The various criteria used for graduating the thickness of violin plates are discussed. These are shown apparently to be conflicting. A case is made that the flexural stiffness of the plates should be given priority. A simple indirect method is given for finding the flexural stiffness of the plates without the need to flex them in the hands or to apply forces and measure deflections. The method ...

In the current paper the results of a numerical simulation that were verified by a well instrumented experimental procedure for studying the arching effect over a trapdoor in sand is presented. To simulate this phenomenon with continuum mechanics, the experimental procedure is modeled in ABAQUS code using stress dependent hardening in elastic state and plastic strain dependent frictional harden...

Exposure to UV light can cause damage DNA strands, but also be used as a disinfectant. This study sought investigate how UV-C affected the growth rate of Begonia dregei and arching. The plants were split into 4 different treatment groups, with each group containing one Each was treated certain amount time using box before they allowed grow under ideal conditions. Once done treatment, grown in i...

in this study, the mechanical behavior of vanyar dam was evaluated at the end of construction. a two-dimensional numerical analysis was conducted based on a finite element method on the largest cross-section of the dam. the data recorded by the instruments located in the largest cross-section were compared with the results of the numerical analysis at the place of instruments. the settlement, p...

this paper discusses the arching effect as the formation of a stable arch in granular materials. for this aim, a developed trapdoor apparatus is designed in order to investigate the arch dimensions in term of the internal friction angle, average size and base angle of materials. observations show that for all tested granular ensembles, width and height of the arch increase with an increase in t...

Load transformation from the yielding part of soil to adjacent is known as arching effect, which plays an important role in design various geotechnical infrastructures. Terzaghi’s trapdoor test was milestone development theories on arching. The research earth pressure problem presented this paper using three-dimensional (3D) discrete element method (DEM). Five 3D models with different heights a...