Digital Image Analysis of Sheet Metal Testing and Forming |
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| Szabolcs Szalai, Imre Czinege |
- Abstract:
- Digital image analysing methods are widely used for evaluating local deformations in sheet metal tests and forming processes. The paper is focusing on tensile tests of uniform and non-uniform width flat specimens made of aluminum alloys, which are suitable for demonstrating Lüders strain, Portevin-Le Chatelier (PLC) effect and for determination of Forming Limit Curve. Tests were carried out using GOM-ARAMIS® digital image analysis hardware and software. Observation of local deformations during tensile tests showed that initiation and evolution of local strains depend on the position of specimens related to rolling direction of sheet. Using non-uniform width specimens the local deformations are concentrated on the smallest cross-section in the final stage of tensile test. The measured major and minor strains give points of FLC.
- Download:
- IMEKO-TC10-2017-030.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC10
- Event name:
- TC10 Workshop on Technical Diagnostics 2017
- Title:
15th IMEKO TC10 Workshop "Technical Diagnostics in Cyber-Physical Era"
- Place:
- Budapest, HUNGARY
- Time:
- 06 June 2017 - 07 June 2017