2301 Improving Research of Tightening Reliability on Bolted Joints : A Study on Optimum Tightening Torque Using Ellipse of Confidence Limit

Hareyama, Soichi; Nagashima, K.; Nakashima, Makoto; Takada, Ryuji; Shimodaira, Takayuki; Yamaguchi, Shoji; Hoshi, Akio

doi:10.1299/jsmemdt.2010.10.191

Public

2301 Improving Research of Tightening Reliability on Bolted Joints : A Study on Optimum Tightening Torque Using Ellipse of Confidence Limit

Published in Kiso Junkatsu Sekkei Bumon Kouenkai kouen rombunshuu/Kiso Junkatsu Sekkei Bumon Koenkai koen ronbunshu • Jan 1, 2010

Authors:

Soichi Hareyama

K. Nagashima

Makoto Nakashima

Abstract

For tightening bolted joints, the calibrated wrench method is widely used in practice. In this method the axial tension of a bolt is controlled by measuring the wrench torque. Also widely know the high initial axial tension assure the tightening reliability. However the method is not so accurate sin...

Subject

Wrench

Torque

Structural engineering

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