Search Results - "Ferreira, José A. M."

Physical Simulation of Mold Steels Repaired by Laser Beam Fusion Deposition by de Jesus, Joel, Ferreira, José A. M, Capela, Carlos, da Costa, José D. M, Borrego, Luís

“…In the present work, a study of the fatigue strength of two materials widely used in the production of molds, namely, the AISI P20 and AISI H13 steels, is…”
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Influence of Local Properties on Fatigue Crack Growth of Laser Butt Welds in Thin Plates of High-Strength Low-Alloy Steel by Riofrío, Patricio G., de Jesus, Joel, Ferreira, José A. M., Capela, Carlos

“…In this work, local properties such as hardness and fatigue crack grow rate in the heat-affected zone of four laser-welded butt joints in thin high-strength…”
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Influence of Deposition Plane Angle and Saline Corrosion on Fatigue Crack Growth in Maraging Steel Components Produced by Laser Powder Bed Fusion by Fernandes, Rui F., de Jesus, Joel, Borrego, Luís, Vilhena, Luís, Ramalho, Amílcar, Ferreira, José A. M.

“…Maraging steels are used in several industries, namely in the molds industry. The determination of fatigue crack propagation resistance in 18Ni300 maraging…”
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Fatigue Behavior of Hybrid Components Containing Maraging Steel Parts Produced by Laser Powder Bed Fusion by Santos, Luís, de Jesus, Joel, Borrego, Luís, Ferreira, José A. M., Fernandes, Rui F., da Costa, José D. M., Capela, Carlos

“…This investigation concerns about of fatigue behavior under controlled loading and under strain control for hybrid specimens with parts produced with…”
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Imperfections and Modelling of the Weld Bead Profile of Laser Butt Joints in HSLA Steel Thin Plate by Riofrío, Patricio G., Ferreira, José A. M., Capela, Carlos A.

“…In many applications that use high strength steels, structural integrity depends greatly on weld quality. Imperfections and the weld bead geometry are…”
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Fatigue Damage Characterization by NDT in Polypropylene/Glass Fibre Composites by Reis, Paulo N. B., Ferreira, José A. M., Richardson, Mel O. W.

“…This paper presents the results of a study on glass-fibre-reinforced polypropylene composite in which the fatigue damage was investigated in terms of residual…”
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Effects of Shot-Peening and Stress Ratio on the Fatigue Crack Propagation of AL 7475-T7351 Specimens by Ferreira, Natália, Antunes, Pedro, Ferreira, José, D. M. Costa, José, Capela, Carlos

“…The approach to engineering design based on the assumption that flaws can exist in any structure and cracks propagate in service, is commonly used in aerospace…”
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Fatigue crack propagation along interfaces of selective laser melting steel hybrid parts by Santos, Luis M.S., Ferreira, José A.M., Borrego, Luis P., Costa, Jose D., Capela, Carlos, Jesus, Joel

“…Selective laser melting (SLM) is an emerging additive manufacturing technology, capable of producing complex geometry components. The current work studied both…”
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Interlaminar fracture in woven carbon/epoxy laminates by Reis, Paulo N.B., Ferreira, José A.M., Costa, José D.M., Pereira, António M.

“…This paper describes an experimental study developed to characterize the mode I and mode II fracture toughness of carbon/epoxy woven composites, using DCB and…”
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Impact response of balsa core sandwiches by Mortas, Nurdane, N.B. Reis, Paulo, A.M. Ferreira, José

“…The benefits of resins nano-enhanced on the impact response of sandwich composites made by fiber glass/epoxy skins and balsa wood core were studied…”
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Mechanical Characterization of Composites with Embedded Optical Fibers by Silva, José M.A., Devezas, Tessaleno C., Silva, AbíLio P., Ferreira, José A.M.

“…The purpose of this investigation is to evaluate quantitatively and comparatively the effect of embedding optical fibers (OF) on the mechanical behavior of a…”
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Fatigue behaviour of T welded joints rehabilitated by tungsten inert gas and plasma dressing by Ramalho, Armando L., Ferreira, José A.M., Branco, Carlos A.G.M.

“…► This study addresses the use of improvement techniques for repair T welded joints. ► TIG and plasma arc re-melting are applied in joints with fatigue cracks…”
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Notch sensitivity and heat treatment effect on the fatigue behaviour of AlSi10Mg aluminium alloy processed by additive manufacturing by Fernandes, Rui F., Jesus, Joel S., Borrego, Luis P., Ferreira, José A.M., Neto, Diogo, Branco, Ricardo, Costa, José D.

“…•Monotonic/fatigue behaviour of notched samples after heat treatments is studied.•Heat treatments negatively impact monotonic but enhance fatigue…”
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Effect of annealing treatment on mechanical properties of 3D-Printed composites by Valvez, Sara, Reis, Paulo N.B., Ferreira, José A.M.

“…This study aims to analyse the annealing effect on the mechanical properties of PETG, carbon fibre reinforced PETG (PETG + CF) and Kevlar fibre reinforced PETG…”
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Fiber laser sensor based on a phase-shifted chirped grating for acoustic sensing of partial discharges by Lima, Sanderson E. U., Farias, Rubem G., Araújo, Francisco M., Ferreira, Luís A., Santos, José L., Miranda, Vladimiro, Frazão, Orlando

“…Acoustic emission monitoring is often used in the diagnosis of electrical and mechanical incipient faults in the high voltage apparatus. Partial discharges are…”
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Murine Typhus as a Cause of Cognitive Impairment: Case Report and a Review of the Literature by Carr, Silvana B., MD, Bergamo, Dale F., MD, Emmanuel, Patricia J., MD, Ferreira, Jose A., MD

“…Abstract Background Murine typhus is a systemic febrile illness caused by Rickettsia typhi , a gram-negative, obligate intracellular bacterium. It is found…”
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