Results 31 to 40 of about 175 (166)
Polymer Composites, EarlyView.Mitigation of surface whitening in CF/PPS laminates via thermal annealing and quantitative image‐based assessment. ABSTRACT Surface whitening is a manufacturing‐induced surface defect in thermoplastic composites, resulting from non‐uniform shrinkage and near‐surface resin instability during cooling.
JongHun Baek +6 more
wiley +1 more source
Numerical Study of Composite Concrete Castellated Double Channel Beams with Strengthening Techniques
Journal of EngineeringCurrent numerical research was devoted to investigating the effect of castellated steel beams without and with strengthening. The composite concrete asymmetrical double hot rolled steel channels bolted back to back to obtain a built-up I-shape form are ...
Nihad Yaseen Abbas +1 more
doaj +1 more source
Load carrying capacity of castellated I-beam in the elastoplastic formulation problem
MATEC Web of Conferences, 2018 Developed a method for calculating the load carrying capacity of castellated I-beam with ideal elastoplastic material model in ANSYS Mechanical. The method verified in the test problem of bending a rectangular beam.
Goryachevskiy Oleg
doaj +1 more source
Journal of the Mechanical Behavior of Materials, 2022 This research investigated the influence of water-absorbent polymer balls (WAPB) on reinforced concrete beams’ structural behavior experimentally. Four self-compacted reinforced concrete beams of identical geometric layouts 150 mm × 200 mm × 1,500 mm ...
Hussen Nibras Farooq +1 more
doaj +1 more source
Polymer Composites, EarlyView.Fabrication of XNBR nanocomposites reinforced with Zn single‐site decorated sepiolite nanofibers. The resulting composites exhibit high mechanical strength and self‐healing performance, driven by dynamic interactions between the Zn single sites and the XNBR chains (inset).
Paolo Valagussa +10 more
wiley +1 more source
Revista Ingeniería de Construcción, 2020 This work presents a numeric study using the Finite Element Method for castellated beams manufactured from Brazilian steel rolled I-sections, which collapse by web post buckling.
W. Vieira +3 more
doaj +4 more sources
Efficient Cost-Based Design Optimization of Castellated Beams with Circular and Hexagonal Openings Using the Grey Wolf Algorithm [PDF]
Fayoum University Journal of EngineeringThis study investigates the cost-based optimal design of castellated steel beams with circular and hexagonal web openings using the Grey Wolf Optimizer (GWO) algorithm.
Marwan Albayati
doaj +1 more source
Polymer Engineering &Science, EarlyView.Ball‐milling promotes uniform POSS dispersion in the TPU matrix, markedly improving the mechanical performance of TPU‐POSS composites. ABSTRACT We synthesized TPU/POSS composites through a two‐step process involving the ball milling of POSS to reduce its particle size, followed by in situ polymerization of TPU to reinforce the material.
Sakrit Hait +2 more
wiley +1 more source
Web rotational stiffness of continuous steel-concrete composite castellated beams
Fracture and Structural Integrity, 2019 Continuous composite beams can present a global instability known as lateral distortional buckling (LDB). The design code EN 1994-1-1:2004 provides a procedure for the verification of this ultimate limit state, in which the resistant bending moment is ...
Carla Cristiane Silva +4 more
doaj +3 more sources
CORRELATION OF EFFECTIVE INERTIA OF CASTELLATED BEAMS WITH SPAN-TO-DEPTH RATIO
Jurnal PensilMaterial efficiency in structural systems can be enhanced through cross-sectional optimization of structural elements, one of which is the use of castellated steel beams.
Sutedjo Krisnadi +3 more
doaj +1 more source