Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography

Marks, Benjy; Miletić, Marta; Lee, Bernard Cheuk Hay; Zia, Muhammad Hazim; Barros, Joaquim A. O.; Dias-da-Costa, D.

doi:10.1016/j.cemconres.2021.106390

Cited by 18 publications

(1 citation statement)

References 61 publications

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“…Many damage assessment techniques can be used to assess the damage of composites. The technologies currently used include visual inspection, 12 x‐ray, 13 eddy current, 14 ultrasonic 15 and thermal imaging 16 . However, these techniques are not in‐service or real‐time inspection methods and usually cannot provide us with information on the time and type of joint damage under external load.…”

Section: Introductionmentioning

confidence: 99%

Damage evolution monitoring and failure level evaluation of composite bolted joints by MXene/CNTs sensors

Zhang,

et al. 2023

Polymer Composites

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The composite bolted joints are the weak points of overall structure, lacking an effective and accurate monitoring method. In this paper, a novel MXene/CNTs film sensor with high sensitivity and stability was synthesized for the damage evolution monitoring of composite bolted joints. The correlation between the response signals of the sensors and the mechanical behaviors of the composite structures is established. Based on this research, the damage evolution monitoring and failure level evaluation of composite bolted joints were studied. The damage properties of the composite bolted joints can be reflected in real‐time by the resistance change rates of the sensors. The experimental results show that the failure level of composite bolted joints can be divided into four levels (I‐II‐III‐IV) according to the resistance change rates of sensors. Especially when the damage extended to the III stage, the surged from 0.3 to 0.75. The time point of this step signal occurred about 1 min earlier than the time point of max bearing strength, which can effectively warn the occurrence of structural failure.Highlights Research used high‐sensitivity MXene/CNTs sensor to monitor bolt structure Sensor array can be integrated with the composite bolted structure Structural damage of composite bolted joints was accurately monitored Failure level evaluation of composite bolted structure was achieved

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