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Forming Limit Measurement Using a Multi-Sensor Digital Image Correlation System
Technical Paper
2013-01-1423
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A multi-sensor Digital Image Correlation (DIC) system is employed to measure the deformation of metal specimens during tensile tests. The multi-sensor DIC system is capable of providing high quality contour and deformation data of a 3D object. Methodology and advantages of the multi-sensor DIC system is introduced. Tests have been done on steel and aluminum specimens to prove the performance of the system. With the help of the multi-sensor DIC system, we proposed our approaches to determine the forming limit based on shape change around the necking area instead of calculate the FLD based on the in-plane strains. With the employed system, all measurements are done post-deformation, no testing controlling mechanism, such as load force control or touching control, is required. The extracted data is analyzed and the result shows a possibility that we may be able to improve current technique for Forming Limit Diagram (FLD) measurement. The potential of the system in forming limit research is shown.
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Citation
Chen, X., Xu, N., Xie, X., Smith, L. et al., "Forming Limit Measurement Using a Multi-Sensor Digital Image Correlation System," SAE Technical Paper 2013-01-1423, 2013, https://doi.org/10.4271/2013-01-1423.Also In
References
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