Today’s demand for environmentally friendly and energy-efficient solutions to the construction industry has driven researchers match natural resources with traditional technics develop new building technologies. However, there are literature limitations about correlation of fiber-matrix interface failure fibers in mortar plates, which hinders advances understanding mechanical properties these c...

In the frame of this work, a robotic Automated fiber placement - AFP in situ process was applied to obtain high quality thermoplastic composite structures. (AFP) with laser assisted heating (LAFP) is an attractive manufacturing technology for development lightweight and performance components, primarily aerospace, automotive, military many other dominant industries worldwide. For samples lamina...

OBJECTIVES To evaluate and compare the flexural strength and the elastic moduli of three provisional crown materials (methyl methacrylate based autopolymerized resin, bis acryl composite based autopolymerized resin and urethane dimethacrylate based light polymerized resin) after storing in artificial saliva and testing at intervals of 24 hours and 7 days. STUDY DESIGN A metal master mould wit...

OBJECTIVE The purpose of this study was to assess the effect of food-simulating liquids on the flexural strength of a methacrylate-based and a silorane-based resin composite. MATERIALS AND METHODS In this in vitro study, sixty specimens of Filtek P90 and Filtek Z350 composite were prepared in a customized mold (2 × 2 × 25 mm). The specimens of each composite were divided into five subgroups a...

The European LIFE Project, Repolyuse – “REcovery of POLYurethane for reUSE in eco-efficient materials” seeks to solve the environmental challenge resource scarcity and waste management order mitigate effects climate change. material is a prefabricated gypsum mortar form removable roofing plate which residues rigid polyurethane foam have been added. That system reduces weight plates about 30%. i...

A new result enables direct calculation of thermoelastic damping in vibrating elastic solids. The mechanism for energy loss is thermal diffusion caused by inhomogeneous deformation, flexure in thin plates. The general result is combined with the Kirchhoff assumption to obtain a new equation for the flexural vibration of thin plates incorporating thermoelastic loss as a damping term. The thermal...

This paper explores the performance of low-cost unidirectional carbon fibre towpregs with respect to line production speed and volume fraction. Using an automated line, were produced at different speeds, resulting in modified fractions. The used manufacture composite plates, which then tested evaluate mechanical performance. straightness interfacial void ratio plates determined by statistical a...

PURPOSE The aim of this study was to clarify the effect of addition of glass fibers and titanium dioxide nanoparticles to the conventional acrylic resin. The tested parameters were monomer release, deflection at fracture, flexural strength, flexural modulus, and toughness. The modified acrylic resin groups were compared to the conventional unmodified and high impact types. The correlation betwe...

The biaxial flexural strength and cyclic fatigue biaxial flexural strength of CAD/CAM ceramics polished with #220, 400, 600 and 1000 diamond pads were measured in an effort to determine the effect of surface roughness on fatigue behavior of dental ceramics. The surface roughness was improved after polishing with a smaller diamond grain pad. The flexural strengths of the specimens polished with ...

This research program is intended to verify the influence of using distributed external U-wrap CFRP anchorage to shift the failure mode from overall debonding to sectional flexural failure for concrete beams externally bonded with CFRP sheets. Premature cover delamination and FRP debonding are predominant failure modes in FRP flexural strengthening that may be delayed or prevented by using FRP ...