Rheological Models of the Materials for the Road System in the Compaction Process
Journal Title: Romanian Journal of Acoustics and Vibration - Year 2014, Vol 11, Issue 2
Abstract
This paper presents a simplified theory of compaction based on idealized rheological models that allow to make preliminary determinations of characteristic parameters which in turn are used to determine other parameters[1]. For the compaction study is considered that the land is semi-infinite, homogeneous and isotropic, and the limit of elasticity is infinitely large [2;3]. Initially must be considered the fundamental mechanical properties of the land: elasticity, viscosity, plasticity.
Authors and Affiliations
Sergiu BEJAN
Investigation Composite Materials for its Sound Absorption Properties
This paper presents research on determining the sound absorption coefficient depending on frequency, for each sample, thus determining the sound absorption capacity of each obtained material. Materials were made from par...
THE SOMMERFELD EFFECT
The Sommerfeld effect is a universal phenomenon which appears as a result of the law of energy conservation. Arnold Sommerfeld discovered this phenomenon in 1902, while making an experiment with a cantilever beam connect...
Experimental Investigation of the Reverberation Time Inside a Complex Geometry Indoor Space
The paper outlines the interest towards reverberation time which is an acoustic parameter that can influence how a speech is perceived in different parts of a room. If for a rectangular shaped rooms Sabine’s formulas are...
Acoustical Materials – Sound Absorbing Materials Made of Pine Sawdust
In this paper different type of acoustical materials, like absorptive barrier materials, silencers, damping treatments and vibration isolators will be described and compared. The influence of the structure and way of pla...
Ultrasonic Attenuation and Velocity in Steel Standard Reference Blocks
In this paper, using two sets of reference steel blocks (area-amplitude and distance-amplitude) to investigate a modified method to verify the linearity of the system of instruments used in the ultrasonic inspection. The...