Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Amir, Yosef Grant, Douglas Triscari, Andrew |
| Copyright Year | 2012 |
| Abstract | Stiffness analysis of bolted joints is essential for predicting the behavior of bolted assemblies subjected to axial loading. The traditional method of calculating bolt stiffness is to model the bolt as if it consisted of a number of individual elements under tension; each element is substituted by cylindrical bodies of various lengths and cross sections, and the stiffness of these bodies is calculated by simple, closed-form formulas. A difficulty with this technique is the substitution of the bolt head which has different boundary conditions than the rest of the body elements of the bolt. The bolt head deforms as a result of contact with the joint member, and consequently develops bearing stress under preload while the rest of the bolt elements experience pure tension. The traditional method to account for bolt head stiffness is to replace the head with a cylinder having a diameter equal to that of the bolt and an equivalent length equal to a fraction of the bolt’s diameter (d). VDI 2230 [1] proposes for the hex head an equivalent cylinder of length 0.5d, and for the socket head a length of 0.4d. This paper presents a finite element-based study performed for five different bolt head styles (hex, hex flange, socket, socket countersunk, and button), and reports the appropriate fraction of head diameter for each style. The head styles for which the equivalent lengths were obtained conform to ISO 4014, 4162, 4762, 10642 and 7380. This paper also reports on the experimental work that was undertaken to validate the calculated results. |
| Starting Page | 789 |
| Ending Page | 800 |
| Page Count | 12 |
| File Format | |
| ISBN | 9780791845196 |
| DOI | 10.1115/IMECE2012-85150 |
| Volume Number | Volume 3: Design, Materials and Manufacturing, Parts A, B, and C |
| Conference Proceedings | ASME 2012 International Mechanical Engineering Congress and Exposition |
| Language | English |
| Publisher Date | 2012-11-09 |
| Publisher Place | Houston, Texas, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Cross section (physics) Bearings Bolted joints Flanges Boundary-value problems Stiffness Tension Stress Cylinders |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| 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 |
|
Loading...
|