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Blast response of RC slabs with externally bonded reinforcement : experimental and analytical verification Ghent University
Micro-CT analysis of internal structure of sheared textile composite reinforcement KU Leuven
© 2015 Elsevier Ltd. All rights reserved. Abstract Simple shear is a deformation mechanism typical for a woven fabric during draping. The mesoscopic internal structure of the fabric differs between the non-deformed state and a sheared state. This paper presents an analysis of the internal structure of woven fabrics in a sheared state based on micro-CT (X-ray micro computed tomography) imaging of the internal structure of woven fabrics in a ...
Micro-CT analysis of the internal deformed geometry of a non-crimp 3D orthogonal weave E-glass composite reinforcement KU Leuven
An investigation at the unit cell level of the sheared geometry of a single layer E-glass non-crimp 3D orthogonal woven reinforcement (commercialized under trademark 3WEAVE® by 3Tex Inc.) is performed by X-ray micro-computed tomography (micro-CT) observations. The aim is to observe, understand and quantify the effect of in-plane shear deformation on the composite reinforcement geometry, at meso-scale (i.e. unit cell level). It was observed that, ...
Stay-in-Place Formwork of TRC Designed as Shear Reinforcement for Concrete Beams Vrije Universiteit Brussel
In order to reduce on-site building time, the construction industry shows an increasing interest in stay-in-place formwork with a reinforcement function after concrete hardening, such as CFRP formwork confinement for columns. The current combined systems however do not answer the demand of the building industry for a material system that is both lightweight and fire safe. High performance textile reinforced cement (TRC) composites can address ...
Potential of memory steel reinforcement for shear strengthening of concrete bridge girders with I-sections Ghent University
This study was carried out to assess the performance of near surface mounted (NSM) memory steel reinforcement for shear strengthening of concrete girders with I-sections. Specially designed/strengthened concrete I-sections were tested in tension and the bond behaviour of memory steel was observed and reported as failure mode, load displacement and strain variation. It has been demonstrated that the memory steel reinforcement has a great ...
Bond behaviour of FRP shear reinforcement on I-sections Ghent University
Although external fibre reinforced polymer (FRP) reinforcements are easy to manipulate around any shape, their behaviour varies with respect to the geometry of the strengthened cross sections. This is in particular the case for shear strengthening of I-sections, such as prestressed concrete girders. The externally bonded (EBR) FRP shear reinforcement is susceptible to early debonding around the internal angles at the web-flange interface. Due to ...
Guiding the exploration strategy of a reinforcement learning agent Vrije Universiteit Brussel
Reinforcement Learning (RL) is a Machine Learning method mimicking the way humans learn to perform new tasks, specifically when it involves a great amount of trial and error. By nature, it is a progressive process that requires many interactions with the environment, and therefore time, before it can exhibit a satisfactory behavior. Consequently, an important challenge faced by current RL techniques is sample-efficiency. While most approaches to ...
Round robin testing initiative for fiber reinforced polyer (FRP) reinforcement Ghent University
An international Round Robin Testing (RRT) programme on FRP reinforcement was conducted within the framework of the Marie Curie Research Training Network, EN-CORE, and with the support of Task Group 9.3 of the International Federation for Structural Concrete (fib). Eleven laboratories and six manufacturers and suppliers participated in this exercise. As part of this extensive experimental endeavour, one or more of the following tests were ...