scholarly journals PERANCANGAN DAN ANALISIS STRUKTUR POROS BOOM BARRIER GATE MENGGUNAKAN PERANGKAT LUNAK SOLID WORKS

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Levin Halim
Keyword(s):  
Shear Stress ◽  
Maximum Shear Stress ◽  
Stress Theory ◽  
Solid Works

Gerbang penghalang merupakan sebuah alat untuk mengatur keluar masuk kendaraan ke dalam sebuah area yang dapat dikontrol secara elektrik. Pada jurnal ini dijabarkan desain gerbang penghalang dengan mekanisme pergerakan rocker crank dengan per tarik sebagai pengimbang beban. Dari desain konsep dilakukan analisis maximum shear stress theory dan faktor keamanan terhadap kemampuan poros untuk menahan tegangan geser dan tegangan puntir dari beban yang ada. Terdapat beberapa kriteria utama pada perancangan barrier gate seperti aman, perawatan mudah, biaya murah serta kemungkinan dapat dibuat, dan seluruh kriteria tersebut dapat terpenuhi

scholarly journals Anisotropic Yield Criterion under the Maximum Shear Stress Theory

1970 ◽  
Vol 13 (61) ◽  
pp. 825-836
Author(s):  
Hisashi IGAKI ◽  
Masakatsu SUGIMOTO ◽  
Koichi SAITO
Keyword(s):  
Shear Stress ◽  
Yield Criterion ◽  
Maximum Shear Stress ◽  
Stress Theory ◽  
Anisotropic Yield Criterion

scholarly journals Maximum Shear Stress Theory for Anisotropic Metals

1966 ◽  
Vol 32 (234) ◽  
pp. 203-208
Author(s):  
Koichi SAITO ◽  
Hisashi IGAKI ◽  
Masakatsu SUGIMOTO
Keyword(s):  
Shear Stress ◽  
Maximum Shear Stress ◽  
Stress Theory

scholarly journals Studying the performance of fully encapsulated rock bolts with modified structural elements

2021 ◽  
Author(s):  
Jianhang Chen ◽  
Hongbao Zhao ◽  
Fulian He ◽  
Junwen Zhang ◽  
Kangming Tao
Keyword(s):  
Shear Stress ◽  
Load Transfer ◽  
Maximum Shear Stress ◽  
Coupling Model ◽  
Numerical Approach ◽  
Rock Bolt ◽  
Structural Elements ◽  
Rock Bolts ◽  
Two Stage ◽  
Bolt Diameter

AbstractNumerical simulation is a useful tool in investigating the loading performance of rock bolts. The cable structural elements (cableSELs) in FLAC3D are commonly adopted to simulate rock bolts to solve geotechnical issues. In this study, the bonding performance of the interface between the rock bolt and the grout material was simulated with a two-stage shearing coupling model. Furthermore, the FISH language was used to incorporate this two-stage shear coupling model into FLAC3D to modify the current cableSELs. Comparison was performed between numerical and experimental results to confirm that the numerical approach can properly simulate the loading performance of rock bolts. Based on the modified cableSELs, the influence of the bolt diameter on the performance of rock bolts and the shear stress propagation along the interface between the bolt and the grout were studied. The simulation results indicated that the load transfer capacity of rock bolts rose with the rock bolt diameter apparently. With the bolt diameter increasing, the performance of the rock bolting system was likely to change from the ductile behaviour to the brittle behaviour. Moreover, after the rock bolt was loaded, the position where the maximum shear stress occurred was variable. Specifically, with the continuous loading, it shifted from the rock bolt loaded end to the other end.

Flow and Thermal Fields in a Pendant Droplet Moving on Lyophobic Surface

2010 ◽  
Author(s):  
Basant Singh Sikarwar ◽  
K. Muralidhar ◽  
Sameer Khandekar
Keyword(s):  
Heat Transfer ◽  
Contact Angle ◽  
Reynolds Number ◽  
Shear Stress ◽  
Heat Transfer Coefficient ◽  
Wall Shear Stress ◽  
Transfer Coefficient ◽  
Maximum Shear Stress ◽  
Computational Domain ◽  
Wall Shear

Clusters of liquid drops growing and moving on physically or chemically textured lyophobic surfaces are encountered in drop-wise mode of vapor condensation. As opposed to film-wise condensation, drops permit a large heat transfer coefficient and are hence attractive. However, the temporal sustainability of drop formation on a surface is a challenging task, primarily because the sliding drops eventually leach away the lyophobicity promoter layer. Assuming that there is no chemical reaction between the promoter and the condensing liquid, the wall shear stress (viscous resistance) is the prime parameter for controlling physical leaching. The dynamic shape of individual droplets, as they form and roll/slide on such surfaces, determines the effective shear interaction at the wall. Given a shear stress distribution of an individual droplet, the net effect of droplet ensemble can be determined using the time averaged population density during condensation. In this paper, we solve the Navier-Stokes and the energy equation in three-dimensions on an unstructured tetrahedral grid representing the computational domain corresponding to an isolated pendant droplet sliding on a lyophobic substrate. We correlate the droplet Reynolds number (Re = 10–500, based on droplet hydraulic diameter), contact angle and shape of droplet with wall shear stress and heat transfer coefficient. The simulations presented here are for Prandtl Number (Pr) = 5.8. We see that, both Poiseuille number (Po) and Nusselt number (Nu), increase with increasing the droplet Reynolds number. The maximum shear stress as well as heat transfer occurs at the droplet corners. For a given droplet volume, increasing contact angle decreases the transport coefficients.

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