Without more details, I can only guess the first peak is the first harmonic, second peak is the second harmonic and so on..
Look into these resources to understand more about fft
1. http://www.feadomain.com/download.php?view.27
2. http://www.feadomain.com/download.php?view.26
3...
It is difficult to come up with an absolute percentage. The corrrelation depends on the geometery, material properties and boundary conditions. Also, there is always some variability due to test setup. Considering all this, less than 20% variation for linear static analysis and 10% variation for...
You can start here
Advanced Electromagnetic Analysis of Passive and Active Planar Structures-Tullio Rozzi, Marco Farina
EMC Analysis Methods and Computational Models-Frederick M. Tesche, et al
http://www.feadomain.com/e107_plugins/custompages/EMAG.php
Deep Drawing is a highly non-linear phenomena. You will be working in the plastic portion of the material curve. Also, you have to understand the metal forming process itself(blank holding pressure, friction between die elements etc.) to provide proper inputs. However there are services which...
One more source is MSC.data mart. You have to register to acess the data. Depending on what material you are looking for you may find it on Dr.Socie's website:
www. fatiguecalculator.com
Also, try here
http://www.feadomain.com/e107_plugins/custompages/Fatigue.php
vikrameng,
As you may already realized, you have start from basics to understand fatigue. There are some resources on the web to get you started
http://www.fatiguecalculator.com/
http://www.feadomain.com/Fatigue.html
Also look at smartsim.org. If you google you can find some resources on...
One more piece of information. If you want to just learn FEA you can buy a personal edition of Proe and Pro Mechanica for $250. But be aware this version of Pro/Mechanica has basic statics, normal modes, thermal and contact. It can do a optimization also. Here is the link...
Maybe these articles wil help you
http://www.machinedesign.com/asp/viewSelectedArticle.asp?strArticleId=55362&strSite=MDSite
http://www.deskeng.com/articles/03/aug/software/main_dig.htm
http://www.designnews.com/article/CA109189.html?text=cosmos
http://www.feadomain.com/General.html