Use of DIC and AE for Monitoring Effective Strain and Debonding in FRP and FRCM-Retrofitted RC Beams
作者： Daniel A. Pohoryles , Jose Melo , Tiziana Rossetto , Matthias Fabian , Colum McCague
DOI: 10.1061/(ASCE)CC.1943-5614.0000715
关键词:
摘要: AbstractThe effective strain in composites, along with their potential rupture and debonding, plays a crucial role predicting the strength of retrofitted reinforced concrete (RC) beams. However, only limited experimental data on these phenomena are available, mainly because inadequacy traditional deformation measurement techniques. This paper presents comparative analysis instrumentation for monitoring RC elements. In particular, addresses beams composite materials, FRPs (fiber-reinforced polymers), FRCMs cementitious mortars). It also considers gauges, fiber Bragg grating (FBG) sensors, LVDTs, digital image correlation (DIC), acoustic emission (AE) sensors strain, displacement, cracking, debonding. Experiments six carried out, measured from devices compared. The accuracy DIC displacement is shown to match perf...
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