Results 101 to 110 of about 5,214,614 (337)

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

open access: yesAdvanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali   +5 more
wiley   +1 more source

NON-LINEAR ANALYSIS OF CONTINUOUS COMPOSITE CONCRETE–STEEL BEAMS UNDER CYCLIC LOADINGS

open access: yesDiyala Journal of Engineering Sciences, 2011
Non-linear analysis of continuous composite concrete–steel beams under cyclic loadings has been investigated in this paper. A three-dimensional finite element analysis (FE) ANSYS computer program(ANSYS version 9.0) was conducted to investigate the ...
Ali Laftah Abbas
doaj   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig   +2 more
wiley   +1 more source

Free vibration of a three-layered sandwich beam using the dynamic stiffness method and experiment [PDF]

open access: yes, 2007
In this paper, an accurate dynamic stiffness model for a three-layered sandwich beam of unequal thicknesses is developed and subsequently used to investigate its free vibration characteristics.
Morishima, R.   +4 more
core   +1 more source

Composite Beam Under Different Monotonic and Dynamic Loading: A Review

open access: yesJournal of Engineering and Sustainable Development
In the modern world, composite construction is widely used due to its exceptional properties in reducing the structure's weight and carrying load. This paper reviews some researchers' earlier investigations in the past two decades.
Ayad Hasan Jawad, Hesham A.Numan
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Flexural–torsional buckling of thin-walled composite box beams [PDF]

open access: yes, 2007
Buckling of an axially loaded thin-walled laminated composite is studied. A general analytical model applicable to the flexural, torsional and flexural–torsional buckling of a thin-walled composite box beam subjected to axial load is developed.
Lee, Jaehong, Vo, Thuc
core   +1 more source

Damage detection and localization in composite beam structures based on vibration analysis

open access: yes, 2016
This paper presents an approach of inverse damage detection and localization based on model reduction. The problem is formulated as an inverse problem where an optimization algorithm is used to minimize the cost function expressed as the normalized ...
S. Khatir   +4 more
semanticscholar   +1 more source

Self‐Cleaning Sensor Surfaces for Long‐Term Environmental Monitoring

open access: yesAdvanced Engineering Materials, EarlyView.
Long‐term use of unattended outdoor sensors without soiling or biofouling is achieved through generation of a micro‐ and nanorough cuvette surface by combing hydrophobic nanoparticles with fluorinated polymers, crosslinked and surface‐attached through CHic chemistry. The coating demonstrates self‐cleaning behavior and prolonged outdoor stability, which
Sanam Kumari Rajak   +4 more
wiley   +1 more source

Experimental Analysis of Eccentric Compression Performance of Larch Wood-Steel Composite Columns

open access: yesAdvances in Civil Engineering, 2019
In this paper, a new steel-wood composite column with an H-shaped section was proposed. In order to form an H-shaped cross section, a larch board is fixed on the outer surface of the left and right edges of a hot-rolled H-beam by using physical ...
Junren Wang   +3 more
doaj   +1 more source

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