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Now showing items 11-20 of 63
Mechanical and microstructure characterization of hard nanostructured N-bearing thin coating
(
Associazione Italiana di Metallurgia
, 2015 , Article)
Tools for machining are made of hard steels and cemented carbide (WC-Co). For specialized applications, such as aluminium
machining, diamond or polycrystalline cubic boron nitride are also used. The main problem with ...
New vehicle bumper design for pedestrian protection during impact
(
Institute of Physics Publishing
, 2015 , Conference Paper)
This study discusses the influence of the active bumper design on the performance of the selected current bumper in terms of pedestrian protection by using finite element method. The legform impactor is used to test the ...
Numerical simulation of a novel expanded metal tubular structure for crashworthiness application
(
Institute of Physics Publishing
, 2015 , Conference Paper)
Search for new geometries and materials that would serve in crashworthiness applications is a cumulative process. Recent studies investigated the performance of expanded metal tubes and the possible ways to enhance its ...
Hierarchical honeycomb auxetic metamaterials
(
Nature Publishing Group
, 2015 , Article)
Most conventional materials expand in transverse directions when they are compressed uniaxially resulting in the familiar positive Poisson’s ratio. Here we develop a new class of two dimensional (2D) metamaterials with ...
Effect of water absorption on the mechanical properties of long date palm leaf fiber reinforced epoxy composites
(
American Scientific Publishers
, 2015 , Article)
This paper examines the effect of the first 24 hours water absorption on the mechanical properties and morphology of the long date palm leave fiber (DPLF) and unidirectional reinforced epoxy composites. The mechanical ...
Wear resistance investigation of titanium nitride-based coatings
(
Elsevier Ltd
, 2015 , Article)
The wear of components while they are in service is a predominant factor controlling the life of machine components. Metal parts are often damaged because of wear-driven failures causing the loss of dimensions and ...
TiO2 nanotube coating on stainless steel 304 for biomedical applications
(
Elsevier Ltd
, 2015 , Article)
The present study describes the anodic growth of TiO2 nanotube thin layer on stainless steel 304 in ethylene glycol/water/ammonium fluoride electrolyte. In this regard, pure titanium was coated on stainless steel 304 ...
Optimal design of hybrid renewable energy systems in buildings with low to high renewable energy ratio
(
Elsevier Ltd
, 2015 , Article)
We develop a simulation-based meta-heuristic approach that determines the optimal size of a hybrid renewable energy system for residential buildings. This multi-objective optimization problem requires the advancement of a ...
Effect of microstructural evolution on wettability and tribological behavior of TiO2 nanotubular arrays coated on Ti–6Al–4V
(
Elsevier Ltd
, 2015 , Article)
Self-organized TiO2 nanotubular arrays were fabricated by electrochemical anodization of Ti–6Al–4V plates in an NH4F/H3PO4 electrolyte. The effect of microstructural evolutions on the wettability and tribological behavior ...
Spiderweb Honeycombs
(
Elsevier Ltd
, 2015 , Article)
Small and large deformation in-plane elastic response of a new class of hierarchical fractal-like honeycombs inspired by the topology of the “spiderweb” were investigated through analytical modeling, detailed numerical ...