Searched for: subject%3A%22Digital%255C+Image%255C+Correlation%22
(41 - 60 of 66)
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Gao, Peng (author), Chen, Yang (author), Huang, Haoliang (author), Qian, Zhiwei (author), Schlangen, E. (author), Wei, Jiangxiong (author), Yu, Qijun (author)Concrete generally deforms and cracks in a non-uniform manner under drying-induced stress. This study used the lattice fracture model to simulate the drying-induced non-uniform deformations, stresses, and micro-crack propagation in concrete. Experiments were designed to validate the lattice fracture model, wherein the drying-induced non...journal article 2020
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Zhang, F. (author), Zarate Garnica, G.I. (author), Yang, Y. (author), Lantsoght, E.O.L. (author), Sliedrecht, Henk (author)In the Netherlands, many prestressed concrete bridge girders are found to have insufficient shear–tension capacity. We tested four girders taken from a demolished bridge and instrumented these with traditional displacement sensors and acoustic emission (AE) sensors, and used cameras for digital image correlation (DIC). The results show that AE...journal article 2020
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GUPTA, Chetan (author)Joining of aerospace structures has been accomplished using mechanical fasteners since the advent of flight. With the growing application of lightweight composite structures in aircrafts, joining methods involving fasteners have been under scrutiny. The lack of material plasticity and high notch sensitivity of composites in the presence of...master thesis 2019
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- Stikkelorum, Sascha (author) master thesis 2019
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van Helvoort, Derron (author)Additive manufacturing allows material structuring, supporting the fabrication of multiple-level structures or metamaterials. Through the lens of classical stress reduction, nature’s cellular solid structures feature stress-homogenizing nodal topologies. Avian long bones are an example. Research into the mechanics of open cell cellular solids...master thesis 2019
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Korswagen, Paul A. (author), Longo, M. (author), Meulman, E. (author), Rots, J.G. (author)In recent years, gas extraction in the northern part of the Netherlands has been causing low-magnitude, induced, shallow earthquakes. Besides safety, the prediction and evaluation of ‘light’ damage due to these induced ground motions is important, as it is related to economic and serviceability losses, and societal unrest. An experimental and...journal article 2019
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Lukovic, M. (author), Hordijk, D.A. (author), Huang, Z. (author), Schlangen, E. (author)Strain Hardening Cementitious Composite (SHCC) is an innovative material which, due to the special material composition and the addition of fibres, exhibits a controlled microcracking behaviour under tensile stresses. As such it might be a promising material for improvement of durability of concrete structures.<br/><br/>An experimental study was...journal article 2019
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Zarate Garnica, Gabriela (author)Digital Image Correlation analysis is performed to obtain measurements of the crack kinematics of four reinforced concrete beams without shear reinforcement. The results are used to implement the critical shear displacement theory. This new theory proposes that the opening of the critical inclined crack can be considered as a lower bound for the...student report 2018
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Agarwal, G. (author), Gao, H. (author), Amirthalingam, M. (author), Hermans, M.J.M. (author)In situ strain evolution during laser welding has been measured by means of digital image correlation to assess the susceptibility of an advanced high strength automotive steel to solidification cracking. A novel method realised using auxiliary illumination and optical narrow bandpass filter allowed strain measurements as close as 1.5 mm from...journal article 2018
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Gao, H. (author), Agarwal, G. (author), Amirthalingam, M. (author), Hermans, M.J.M. (author), Richardson, I.M. (author)Hot cracking during laser welding of Transformation Induce Plasticity (TRIP) steel at the edges of steel flanges can be a problem. In this study, modified hot cracking tests were performed by welding on a single-side clamped specimen at various distances from the free edge, while the heat input and external constraints remained constant. In situ...journal article 2018
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Simarmata, Reiner (author)Digital Image Correlation is a cheap and easy to use measurement method that has been proved to characterise any solid material parameters up to plastic deformation range. The digital image correlation measurement system is based on the tracking of a collective number of pixels from the surface of the reference image to the deformed image. This...master thesis 2017
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Puzio, Tomek (author)Fibre Metal Laminates (FML) are hybrid composites, with the attempt to combine the advantages of metals and fibre reinforced plastics. Their promising properties are used locally in joining areas to reduce the structural weight. As the metal foils density, in this case a steel alloy, is much higher than the density of carbon plies, its amount...master thesis 2017
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Walraet, Stef (author)Efficient design of woven composite structures is limited by a knowledge gap in predictive modeling of their behaviour. Fatigue modeling in particular is difficult and limited by a lack of experimental data. For compression-compression (C-C) or tension-compression (T-C) fatigue, experimental results in literature are uncommon. In this master...master thesis 2017
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Xing, C. (author), Tan, Yiqiu (author), Liu, X. (author), Anupam, K. (author), Scarpas, Athanasios (author)Failure behavior of asphalt mixture is the process of local deformation accumulation, therefore, local deformation investigation is the base work of failure behavior. Digital image correlation (DIC) method is an optical method which can calculate the local deformation in the failure process. This paper aims to evaluate the precision, select...journal article 2017
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Hangx, R, (author)In the development of materials used for constructing aircraft, progress has been made in the production, certification and implementation of materials such as Carbon Fibre Reinforced Polymer (CFRP) and Glass Laminate Aluminium Reinforced Epoxy (GLARE). The state-of-the-art in joining techniques however, has not changed much: fastening is still...master thesis 2017
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Righi, R. (author)In order to use composite materials in automotive production while ensuring that passengers safety it is crucial to fully understand the strain rate effect on their mechanical properties.This study implements a strain rate dependent 3-point bending test setup for a high rate servo-hydraulic testing machine. A finite element model to simulate...master thesis 2017
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Maljaars, P.J. (author), Grasso, Nicola (author), Kaminski, M.L. (author), Lafeber, Wim (author)This paper presents numerical and experimental results for the validation of a coupled Boundary Element Method (BEM)-Finite Element Method (FEM) simulation for uniform flows. In the first part of the paper the numerical models and the BEM-FEM coupling are presented. A large part of the paper is dedicated to the validation procedure which has...conference paper 2017
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Wang, Haoyu (author), Markine, V.L. (author), Liu, X. (author)Transition zones in railway tracks are the locations with considerable changes in the vertical support structures. Due to the differential stiffness and settlement in the open track and the engineering structure resulting in the dynamic amplification of the wheel forces, track settlement is usually observed in the approaching zones. The...journal article 2017
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Eleftheroglou, N. (author), Zarouchas, D. (author), Loutas, T. (author)This study focused on the in-situ fatigue damage assessment of open-hole carbon/epoxy coupons using Acoustic Emission (AE) and Digital Image Correlation (DIC) techniques. Constant amplitude fatigue tests were performed and the main objective was to investigate the damage process, the degradation process of the fatigue modules and to identify...conference paper 2016
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Zhou, Y. (author)Ship grounding decreases the strength of ship hull structures once plastic deformation occurs during the event. In practice of ship societies, current method of determining residual strength of ship hull structures after grounding is to totally remove the plastically damaged parts. As plastically deformed part of ship hull structures might still...master thesis 2015
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