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January 2019 - August 2022
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Publications (6)
In the present paper, continuous Ytterbium Laser Systems (YLS) fiber laser hardening of cylindrical AISI 4340 steel specimens was studied using experimental and statistical analyses. Three laser parameters, namely laser power, laser feed speed, and sample rotation speed were selected to evaluate their influence on the depth of the hardened zone and...
A non-Fickian model of moisture diffusion in a hemp/polypropylene composite allows better prediction of moisture uptake and its related effect on mechanical properties. Industry has a growing interest in using natural fiber composites (NFCs) in manufacturing. For instance, in 2006 it was reported that in 2004 and 2005 the German car industry was al...
The exposition of thermoplastic composites reinforced with natural fibers to moisture and heat is likely to lower their mechanical properties and restrain their use in the design of parts. The present work is focussed on investigating the effects of hygrothermal aging on the mechanical behaviour of injected polypropylene reinforced with short hemp...
The kinetic of isothermal water absorption of injected polypropylene reinforced short hemp fibers specimens is studied for four immersion temperatures (20, 40, 60, 80°C). The experimental results do not obey the Fick model based on a constant coefficient of diffusion and the time to reach the saturation level of water absorption decreases significa...
