Key aspects of digital image correlation in impact tests of reinforced concrete beams
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Bibliographic Details
| Author(s): |
Morgan Johansson
(Dept. Civil & Environmental Eng., Chalmers University of Technology, Gothenburg, Sweden)
Rasmus Rempling 
(Dept. Civil & Environmental Eng., Chalmers University of Technology, Gothenburg, Sweden)
Gonzalo S. D. de Ulzurrun (Dept. Continuum Mechanics & Structures, Universidad Politécnica de Madrid, Spain) Carlos Zanuy (Dept. Continuum Mechanics & Structures, Universidad Politécnica de Madrid, Spain) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Towards a Resilient Built Environment Risk and Asset Management, Guimarães, Portugal, 27-29 March 2019 | ||||
| Published in: | IABSE Symposium Guimarães 2019 | ||||
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| Page(s): | 961-968 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/guimaraes.2019.0961 | ||||
| Abstract: |
This paper studies 2-D high speed photography combined with digital image correlation (DIC) applied to experimental research of reinforced concrete beams at moderate loading rates. The aim of the present research is to understand the influence of 2-D DIC set-up parameters in the results. Drop-weight tests have been completed in 1180 × 100 × 100 mm longitudinally reinforced concrete beams. The study has confirmed results sensitivity to image subdivision and mesh properties. While smaller subdivision sizes allow to obtain results nearby boundaries, being more suitable to study local effects, larger sizes enhance computational cost, increase mesh stability and accuracy. A discussion of key aspects of 2-D DIC for measuring different parameters (such as acceleration, displacements, strains and strain-rate) is presented along this paper. |
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| Keywords: |
concrete beams impact sensitivity digital image correlation facet
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