Results 1 to 10 of about 5,762,967 (332)

Void Content Minimization in Vacuum Infusion (VI) via Effective Degassing. [PDF]

Polymers (Basel), 2021
This paper addresses the major concern which component porosity represents in Vacuum Infusion (VI) manufacturing due to resin gelation at pressures close to absolute vacuum. Degassing is a fundamental step to minimize or even avoid resin outgassing and enhance dissolution of voids created during preform impregnation. The efficacy of different degassing
Juan J, Silva A, Tornero JA, Gámez J, Salán N.   +4 more
europepmc   +7 more sources

Void Content Determination of Carbon Fiber Reinforced Polymers: A Comparison between Destructive and Non-Destructive Methods. [PDF]

Polymers (Basel), 2022
The properties of composite materials are highly dependent on the fiber and matrix fraction and on the porosity resulting from micro voids. This paper addresses void content characterization and the constituent content of composite materials by resorting
Elkolali M, Nogueira LP, Rønning PO, Alcocer A.   +3 more
europepmc   +4 more sources

Investigation of void content in Borassus flabellifer fiber/epoxy bio-nanocomposite using hyperparameter tuned ANN and response surface methodology optimisation [PDF]

Scientific Reports
Void development is one of the main problems faced by natural fiber polymer composites since it severely affects their physical and mechanical properties. It limits these composites for use in construction, aerospace, automotive and marine uses.
Suresh Thirupathi, Venkatachalam Gopalan, Elango Mallichetty   +2 more
doaj   +3 more sources

Void Content, Tensile, Vibration and Acoustic Properties of Kenaf/Bamboo Fiber Reinforced Epoxy Hybrid Composites. [PDF]

Materials (Basel), 2019
This study aims to investigate the void content, tensile, vibration and acoustic properties of kenaf/bamboo fiber reinforced epoxy hybrid composites. The composites were made using the hand lay-up method.
Ismail AS, Jawaid M, Naveen J.
europepmc   +4 more sources

Void and Moisture Content of Fiber Reinforced Composites

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2021
In this paper, a short review on the void and moisture content studies of fiber reinforced composites for both, synthetic and natural based fibers are presented. The review summarized the research papers in which include experimental and theoretical works that related to the void and moisture content studies.
null Nurul Zuhairah Mahmud Zuhudi, null Afiq Faizul Zulkifli, null Muzafar Zulkifli, null Ahmad Naim Ahmad Yahaya, null Nurhayati Mohd Nur, null Khairul Dahri Mohd Aris   +5 more
openaire   +3 more sources

Manufacturing composite laminates with controlled void content through process control

Journal of Reinforced Plastics and Composites, 2023
To investigate and evaluate the effect of void features on the mechanical performance of composite materials, it is important to be able to manufacture samples with a range of controlled void content. A criterion of less than 2% of porosity is typically acceptable for industry.
Iryna Tretiak, Luiz F Kawashita, Stephen R Hallett   +2 more
openaire   +3 more sources

Comparing Design Void Content with Actual Void Content of Laboratory Prepared Pervious Concrete

Materials Sciences and Applications, 2018
The goal of this study was to compare the predicted void content with the actual void content of pervious concrete cylinders. All pervious concrete systems are designed with a void content in mind to facilitate a specific permeability; however, due to variable placing techniques and inherent issues with the material, the actual in place void content ...
Anthony Torres, Cristián Gaedicke, Jiong Hu, Rupesh Bejugam, Sarah McMasters   +4 more
openaire   +2 more sources

Assessment of In Situ Compactness and Air Void Content of New Asphalt Layers Using Ground-Penetrating Radar Measurements

Applied Sciences
This paper deals with the possibilities of ground-penetrating radar (GPR)-based quality control testing, which was demonstrated on an experimental road section of a ~220–240 m long Hungarian residential street. The measurements and their assessment aimed
Péter Primusz, Enas Abdelsamei, Ahmed M. Ali, György Sipos, István Fi, András Herceg, Csaba Tóth   +6 more
doaj   +2 more sources

Calculation and Characterization of Air Void in Mortar of the Hot Mix Asphalt (HMA) Based on CT Scanning and Image Analysis Methods

Applied Sciences, 2023
The air void content is one of the most important volumetric properties of asphalt matrixes, such as asphalt mixtures or mortars, because it can greatly affect the performance of the matrix.
Li-Heng Shu, Fu-Jian Ni, Ji-Wang Jiang, Zi-Li Zhao, Zhao-Yuan Guo   +4 more
doaj   +1 more source

The Void Galaxy Survey [PDF]

, 2011
The Void Galaxy Survey (VGS) is a multi-wavelength program to study $\sim$60 void galaxies. Each has been selected from the deepest interior regions of identified voids in the SDSS redshift survey on the basis of a unique geometric technique, with no a ...
A Dekel, A Szomoru, AV Macció, CB Brook, D Kereš, E Platen, F Hoyle, H Mathis, J Binney, J Dubinski, J Einasto, JL Tinker, JR Bond, K Kreckel, K Stanonik, M Hoeft, MA Aragón-Calvo, NA Grogin, PJE Peebles, PJE Peebles, PW Hodge, R Weygaert van de, RB Larson, RK Sheth, RP Kirshner, RR Rojas, S Gottlöber, SG Patiri, SR Furlanetto, V Lapparent de, WE Schaap   +30 more
core   +11 more sources