Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Kacem, Ahmed Krichen, Abdelkader Manach, Pierre Yves |
| Copyright Year | 2015 |
| Abstract | Hole-flanging which is the manufacturing operation used to form an integral collar around the periphery of a hole in a metal sheet is investigated. In this work, a 2-mm-thick 1000 series aluminium alloy sheet which is widely used in industrial applications was considered. The process is studied by means of numerical simulations and compared with experimental data. Three-dimensional elastic-plastic finite element models using various anisotropy assumptions (i.e., isotropy, normal, and orthotropic anisotropy) and based on isotropic yield criterion (von Mises) and anisotropic yield criterion (Hill 1948) were used. For the orthotropic anisotropy assumption, two approaches were tried to identify the r values, (i.e., the direct measurement of strains and the fitting of stress-strain curves). Experiments were conducted to assess the numerical accuracy of the different anisotropy assumptions. The study focused on the comparison of the geometrical and forming parameters predicted by the different models. It was found that the model based on the orthotropic anisotropy assumption with r values determined by fitting the stress-strain curves precisely predicts the experimental results (e.g., circularity error, thinning, punch load, critical value of the clearance-thickness ratio). However, a numerical model based on the normal anisotropy assumption can also be pertinent to accurately predict the forming parameters (e.g., punch load and critical value of the clearance-thickness ratio). In conclusion, the use of the Hill 1948 yield criterion can lead to accurate results for the majority of geometrical and forming parameters allowing accurate designs of many parts obtained by the hole-flanging process. |
| Starting Page | 11 |
| Ending Page | 19 |
| Page Count | 9 |
| File Format | |
| ISSN | 02683768 |
| Journal | The International Journal of Advanced Manufacturing Technology |
| Volume Number | 80 |
| Issue Number | 1-4 |
| e-ISSN | 14333015 |
| Language | English |
| Publisher | Springer London |
| Publisher Date | 2015-03-17 |
| Publisher Place | London |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Sheet metal forming Hole-flanging Finite elements Plastic anisotropy Circularity error Industrial and Production Engineering Production/Logistics/Supply Chain Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design |
| Content Type | Text |
| Resource Type | Article |
| Subject | Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software |
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...
|