The CLT-concrete composite (CCC) solution is appealing since it possesses many advantages of a timber-concrete flooring system with small thickness. However, the vibration criteria usually an obstacle in design process, especially more onerous for long-span floor. present study focus on dynamic properties (fundamental frequency and damping) CCC beams featured notched connectors. Three were fabr...

Abstract The term “over-skidding” indicates that the cage rotational speed ratio exceeds theoretical value as ball purely rolls on raceway. Different from skidding phenomenon occurs in low-load and high-speed bearing, over-skidding usually large-size angular contact bearings, it is still difficult to suppress under high load conditions. main forms of damage raceway by are spinning gyro slip. To...

Shell-type nanostructures have recently attracted a lot of attention due to their several applications. The surface stress effect plays an important role in the mechanical behavior of such structures because of their large surface-to-volume ratio. In this paper, an analytical approach is presented for analyzing the geometrically nonlinear free vibrations of cylindrical nanoshells. In order ...

It has been revealed that the surface stress effect plays an important role in the mechanical behavior ofstructures (such as bending, buckling and vibration) when their dimensions are on the order ofnanometer. In addition, recent advances in nanotechnology have proposed several applications fornanoscale shells in different fields. Hence, in the present article, within the framework of surfaceel...

Polycrystalline Cu2FeSnS4 materials (abbreviated CFTS) were synthesized by a hydrothermal route implementing one-step thermal treatment to measure dependence on different reaction times in the stabilization and structural, vibrational, optoelectronic properties. The structural results have shown tetragonal system with I-42m spatial group. vibrational analysis Raman spectroscopy allowed identifi...