Results 81 to 90 of about 3,370,694 (310)

Experimental Investigation of the Fatigue Behavior of Basalt Fiber Reinforced Polymer Grid-Concrete Interface

Advances in Materials Science and Engineering, 2020
Fatigue behavior is an important factor for mechanical analysis of concrete members reinforced by basalt fiber reinforced polymer (BFRP) grid and polymer cement mortar (PCM) and plays a critical role in ensuring the safety of reinforced concrete bridges ...
Bo Wen, Chunfeng Wan, Lin Liu, Da Fang, Caiqian Yang   +4 more
doaj   +1 more source

Learning from Sparse Datasets: Predicting Concrete's Strength by Machine Learning [PDF]

arXiv, 2020
Despite enormous efforts over the last decades to establish the relationship between concrete proportioning and strength, a robust knowledge-based model for accurate concrete strength predictions is still lacking. As an alternative to physical or chemical-based models, data-driven machine learning (ML) methods offer a new solution to this problem ...
arxiv  

Proceedings of the Sustainable Concrete Materials and Structures in Construction 2020 [PDF]

, 2020
Seminar on Sustainable Concrete Materials and Structures in Concrete Construction 2020 was held virtually for the first time on 24 August 2020. This event was organized by the Faculty of Civil Engineering and Built Environment (FKAAB), Universiti Tun ...
Mohd Zuki, Sharifah Salwa, Mokhatar, Shahrul Niza, Shahidan, Shahiron, Wan Ibrahim, Mohd Haziman   +3 more
core   +1 more source

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

Advanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör, Moritz Grünewald, Kevin Popp, Ihsan Murat Kusoglu, Stephan Barcikowski, Stan Gann, Thomas Schuffenhauer, Martin Bastian, Claas Bierwisch, Johannes Rudloff   +9 more
wiley   +1 more source

Elastic Stability of Perforated Plates Strengthened with FRP under Uniaxial Compression

Applied Sciences, 2017
Openings are frequently introduced in plates for the purpose of inspection, maintenance, service, etc. The presence of openings reduces the buckling and ultimate capacity significantly, and pasting fiber-reinforced polymers (FRP) is an ideal technique ...
Xin Tao, Shuangyin Cao, Long Zhang
doaj   +1 more source

Effects of continuous and pulsating water jet on CNT/concrete composite [PDF]

, 2017
This paper presents first results of the study of the resistance of carbon nanotube concrete composite (CNT/concrete composite) to the action of continuous and pulsating water jets.
Bodnárová, Lenka, Foldyna, Josef, Foldyna, Vladimír, Hlaváček, Petr, Jarolím, Tomáš, Klich, Jiří, Klichová, Dagmar, Mamulová Kutláková, Kateřina   +7 more
core   +1 more source

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing – Part I: Surface, Flowability, and Optical Properties of SiC, Si, and Si3N4 Coated Metal Powders

Advanced Engineering Materials, EarlyView.
Herein, silicon‐based nanoparticle coatings on X2CrNiMo17‐12‐2 metal powder are presented. The coating process scale, process parameters, nanoparticle size (65–200 nm) as well as the coating amount are discussed regarding powder properties. The surface roughness affects the flowability, while reflectance depends on the coating material and surface ...
Arne Lüddecke, Nick Hantke, Harald Zetzener, Jan T. Sehrt, Arno Kwade   +4 more
wiley   +1 more source

Transient Current Responses of Organic Electrochemical Transistors: Evaluating Ion Diffusion, Chemical Capacitance, and Series Elements

Advanced Functional Materials, EarlyView.
This work establishes a general theory of the current transient of ionic‐electronic transistors under a step of gate voltage. The dominant effect is a transient charging of the channel by diffusion of ions. The additional influence of electrolyte capacitance and resistance splits the fundamental time constant of diffusion into two different components.
Juan Bisquert, Nir Tessler
wiley   +1 more source

Concrete manufacture with un-graded recycled aggregates [PDF]

, 2009
Purpose – The purpose of this paper is to investigate whether concrete that includes un-graded recycled aggregates can be manufactured to a comparable strength to concrete manufactured from virgin aggregates.
Coventry, Kathryn, Graham, Sue, Richardson, Alan   +2 more
core   +1 more source

Shape‐Stabilization of Phase Change Materials with Carbon‐Conscious Poly(hydroxy)Urethane Foams

Advanced Functional Materials, EarlyView.
Poly(hydroxy)urethane (PHU) foam, derivable from carbon dioxide (CO2) and bio‐based resources, is a promising material platform for shape‐stabilizing phase change materials (PCMs). We demonstrate the encapsulation of both paraffins and calcium chloride hexahydrate in PHU foam, achieving 48 stable thermal cycles by introducing 5 wt.% barium carbonate ...
Minjung Lee, Samuel D. Dahlhauser, Chloe Lucci, Bryon S. Donohoe, Robert D. Allen, Nicholas A. Rorrer   +5 more
wiley   +1 more source