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Torque and tension relationships for threaded fasteners
Lo, Ro-Shin
Lo, Ro-Shin
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t1967_Lo.pdf
Adobe PDF, 2.34 MB
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1967-05-01
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Thesis
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Abstract
Purpose
The purpose of this thesis is to determine the relationship between torque required to tighten bolts, and the tension induced in the shank of the bolts along the axis, by a unique method of measuring the deformation.
2. Scope
(a) The scope of this thesis is to review the existing literature concerning experiments or theoretical investigations of the torque-tension
relationship.
(b) Derive an analytic equation of the relationship between torque and tension in the bolt.
(c) Design and perform an experiment to verify the torque-tension relationship equation by determining the coefficients of friction.
Table of Contents
I. Introduction. 1. purpose ; 2. scope -- II. Survey of literature. 1. experimental investigation ; 2. bolt torque relationships -- III. Derivation of equations. 1. $T_b - P$ relationship ; 2. $T_t - p$ relationship -- Description of experiment. 1. materials, equipment and instruments ; 2. elongation device ; 3. preparation of test ; 4. experimental procedure ; 5. tension-elongation chart -- V. Discussion and conclusion. 1. discussion ; 2. conclusion -- references -- Appendices. A. test speciment data ; B. calibration data ; C. P-$\delta$, $\delta$ and T-T' charts ; D. test data
Description
Thesis (M.S.)-- Wichita State Universtiy, College of Engineering, Dept. of Mechanical Engineering
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Wichita State University
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Wichita State University