Write a subroutine called Q8QUAD, in whatever computer programming language you wish, that calculates the components of the k_e  matrix for a general quadratic quadrilateral element using Gaussian quadrature. This assignment is similar to Problem 23 except a eight-node quadrilateral is used. Check your work with the problem in the your textbook on page 336.

Click here to download a spreadsheet containing the Gaussian quadrature points

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