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Simulation of Response of Composite Structures Under Fire Exposure

Fatigue Damage and Failure for Notched Plates of Short Glass Fiber Reinforced Polypropylene

Time-Temperature-Water Absorption Dependent Fatigue Strength of Plain-Woven CFRP Laminates

Effect of Electric Fields on the Rheological Properties of the Isotropic Phase of phic/p-Xylene Solutions

The effect of high ac electric fields upon a liquid crystalline polymer solution, poly(n-hexyl isocyanate) in p-xylene, is examined. The results show that the solutions exhibit an increase in rheological properties proportional to the strength of the field at concentrations well below those exhibiting liquid crystalli…

Zone Method for Representing Relaxation Characteristics of Viscoelastic Materials

Exponential integral functions were fitted to relaxation data obtained from tensile and shear loading of an asphalt-sand mixture at different temperatures. This approach yields a better fit to the experimental data than the traditional Prony series and provides physical insight into essential characteristics of the re…

Petrography and hydric characterization of the quarry material of the varieties of Borriol Stone (Castellón)

Borriol stone is one of the most widely used and well-known building materials in the Spanish province of Castellapn. It is a cretaceous limestone quarried in the El Abeller quarry, Borriol (Castellón). Since the seventeenth century it has been used in several historic buildings to be found both in the city of Castell…

Response of CFRP Laminates under High Strain Rate Compression until Failure

Congresos y seminarios

A study of Pr-Fe-B magnets produced by a low-cost powder method and the hydrogen decrepitation process

Sintered Pr-based magnets were produced using a new laboratory technique for powder handling. Unlike the conventional procedure for preparing sintered permanent magnets in the laboratory, the powder technique used in this investigation does not require a glove box. The effects of processing parameters on the magnetic…

Erosion-oxidation behavior of thermal sprayed Ni20Cr alloy and WC and Cr3C2 cermet coatings

An apparatus to conduct high temperature erosion-oxidation studies up to 850 °C and with particle impact velocities up to 15 m.s-1 was designed and constructed in the Corrosion Laboratories of IPEN. The erosion-oxidation behavior of high velocity oxy fuel (HVOF) sprayed alloy and cermet coatings of Ni20Cr, WC 20Cr7Ni…

Micromechanics-Based Stress Rupture Life Prediction Of Polymer Composites

Analytical Modelling of the Metal Vessel Reinforced by Filament Winding for Hydrogen Storage

Corrosion performance of Al-Si-Cu hypereutectic alloys in a synthetic condensed automotive solution

In this investigation the corrosion resistance of four Al-Si hypereutectic alloys in a solution typical of condensate from automotive fuel combustion products, and referred to here as synthetic condensed automotive solution, has been studied. Three commercial alloys that are used for cylinder liners, and a laboratory…

Electrochemical behavior of steel-FeNbC composites used in the production of oxygen

The electrocatalytic properties of steel-FeNbC composites were evaluated after potentiostatic ageing with the purpose of establishing the potential use of such materials as electrodes for the industrial production of oxygen. The effect of processing parameters, involved in the production of the composites by powder me…

Performance of a Venturi scrubber in the removal of fine powder from a confined gas stream

Experimental results on the performance of a laboratory scale rectangular Venturi scrubber in the removal of fine mineral particles from a confined air stream are presented, and a new correlation is proposed and evaluated. The scrubber was operated with air velocities in the throat varying from 58 m/s to 75 m/s and li…

Transverse rupture strength of a PM tool steel

Powder Metallurgy has been reported as a suitable alternate processing route for the manufacture of tool steels. The advantage of this technique is in being able to obtain a refined and more uniform microstructure that improves properties such high wear resistance and toughness. A molybdenum containing AISI M3:2 tool…

Effect of molybdate on phosphating of Nd-Fe-B magnets for corrosion protection

Nd-Fe-B magnets are highly susceptible to corrosion and need protection against environment attack. The use of organic coatings is one of the main methods of corrosion protection of these materials. Data related to the effect of conversion coatings, such as phosphating, on corrosion performance of these magnets is sti…

Long-Term Behaviour of GRP Pipes

Structure and properties of selected cemented carbides and cermets covered with TiN/(Ti,Al,Si)N/TiN coatings obtained by the cathodic arc evaporation process

This study presents the results of microstructural examinations, mechanical tests and service performance tests carried out on thin TiN/(Ti,Al,Si)N/TiN wear resistance coatings obtained by the CAE process on cermet and cemented carbide substrates. Microstructural examinations of the applied coatings and the substrate…

A Dedicated Computational Strategy for Composite Pipes: Basic Principle and Illustration