tag:blogger.com,1999:blog-38392345996355594012024-02-20T18:30:42.655-08:00finite element analysischeyyarhttp://www.blogger.com/profile/15217348995509101076noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-3839234599635559401.post-48012069550829774642009-04-17T07:02:00.000-07:002009-04-17T07:03:57.971-07:00question-231.Define stiffness matrix.<br />32.Explain stiffness matrix and its special features.<br />33.determine the stiffness matrix for <br />(a)bar element <br />(b)truss element <br />(c)Beam element neglecting axial deformation.<br />34.Briefly explain the various attempts made to reduce memory requirement in storing stiffness matrix.<br />35.State the purpose of co-ordinate transformation matrix?<br />36.Mention the classification of elements based on the shapes?<br />37.Explain the terms:<br />(a)CST<br />(b)LST<br />(c)QST<br />38.Explain the term Continuity.<br />39.Explain the following terms: Nodes, Primary nodes, Secondary nodes and Internal nods.<br />40.Distinguish between higher order elements and lower order elements.<br />41.Draw a tri-nodded quadratic element.<br />42.Draw at least two Lagrange family rectangular elements.<br />43.Draw at least two Serendipity family rectangular elements.<br />44.Explain the LaGrange family of elements.<br />45.Explain the Serendipity family of elements.<br />46.Distinguish between LaGrange and Serendipity family of elements.<br />47.Draw the Pascal’s triangle for selection of interpolation polynomials.<br />48.Select a suitable polynomial with nine terms.<br />49.Define: Interpolation Function.<br />50.Classify the elements based on order of interpolation polynomials.<br />51.What are the polynomials preferred as the interpolation function.<br />52.Distinguish between Complex and Multiplex elements.<br />53.Mention the behavior of elements used for stress analysis.<br />54.Define: aspect ratio of an element.<br />55.State the significance of element distortion.<br />56.More element distortion is permitted in higher order element then the lower order element. Comment on the statement.<br />57.What is the ideal aspect ratio value for plane elements?<br />58.Mention the different methods of quantifying the element distortion.<br />59.Write short notes on: (a) selection of elements. (b) Element size and numbering.<br />60.Define: shape function.<br />61.State the requirement for a shape function.<br />62.what are the properties of shape functions<br />63.State and explain the convergence requirement of polynomial shape function.<br />64.Why are the polynomials preferred for shape function in FEM.?<br />65.What is axis symmetric element?cheyyarhttp://www.blogger.com/profile/15217348995509101076noreply@blogger.com0tag:blogger.com,1999:blog-3839234599635559401.post-69083348127583515152009-04-17T06:53:00.000-07:002009-04-17T06:55:45.303-07:00interview questions<meta equiv="Content-Type" content="text/html; charset=utf-8"><meta name="ProgId" content="Word.Document"><meta name="Generator" content="Microsoft Word 11"><meta name="Originator" content="Microsoft Word 11"><link rel="File-List" href="file:///C:%5CDOCUME%7E1%5Camma%5CLOCALS%7E1%5CTemp%5Cmsohtml1%5C01%5Cclip_filelist.xml"><!--[if gte mso 9]><xml> <w:worddocument> <w:view>Normal</w:View> <w:zoom>0</w:Zoom> <w:punctuationkerning/> <w:validateagainstschemas/> <w:saveifxmlinvalid>false</w:SaveIfXMLInvalid> <w:ignoremixedcontent>false</w:IgnoreMixedContent> <w:alwaysshowplaceholdertext>false</w:AlwaysShowPlaceholderText> <w:compatibility> <w:breakwrappedtables/> <w:snaptogridincell/> <w:wraptextwithpunct/> <w:useasianbreakrules/> <w:dontgrowautofit/> </w:Compatibility> <w:browserlevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--><!--[if gte mso 9]><xml> <w:latentstyles deflockedstate="false" latentstylecount="156"> </w:LatentStyles> </xml><![endif]--><style> <!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in; mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} /* List Definitions */ @list l0 {mso-list-id:2317977; mso-list-type:hybrid; mso-list-template-ids:513578244 67698703 -1458538346 67698715 67698703 67698713 67698715 67698703 67698713 67698715;} @list l0:level1 {mso-level-tab-stop:.5in; mso-level-number-position:left; text-indent:-.25in;} @list l0:level2 {mso-level-number-format:alpha-lower; mso-level-text:"\(%2\)"; mso-level-tab-stop:72.75pt; mso-level-number-position:left; margin-left:72.75pt; text-indent:-18.75pt;} ol {margin-bottom:0in;} ul {margin-bottom:0in;} --> </style><!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} </style> <![endif]--> <ol style="margin-top: 0in;" start="1" type="1"><li class="MsoNormal" style="line-height: 150%;">Define: finite element method.</li><li class="MsoNormal" style="line-height: 150%;">Finite element method is an approximate method (true/false). Also justify your answer.</li><li class="MsoNormal" style="line-height: 150%;">What are approximating functions?</li><li class="MsoNormal" style="line-height: 150%;">What are field variables?</li><li class="MsoNormal" style="line-height: 150%;">Name at least four FEA popular packages.</li><li class="MsoNormal" style="line-height: 150%;">Define: i. node ii. Element.</li><li class="MsoNormal" style="line-height: 150%;">Briefly explain the application of FEA for a stress analysis with an element.</li><li class="MsoNormal" style="line-height: 150%;">Compare between FEM and classical methods.</li><li class="MsoNormal" style="line-height: 150%;">Compare between FEM and FDM.</li><li class="MsoNormal" style="line-height: 150%;">When there are several FEA packages are available in that any need to study this method.</li><li class="MsoNormal" style="line-height: 150%;">Discuss the advantages and disadvantages of FEA.</li><li class="MsoNormal" style="line-height: 150%;">Explain the concept of FEM briefly and outline the procedure.</li><li class="MsoNormal" style="line-height: 150%;">Write the equation of equilibrium in plane stress condition.</li><li class="MsoNormal" style="line-height: 150%;">Draw a typical three dimensional element and indicate state of stress in their positive signs.</li><li class="MsoNormal" style="line-height: 150%;">Derive the equation of equilibrium in case of a two dimensional stress system.</li><li class="MsoNormal" style="line-height: 150%;">State and explain generalized hook’s law.</li><li class="MsoNormal" style="line-height: 150%;">Explain the term plane stress.</li><li class="MsoNormal" style="line-height: 150%;">Explain the term plane strain.</li><li class="MsoNormal" style="line-height: 150%;">Distinguish between plane stress and plane strain.</li><li class="MsoNormal" style="line-height: 150%;">When do you select plane stress / plane strain approximation?</li><li class="MsoNormal" style="line-height: 150%;">Write the constitutive equation for the plane stress and plane strain problems.</li><li class="MsoNormal" style="line-height: 150%;">Write the standard form of finite element equation.</li><li class="MsoNormal" style="line-height: 150%;">Draw bar element and write the stiffness matrix.</li><li class="MsoNormal" style="line-height: 150%;">Define DOF.</li><li class="MsoNormal" style="line-height: 150%;">Draw a plane truss element and indicate the truss element.</li><li class="MsoNormal" style="line-height: 150%;">What are natural coordinates?</li><li class="MsoNormal" style="line-height: 150%;">Define: local coordinates.</li><li class="MsoNormal" style="line-height: 150%;">Write the stiffness matrix for the plane truss element.</li><li class="MsoNormal" style="line-height: 150%;">Explain the use of element connectivity table.</li><li class="MsoNormal" style="line-height: 150%;">State the purpose of element connectivity table.</li></ol> cheyyarhttp://www.blogger.com/profile/15217348995509101076noreply@blogger.com15