Showing papers in "Materials & Design in 2006"

TL;DR: In this paper, the tensile and flexural properties of polypropylene composites as a function of volume fraction were investigated, and the flexural strength of the composites containing 5.4% volume fraction was found to be higher than that of pure Polypropylene resin by 5.1%.

TL;DR: In this paper, the experiments of tensile and flexural (three-point bending) tests were carried out using natural fibre with composite materials (Musaceae/epoxy), and three samples prepared from woven banana fiber composites of different geometries were used in this research.

TL;DR: In this article, a feed forward neural network model is developed exploiting experimental measurements from the surfaces in the mold cavity, and a genetic algorithm coupled with neural network is employed to find optimum cutting parameters leading to minimum surface roughness without any constraint.

TL;DR: In this paper, the effect of heat treatment on investment cast Ti-6Al-4V alloy was studied using X-ray diffraction analysis, light microscopy and quantitative metallography together with hardness and room temperature tensile tests.

TL;DR: In this paper, an attempt has been made to assess the influence of machining parameters on the machining of glass fiber-reinforced polymers (GFRP) composite materials in many different engineering fields.

TL;DR: In this article, a series of mold analyses were performed to exploit the warpage and sink index data to solve the quality problem occurring the injection-molded thermoplastic parts.

TL;DR: In this paper, a new approach has been carried out for the use of the ELECTRE: ELimination et Choix Traduisant la Realite (ELimination and Choice Expressing the Reality) model in material selection.

TL;DR: In this paper, the effects of welding current and time on the tensile-peel strength and tensile shear strength of welding joint in electrical resistance spot welding of chromided micro-alloyed steel sheets having 0.8 mm thickness and galvanized chromided chromided nano-alloysed steel sheet having 1.0 mm thickness were investigated.

TL;DR: In this article, the energy absorption in a foam-filled thin-walled circular Al tube was investigated based on the experimentally determined strengthening coefficient of filling using Al and polystyrene closed-cell foams with three different densities.

TL;DR: In this paper, the effect of SiC particles on the aging behavior, mechanical properties and wear resistance of 6061 aluminum alloy made by squeeze casting method was investigated, and the results indicated that a homogenous distribution of siC particles in the aluminum matrix, which is almost free of pores, can be obtained by squeeze-casting method.

TL;DR: In this article, the experimental and numerical quasi-static crushing responses of extruded closed cell polystyrene foam-filled thin-walled aluminum tubes were investigated using the explicit finite element code PAM-CRASH™.

TL;DR: In this paper, the authors demonstrate the need to perform a sensitivity analysis when a single environmental score is applied during the process of selecting materials in order to enhance the environmental performance of products.

TL;DR: In this paper, a modification method to manufacture high conductivity (HC) and extra high conductivities (EHC) wires with high strength properties from AA-6201 redraw rod has been presented.

TL;DR: In this paper, the authors present a risk/benefit assessment of a product, the company manufacturing the product, and the manufacturing site to evaluate the social, economic and environmental risks and benefits associated with the product.

TL;DR: Osteolysis and aseptic loosening are the major causes of failure of total hip replacements and particles released from the implant during articulation have been found to be a clinically relevant size (0.1–10 μm).

TL;DR: In this paper, a horizontal ball mill was designed and manufactured for the production of Al-Al 2 O 3 composite materials by mechanical alloying method and its microstructure was investigated by scanning electron microscope.

TL;DR: In this paper, the relationship between materials flow and defects was firstly built, and a model of the weld formation depending on the welding parameters was brought forward, and gave reasonable advice for choosing right parameters to avoid defects.

TL;DR: In this paper, it was pointed out that friction stir welding capability especially brass plates which are 3mm in thickness can be used for fusion welding of brass materials and the experiment conditions were determined and friction stir weld procedures were applied to brass plates in different rotation and welding speeds.

TL;DR: In this article, the influence of alloying elements on wear behavior of binary and multi-component cast hypereutectic aluminium alloys has been reported, and wear surface and wear debris was conducted to analyse the mode of wear and wear mechanism.

TL;DR: In this article, metal-matrix composites of an aluminum-silicon based alloy (LM6) and Al2O3 particles with volume fractions of 0.05, 0.10 and 0.15 and in size of 44, 85 and 125μm were produced using pressure die-casting technique.

TL;DR: In this article, the influence of silane coated glass fibres added to polypropylene (PP) and polyamide 6 (PA6) plastics was investigated, and the results showed that the improvement in the mechanical strength did not show a linear relationship with the fibre weight fraction on account of inhomogeneous fibre distribution and fibre fracture.

TL;DR: In this article, a powder metallurgy method was used to construct a copper matrix composite reinforced with SiC and graphite (Gr) particles, and the graphite particles simultaneously decreased the wear rates of the composite and the counterpart and effectively avoided the occurrence of severe wear up to 723 K.

TL;DR: Altinkok et al. as mentioned in this paper used a back-propagation neural network that uses a gradient descent learning algorithm to predict the density and tensile strength properties of reinforced metal matrix composites.

TL;DR: In this paper, the thickness, microhardness and microstructure of the boride layer of cast irons were investigated and the wear behavior of the irons was investigated on a pin-on disk test apparatus.

TL;DR: In this paper, a newly developed Ni-Cr-CoCo-Mo-Nb-Ti-Al superalloy was developed for ultra-supercritical boilers with steam temperatures up to 700°C.

TL;DR: In this article, the joining of duplex stainless steel (DSS) to carbon steel (CS) was attempted by shielded metal arc welding, with E2209 and E309 electrodes.

TL;DR: In this article, the authors investigated the effect of urea-formaldehyde ratio, reaction temperature, reaction time and particle size on hardness and bending strength of composite particleboard production.

TL;DR: An approach to predict the initiation and propagation of damage in composite laminated plates is brought forward in this paper, which is based on contact constraint introduced by penalty function method. But this approach is limited to the case of carbon-epoxy composites.

TL;DR: In this paper, an experimental study was carried out to examine the effect of different clearances on smooth-sheared depth, burr height and blanking force, and the results were in agreement with the results of previous theoretical and experimental work in the literature.

TL;DR: In this article, a theoretical model based on artificial neural network (ANN) and genetic algorithm (GA) has been developed to optimize effective parameters on porosity formation in Al-Si casting alloys.