
Abstract
- Modeling sheet metal forming operations requires understanding of plastic behaviors of sheet metals along non-proportional strain paths. The plastic behavior under reversed uniaxial loading is of particular interest because of its simplicity of interpretation and its application to material elements drawn over a die radius and underwent repeated bending. However, the attainable strain is limited by failures, such as buckling and in-plane deformation, dependent on clearances and side forces. In this study, a finite element (FE) model was established for the compression process of sheet specimens, to probe the deformation behavior. The results show that: With the decrease of the clearance from a very large value to a very small value, four defects modes, including plastic t-buckling, micro-bending, w-buckling, and in-plane compression deformation will occur. With the increase of the side force from a very small value to a very large value, plastic t-buckling, w-buckling, uniform deformation, and in-plane compression will occur. The difference in deformation behaviors under these two parameters indicates that the successful compression process without failures for sheet specimens only can be carried out under a reasonable side force.
- Subjects :
- business.product_category
Bending (metalworking)
Chemistry
Mechanical engineering
Radius
Deformation (meteorology)
Compression (physics)
Finite element method
Buckling
lcsh:TA1-2040
visual_art
visual_art.visual_art_medium
Die (manufacturing)
Composite material
Sheet metal
business
lcsh:Engineering (General). Civil engineering (General)
Subjects
Details
- Language :
- English
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- MATEC Web of Conferences
- Accession number :
- edsair.doi.dedup.....d53957fa68adf61c73ce4a06bc4145dc