Searched for: subject%3A%22ductility%22
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Wong, W.J. (author), Walters, C.L. (author)
High-strength steel beams are known to have less plastic rotation capacity than beams with lower yield strengths. This has been related to the decreased strain-hardening ability of high-strength steels, and various rules and standards for steel structures stipulate maximum limits on the allowable yield-to-tensile strength ratio ((Formula...
journal article 2023
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Prapavesis, Alexandros (author), Kopana, Penelope (author), Wu, Weijing (author), Soete, Jeroen (author), Mosleh, Yasmine (author), Van Vuure, Aart Willem (author)
In this study, the tensile and bending properties of silk fibre composites using three (0, 90) woven fabrics with different architectures are investigated. The tensile results show that the silk composites can achieve high strain to failure (more than 20%) and toughness (up to 13 MJ/m3), which can be further manipulated based on the architecture...
journal article 2023
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Xin, Haohui (author), Li, Jie (author), Veljkovic, M. (author), Liu, Yuqing (author), Sun, Qing (author)
Bolted joints in steel structures are generally subject to combined actions. The research on ultimate capacity of bolted joints under combined tension and shear actions, twin shear actions, and combined tension-twin shear actions is relatively limited. The aim of this paper is to calibrate the fracture locus of grade 10.9 bolts using the...
journal article 2022
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Gu, D. (author), Pan, Jinlong (author), Lukovic, M. (author), He, Jixuan (author)
Application of fiber-reinforced polymer (FRP) reinforcement in concrete beams may cause large deflection and crack width, as well as low shear capacity and ductility due to relatively small stiffness of FRP materials. To avoid these unfavorable factors and evaluate the shear behavior of FRP-reinforced structural members, a high-performance...
journal article 2022
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Xia, P. (author), Vercruysse, F. (author), Celada-Casero, Carola (author), Verleysen, P. (author), Petrov, R.H. (author), Sabirov, I. (author), Molina-Aldareguia, J. M. (author), Smith, A. (author), Linke, B. (author), Frometa, D. (author)
The article focuses on the effect of alloying and microstructure on formability of advanced high strength steels (AHSSs) processed via quenching and partitioning (Q&P). Three different Q&P steels with different combination of alloying elements and volume fraction of retained austenite are subjected to uniaxial tensile and Nakajima...
journal article 2022
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Li, Jie (author), Xin, Haohui (author), Correia, J.H.G. (author), Berto, Filippo (author), Zhao, Bingzhen (author), Bo, Yanwei (author), Veljkovic, M. (author)
With the improvement of computational capability, finite element simulation is an increasingly practical method to accurately predict the ultimate capacity and ductile fracture behavior of high-strength bolts. However, the mesh size affects the results of FE simulations but related research on mesh size effects is relatively limited. In the...
journal article 2022
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Fotouhi, M. (author), Suwarta, Putu (author), Tabatabaeian, A. (author), Fotouhi, Sakineh (author), Jenkin, Ross (author), Jalalvand, Meisam (author), Wisnom, Michael R. (author)
This paper investigates the fatigue behaviour of pseudo-ductile Quasi-Isotropic (QI) interlayer hybrids with un-notched and open-hole configurations. Two different types of QI pseudo-ductile hybrids were evaluated; HighC, with carbon to glass thickness ratio of 0.29, that is made of thin-ply M46JB-carbon/epoxy and thin-ply Xstrand-glass/epoxy...
journal article 2022
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Lin, Yan (author), Qian, Chengduo (author), Shi, Jingtao (author), Zhang, Yuzhen (author), Ren, S. (author), Nan, Guozhi (author), Kong, Xiangjun (author), Fan, Weiyu (author)
Compared with traditional asphalt, emulsified asphalt occurs to be a better low-temperature usability and environmental adaptability, which can reduce environmental pollution and energy consuming during road construction. The low-temperature ductility is a very important indicator to evaluate the environmental adaptability of emulsified asphalt....
journal article 2022
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Xin, H. (author), Veljkovic, M. (author)
Predicting the ultimate capacity of components made of high strength steel (HSS) is a numerically challenging task. The fracture performance of HSS from different steel grades, producers, and manufacturing processes (rolling, cold forming, etc.) varies greatly. It is costly to conduct a series of experiments for each typical HSS structural...
journal article 2021
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Xin, Haohui (author), Veljkovic, M. (author), Correia, José A.F.O. (author), Berto, Filippo (author)
The ductile performance of high strength steel (HSS) from different steel grades, producers, manufacturing processes varies a lot. It is also difficult to conduct all kinds of reliable experiments to generate different stress status through different initial specimen geometries or by applying different load combinations in the civil...
journal article 2021
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Xin, Haohui (author), Correia, José A.F.O. (author), Veljkovic, M. (author), Berto, Filippo (author)
Accurately obtaining the material parameters of the damage model is very important for the ductile fracture simulation of steel structures made of high strength steel (HSS). The combination of micromechanics with the uncoupled phenomenological fracture model can be used to obtain the material parameters of ductile fracture locus only from the...
journal article 2021
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Mostofizadeh, S. (author)
Increase in computational power during recent years contributed to a significant development in numerical methods in mechanics. There are many methods developed that address various complex problems, yet modelling of initiation and propagation of failure in thin-walled structures requires further development. Among numerous challenges involved,...
doctoral thesis 2020
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Lavalette, N. (author), Bergsma, O.K. (author), Zarouchas, D. (author), Benedictus, R. (author)
Tubular adhesive joints, used in truss structures to join pultruded carbon fibre-reinforced polymer members to aluminium nodes, are modelled with varying dimensions. The numerical model uses a Cohesive Zone Modelling formulation with a trapezoidal traction-separation law for the adhesive layer, and experimental tests are carried to validate...
journal article 2020
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Yang, F. (author), Veljkovic, M. (author), Liu, Yuqing (author)
Numerical analyses incorporating appropriate damage models provide an opportunity to predict the strength and deformation capacity of steel structures. This paper presents a practical calibration for the ductile damage model of S355 and high-strength steel S690Q, S700MC, S960Q based on tensile coupon test results. A combined linear and power...
journal article 2020
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Chen, J. (author), Verberne, B. A. (author), Niemeijer, A. R. (author)
A (micro)physical understanding of the transition from frictional sliding to plastic or viscous flow has long been a challenge for earthquake cycle modeling. We have conducted ring-shear deformation experiments on layers of simulated calcite fault gouge under conditions close to the frictional-to-viscous transition previously established in...
journal article 2020
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Taumaturgo Mororo, L.A. (author), van der Meer, F.P. (author)
The Thick Level Set (TLS) method has been proposed as a new approach to the modeling of damage growth in solids. The fronts of damaged zones are implicitly represented as a level set of an auxiliary field whose evolution is accomplished by the level set method. The TLS model contains a characteristic length to obtain a non-local description...
journal article 2020
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Fotouhi, Mohamad (author), Jalalvand, Meisam (author), Saeedifar, M. (author), Xiao, Bill (author), Wisnom, Michael R (author)
The aim of this work was to investigate the effect of loading angle variation on the pseudo-ductility of quasi-isotropic (QI) hybrid composite laminates. Previously, hybrids of thin-ply carbon fibres and standard glass fibres were found to have an excellent pseudo-ductile behaviour both in unidirectional (UD) and QI configurations when subjected...
journal article 2020
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Guo, Wenqi (author), Su, Jing (author), Lu, Wenjun (author), Liebscher, Christian H. (author), Kirchlechner, Christoph (author), Ikeda, Yuji (author), Körmann, F.H.W. (author), Liu, Xuan (author), Xue, Yunfei (author), Dehm, Gerhard (author)
In conventional metallic materials, strength and ductility are mutually exclusive, referred to as strength-ductility trade-off. Here, we demonstrate an approach to improve the strength and ductility simultaneously by introducing micro-banding and the accumulation of a high density of dislocations in single-phase high-entropy alloys (HEAs). We...
journal article 2020
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Cao, Xiaoluo (author), Wu, Linmei (author), Li, Z. (author)
A computational model for studying the mechanical performance of steel-concrete columns under combined torsion is established via ABAQUS. The model is validated by experimental results. Through numerical simulations, the influence of the axial load ratio, torsion-bending ratio, concrete strength, steel ratio, longitudinal reinforcement ratio,...
journal article 2020
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Shakerifard, B. (author), Galan Lopez, J. (author), Kestens, L.A.I. (author)
The third generation of advanced high strength steels shows promising properties for automotive applications. The macroscopic mechanical response of this generation can be further improved by a better understanding of failure mechanisms on the microstructural level and micro-mechanical behavior under various loading conditions. In the current...
journal article 2020
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