Could someone please help me with writing the MATLAB code for this problem? there is no way to upload text files (for the nodes lists) on Chegg, as far as i am aware. If you know of a way to do this, please let me know.

Stress Concentration in a Plate with 2D Finite Element Triangles A plate in plane-stress has a 0.0lmeter diameter hole in it. In this homework, you wil be using 2D finite elements to calculate the maximum | stress in the plate (where x is 'to-the- right' and y s up'). The plate is 0.05meters wide and 0.05meters tall, as shown in the below picture. The plate has a thickness of 0.00lmeters (into the paper). The picture also shows the simple triangle-mesh that you will be using. The plate is loaded with a uniform horizontal pressure/traction (to-the-right) on its right edge with a total load of 1000N The boundary condition is 0 on the left edge of the plate. The plate is made of steel with E-210x10N/m2 and Poisson's ratio v#0.3 You have been provided with the list of 5314 triangle elements and the associated list of 2773 nodes in the below ASCII text files: elems.out nodes.out You have also been provided a list of the left-edge nodes in the below ASCII file leftlist.out and a list of the right-edge nodes in the below ASCII file: rightlist.out Use the 3node triangle-element (Constant-Strain-Triangle [CST] to find the maximum stress in the plate. Compare it to the theoretical value from Figure A-15-1 below, which of 6.25x107 N/m2 . (You will find the FEM agrees within 0.6% even with these gives a simple CST's.) For the nodal-loads, it is adequate to simply apply the total 1000N equally to each of the nodes on the right edge (the nodes in file rightlist.out), i.e., 1000/51 Newtons to each node. The associated reduced-stiffness matrix solves in bseconds or 2.35seconds in MATLAB on my desk PC, e.g., depending on what command you use: >> tic; disp-reduced-inv( Kreduced) * n0dalload reduced Elapsed time is 6.082989 seconds. >tic; disp reduced-K_ reduced nodal load reduced, toc Elapsed time is 2.356513 seconds. even using plain dense computations and no sparsity-exploitation. Make sure your computer will store about a 5494x5494 matrix of floating-point values before you begin. A 5500x5500 matrix in double precision is only 242MB; my desk PC has 8GB of RAM (8e9/ 242e6 33); so, unless you have a very, very tiny computer, you should not have any memory problems on this hw even using dense-matrix methods. You are not allowed to use a canned FEM software for this homework. You must write the for-loops and tun in at least a hardcopy of the files [MATLAB, C, Fortran, whatever] that you used to solve this homework problem HINT: You will need to constrain a single node to have zero y-displacement, otherwise, your reduced stiffness matrix will be singular and your Ax-b solver may give complaints. Stress Concentration in a Plate with 2D Finite Element Triangles A plate in plane-stress has a 0.0lmeter diameter hole in it. In this homework, you wil be using 2D finite elements to calculate the maximum | stress in the plate (where x is 'to-the- right' and y s up'). The plate is 0.05meters wide and 0.05meters tall, as shown in the below picture. The plate has a thickness of 0.00lmeters (into the paper). The picture also shows the simple triangle-mesh that you will be using. The plate is loaded with a uniform horizontal pressure/traction (to-the-right) on its right edge with a total load of 1000N The boundary condition is 0 on the left edge of the plate. The plate is made of steel with E-210x10N/m2 and Poisson's ratio v#0.3 You have been provided with the list of 5314 triangle elements and the associated list of 2773 nodes in the below ASCII text files: elems.out nodes.out You have also been provided a list of the left-edge nodes in the below ASCII file leftlist.out and a list of the right-edge nodes in the below ASCII file: rightlist.out Use the 3node triangle-element (Constant-Strain-Triangle [CST] to find the maximum stress in the plate. Compare it to the theoretical value from Figure A-15-1 below, which of 6.25x107 N/m2 . (You will find the FEM agrees within 0.6% even with these gives a simple CST's.) For the nodal-loads, it is adequate to simply apply the total 1000N equally to each of the nodes on the right edge (the nodes in file rightlist.out), i.e., 1000/51 Newtons to each node. The associated reduced-stiffness matrix solves in bseconds or 2.35seconds in MATLAB on my desk PC, e.g., depending on what command you use: >> tic; disp-reduced-inv( Kreduced) * n0dalload reduced Elapsed time is 6.082989 seconds. >tic; disp reduced-K_ reduced nodal load reduced, toc Elapsed time is 2.356513 seconds. even using plain dense computations and no sparsity-exploitation. Make sure your computer will store about a 5494x5494 matrix of floating-point values before you begin. A 5500x5500 matrix in double precision is only 242MB; my desk PC has 8GB of RAM (8e9/ 242e6 33); so, unless you have a very, very tiny computer, you should not have any memory problems on this hw even using dense-matrix methods. You are not allowed to use a canned FEM software for this homework. You must write the for-loops and tun in at least a hardcopy of the files [MATLAB, C, Fortran, whatever] that you used to solve this homework problem HINT: You will need to constrain a single node to have zero y-displacement, otherwise, your reduced stiffness matrix will be singular and your Ax-b solver may give complaints