This study investigates the time-dependent long-term creep strain in a composite cylinder made of glass/vinylester with a unidirectional ply. The cylinder is subjected to an internal pressure and the boundary condition is free–free and acts as thermal insulation. The classical lamination theory (CLT) is used to derive the governing equations as a second-order equation to determine the radial, c...

A preliminary study at the institut National de l'Environnement Industriel et des Risques (INERIS) examined the dissolution of three man-made vitreous fiber samples (glasswool, rockwool, glass microfibers: JM 100) after intraperitoneal injections in male Wistar rats. The chemical composition of the original fibers was determined by inductively coupled plasma spectrometry (ICP). The urine of the...

Generation of well-dispersed, well-characterized fibers is important in toxicology studies. A vortex-tube shaking method is investigated using glass fibers to characterize the generated aerosol. Controlling parameters that were studied included initial batch amounts of glass fibers, preparation of the powder (e.g., preshaking), humidity, and airflow rate. Total fiber number concentrations and a...

*Correspondence: Guoping Dong and Jianrong Qiu, State Key Laboratory of Luminescent Materials and Device, School of Materials Science and Engineering, South China University of Technology, Wushan Road 381, Tianhe District, Guangzhou, Guangzhou 510640, China e-mail: [email protected]; [email protected] Quantum dot (QD)-doped glasses have been the hotspot for their excellent electronic and optical pr...

Abstract A hybrid composite reinforced by aramid, glass and carbon fibers processed with integrated vacuum infusion is studied in this paper. Reasons why the suffers from warpage after post-curing are analyzed. Such deformation restrained adjusting thickness ratio of fibers. Results indicate that a constant areal density, minimum 0.28 when surface layer to back 1.46.

The dissolution of a range of glass fibers including commercial glass and mineral wools has been studied using a modification of Gamble's solution in a flow system at pH 7.4 and 37 degrees C. Dissolution has been followed by weight loss, effluent analysis, and morphology change of fibers and bulk glass. Flow per glass surface area can strongly affect both dissolution rate and morphology due to ...

The effect of polymeric coatings on the static fatigue of double-coated optical fibers is investigated. A closed form solution of the tensile stress in the glass fiber under the action of a constant tensile force in the fiber’s axial direction is obtained using viscoelastic theory. The tensile force is applied to the glass fiber and polymeric coatings. The applied tensile fore is gradually tran...

In the present research work, the flexural modulus and strength of glass fiber-epoxy resin and carbon fiber-epoxy resin composites have been enhanced through fiber tension during curing of the polymeric resin. This study showed that the tension applied on the fibers increased the flexural modulus of the glass-epoxy composites up to 12% and the flexural strength up to 19%. The flexural modulus a...

Quest for producing lightweight and biodegradable materials has encouraged researchers to replace synthetic fibers with natural fibers. Hence a study is made investigate the effects of introducing secondary reinforcement (natural fibers), stacking sequence, addition graphite particles on mechanical characteristics water uptakes along diffusivity hybrid (glass\jute) composites. Different weight ...