Stiffness matrix on matlab

Hello everyone, I attached the geometric stiffness matrix. I should write a matlab function [Ke, Ge, pe] = beam_matrix_vector_2nd_order(xA, xB, param, ue). I had Ke but i don't know how to simplify the matrix Ge. Thanks for help

Answer 1

[KSSV]

Hello Barone pierre,

This is a MATLAB forum, you find very little people with FEM knowledge. I suggest you to refer the following book:

The Finite Element Method Using MATLAB, Second Edition Young W. Kwon, Hyochoong Bang

Also you may have look into the following code: http://in.mathworks.com/matlabcentral/fileexchange/30970-natural-frequencies---buckling-loads-of-columns-using-finite-element-method

[Barone pierre]

I have looked, but i don't understand the geometric matrix, can you explain me ? thanks