1D Quadratic Element Matlab Code

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Sanket Shah
Sanket Shah on 2 May 2015
Commented: Maryam ZD on 10 Sep 2021
I have created a Matlab code for a 1d steady state heat conduction problem, using linear or 2 node per element, using 'n' elements. I now have to change this for 1D Steady State using quadratic or 3 nodes per element using 'n' elements. I know what is to be changed and what values are to be changed. What I cannot figure out is how do I change them. I need to change nNodes, element co-ordinate system, Gauss 1 pt integration to Gauss 2 pt integration, shape functions, derivatives of shape functions and the jacobian. The shape functions are to be coded in natural or normalized co-ordinate system i.e using Xi which ranges from -1 to 1, instead of x, which ranges from 0 to length.
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Maryam ZD
Maryam ZD on 10 Sep 2021
I have the same problem. Can you help me?
please connect to me with this e-mail :m.ziaadini@eng.uk.ac.ir

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