NDLI: Evaluation of the Method for Lowering Stress Concentration at the Thread Root of Bolted Joints With Modifications of Nut Shape

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Fukuoka, T.
Copyright Year	1997
Abstract	Many studies have been devoted to investigate how the maximum stress occurred in the bolted joint could be reduced. Patterson and Kenny suggest that a modified nut with a straight bevel at the bearing surface is effective. However, they only dealt with M30, and estimations on the nut geometry had not been necessarily sufficient. In this study, an extensive finite element approach for solving general multi-body contact problem is proposed by incorporating a “regularization method” into stiffness matrices with singularity involved; thus, numerical analyses are executed to accurately determine the optimal shape of the modified nut for various design factors. A modified nut with a curved bevel is also treated, and it is concluded that the modified nuts are significantly effective for bolts with larger nominal diameter and fine pitch, and are practically useful compared to pitch modification and tapered thread methods.
Starting Page	1
Ending Page	9
Page Count	9
File Format	PDF
ISSN	00949930
e-ISSN	15288978
Journal	Journal of Pressure Vessel Technology
Volume Number	119
Issue Number	1
DOI	10.1115/1.2842262
Language	English
Publisher	The American Society of Mechanical Engineers
Publisher Date	1997-02-01
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Approximation Bearings Bolted joints Design Finite element analysis Geometry Numerical analysis Shapes Stiffness Stress Stress concentration Thread
Content Type	Text
Resource Type	Article
Subject	Safety, Risk, Reliability and Quality Mechanical Engineering Mechanics of Materials

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Finite Element Analysis of the Cyclic Stress Amplitude of Threaded Fasteners Using Helical Thread Models

Mechanical Behaviors of Bolted Joint in Various Clamping Configurations

Nonlinear Effects on the Stiffness of Bolted Joints

Effects of Bolt Threads on the Stiffness of Bolted Joints

Nonlinear Axial Stiffness Characteristics of Axisymmetric Bolted Joints

Nonlinear Deformation Behavior of Clamped Bolted Joints Under a Separating Service Load

Achieving Uniform Clamp Load in Gasketed Bolted Joints Using a Nonlinear Finite Element Model

On the Use of Shape Memory Alloy Studs to Recover Load Loss in Bolted Joints

Load Distribution Between Threads in Threaded Connections

Evaluation of the Method for Lowering Stress Concentration at the Thread Root of Bolted Joints With Modifications of Nut Shape

Similar Documents

Finite Element Analysis of the Cyclic Stress Amplitude of Threaded Fasteners Using Helical Thread Models

Mechanical Behaviors of Bolted Joint in Various Clamping Configurations

Nonlinear Effects on the Stiffness of Bolted Joints

Effects of Bolt Threads on the Stiffness of Bolted Joints

Nonlinear Axial Stiffness Characteristics of Axisymmetric Bolted Joints

Nonlinear Deformation Behavior of Clamped Bolted Joints Under a Separating Service Load

Achieving Uniform Clamp Load in Gasketed Bolted Joints Using a Nonlinear Finite Element Model

On the Use of Shape Memory Alloy Studs to Recover Load Loss in Bolted Joints

Load Distribution Between Threads in Threaded Connections

Evaluation of the Method for Lowering Stress Concentration at the Thread Root of Bolted Joints With Modifications of Nut Shape