Key aspects of digital image correlation in impact tests of reinforced concrete beams
Paper i proceeding, 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

Författare

Morgan Johansson

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Rasmus Rempling

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Gonzalo Sanz

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Carlos Zanuy

Universidad Politecnica de Madrid

IABSE symposium

961-968

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

Stötvåg- och splitterbelastade konstruktioner: Armerade betong- och fiberbetongkonstruktioner

Myndigheten för samhällsskydd och beredskap, 2014-01-01 -- 2017-12-31.

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Ämneskategorier

Samhällsbyggnadsteknik

Signalbehandling

Styrkeområden

Materialvetenskap

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Senast uppdaterat

2019-05-28