This paper is focused on fastened hybrid busbars made from copper and aluminium with the purpose of analysing influence steel bolts, their tightening torque surface condition sheets electric current flow resistance joints. The methodology combines experimentation unit cells that are representative joints electro-mechanical numerical simulation using a finite element computer program developed b...

In this research, the influence of bolt preload on the fatigue strength of 2024-T3 aluminium alloy double lap bolted joints has been studied experimentally and numerically. To do so, three sets of the specimens were prepared and each of them subjected to tightening torque of 1,2.5 and 5 N-m and then fatigue tests were conducted under various cyclic axial load levels. In the numerical method, th...

The heating phenomenon of connector terminals in converter stations has become increasingly common, it a serious safety hazared affecting the operation UHV lines. This paper determined overlapping model Al plate-Al plate based on stations, conducted tests which included disassembly and assembly contact surface roughness impact test, pressing force electric composite grease anti-loosening measur...

Orthodontic mini-implants were recently developed and have been widely used in clinics. However, loosening of mini-implants, as well as infection and swelling of mucosal tissue at the placement site, are often observed during orthodontic treatment. Thus, clinical indices are greatly needed for the safe use of orthodontic mini-implants. This article presents information on mini-implants and offe...

In reciprocating engines, connecting rod cap and bolts are critical as they exposed to varying loads under different operating conditions. This paper focused on the failure of a 1.5 dci K9K diesel engine. As result engine for approximately 378400 km, was broken, reasons bolt were investigated. The designed in accordance with dimensions SolidWorks software then exported ANSYS stress fatigue anal...

PURPOSE Screwed joints are widely used in implant dentistry, and their failure is a significant problem that may be related to loss of preload. Preload is the compressive force generated across a joint when a screw is tightened and is responsible for keeping a joint closed. For a given torque, preload is limited by the frictional resistance of the contacting screw threads, flange, and opposing ...