Key aspects of digital image correlation in impact tests of reinforced concrete beams
Paper in proceedings, 2019

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.

facet.

concrete

sensitivity

digital image correlation

beams

impact

Author

Morgan Johansson

Chalmers, Architecture and Civil Engineering, Structural Engineering

Rasmus Rempling

Chalmers, Architecture and Civil Engineering, Structural Engineering

Gonzalo Sanz

Chalmers, Architecture and Civil Engineering, Structural Engineering

Carlos Zanuy

Technical University of Madrid

IABSE symposium

961-968

Towards a Resilient Built Environment - Risk and Asset Management
Guimarães, Portugal,

Blast and Fragment Impacts: Pre-study of strengthening of structures subjected to impulse loading

Swedish Civil Contingencies Agency, 2014-01-01 -- 2017-12-31.

Driving Forces

Sustainable development

Innovation and entrepreneurship

Subject Categories

Civil Engineering

Signal Processing

Areas of Advance

Materials Science

More information

Latest update

5/28/2019