Results 61 to 70 of about 671,009 (191)

Investigation Some of Physical and Mechanical Properties of Polypropylene Fiber/ Wood /Cement Composites [PDF]

open access: yesIranian Journal of Wood and Paper Industries, 2016
In this study, some of the physical and mechanical properties of polypropylene fiber/ wood fiber/ cement composites were investigated. For this aim, three levels of polypropylene fiber, namely 2 wt.%, 3 wt.% and 4 wt.% were mixed with 15 wt.% of wood ...
hamed Younesi-Kordkheili   +2 more
doaj  

Application of the dual integrated force method to the analysis of the off-axis three-point flexure test of unidirectional composites

open access: yesJournal of Composite Materials, 2015
This paper shows the use of the dual integrated force method in the finite element method and its application to unidirectional composite laminates. This method was developed by SN Patnaik for isotropic materials, considering not only the equilibrium equations but also the compatibility conditions.
Adarraga Usabiaga, María Iciar   +4 more
openaire   +3 more sources

An Experimental Study on Shear and Flexural Strengthening of Concrete Beams Using GFRP Composites [PDF]

open access: yesarXiv, 2018
Maintaining and restoring buildings has nowadays gained special importance due to its high cost. Various different methods have been presented regarding this matter due to the above-mentioned reason and also the ever-growing demand for the engineers and the building-industry specialists for strengthening, restoring, and improving the concrete ...
arxiv  

Derivation of a poroelastic flexural shell model [PDF]

open access: yesarXiv, 2015
In this paper we investigate the limit behavior of the solution to quasi-static Biot's equations in thin poroelastic flexural shells as the thickness of the shell tends to zero and extend the results obtained for the poroelastic plate by Marciniak-Czochra and Mikeli\'c.
arxiv  

Impact of buckypaper on the mechanical properties and failure modes of composites [PDF]

open access: yesIn 38th Technical Conference of the American Society for Composites, ASC 2023 (pp. 2281-2297). DEStech Publications
Recently, there has been an interest in the incorporation of buckypaper (BP), or carbon nanotube (CNT) membranes, in composite laminates. Research has shown that using BP in contrast to nanotube doped resin enables the introduction of a higher CNT weight fraction which offers multiple benefits including higher piezo resistivity for health monitoring ...
arxiv   +1 more source

Non-destructive testing of composite plates by holographic vibrometry [PDF]

open access: yes, 2014
We report on a wide-field optical monitoring method for revealing local delaminations in sandwich-type composite plates at video-rate by holographic vibrometry. Non-contact measurements of low frequency flexural waves is performed with time-averaged heterodyne holography.
arxiv   +1 more source

Study on Shear Behavior of Concrete-polymer Cement Mortar at Elevated Temperature

open access: yesCivil Engineering Dimension, 2016
In this experimental and analytical work, interfacial shear strengths were evaluated at material and member level. Bi-surface shear strength was performed at material level and three-point bending test was conducted at member level.
Khuram Rashid, Tamon Ueda, Dawei Zhang
doaj  

Effect of Silicon Carbide Fiber Length on the Flexural Strength and Flexural Modulus of Short Silicon Carbide Fiber-Reinforced Resin

open access: yesJournal of Functional Biomaterials
Silicon carbide fibers have superior flexural properties and chemical stability compared to glass fibers. We investigated the flexural strength and modulus of an experimental, short silicon carbide fiber-reinforced resin.
Norimasa Taka   +4 more
doaj   +1 more source

Influence of light-curing units on the flexural strength Influence of light-curing units on the flexural strength and flexural modulus of different resin composites and flexural modulus of different resin composites

open access: yesBrazilian Journal of Oral Sciences, 2016
Aim: This study aimed to evaluate the flexural strength and flexural modulus of different resin composites (MasterFill, Opallis, Z250, Supreme) after photoactivation with quartz-tungsten-halogen (QTH - XL2500) or light-emitting diode (LED - Radii and ...
William Cunha Brandt   +4 more
doaj   +1 more source

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