Matlab – calculate geometric properties, engineering
Matlab – calculate geometric properties, engineering
Attached is the code I have already created..I need help figuring out how to plot each option, and I need to add another option to calculate the geometric properties of an arbitrary shape (something not considered to be a rectangle, circle, triangle, etc.)(something irregular).% Option #4: Calculate geometric properties of arbitrary 2D shapes_x000D_
% Area, Moments of inertia_x000D_
_x000D_
while 1_x000D_
_x000D_
fprintf(‘nttMenun’);_x000D_
_x000D_
fprintf(‘1. Rectangle or parallelogramn’);_x000D_
_x000D_
fprintf(‘2. Hollow Rectangular Sectionn’);_x000D_
_x000D_
fprintf(‘3. Circular Sectionn’);_x000D_
_x000D_
fprintf(‘4. Hollow Circular Sectionn’);_x000D_
_x000D_
fprintf(‘5. Triangle n’);_x000D_
_x000D_
fprintf(‘6. I-beam n’)_x000D_
_x000D_
fprintf(‘7. Exit n’);_x000D_
_x000D_
x = input(‘Enter your option: ‘);_x000D_
_x000D_
switch(x)_x000D_
_x000D_
case 1 _x000D_
_x000D_
fprintf(‘nRectangle or paralleogramn’);_x000D_
_x000D_
b = input(‘Enter the width: ‘);_x000D_
_x000D_
d = input(‘Enter the height: ‘);_x000D_
_x000D_
Ixx = (b*d^3)/12;_x000D_
_x000D_
Iyy = (d*b^3)/12;_x000D_
_x000D_
A = b*d;_x000D_
_x000D_
fprintf(‘Area = %.2fn’,A);_x000D_
_x000D_
fprintf(‘Moment of Inertia Ixx = %.2fn’,Ixx);_x000D_
_x000D_
fprintf(‘Moment of Inertia Iyy = %.2fn’,Iyy);_x000D_
_x000D_
_x000D_
case 2 _x000D_
_x000D_
fprintf(‘nHollow Rectangular Sectionn’);_x000D_
_x000D_
b = input(‘Enter the outside width: ‘);_x000D_
_x000D_
d = input(‘Enter the outside height: ‘);_x000D_
_x000D_
b1 = input(‘Enter the inner width: ‘);_x000D_
_x000D_
d1 = input(‘Enter the inner height: ‘);_x000D_
_x000D_
Ixx = (b*d^3)/12-(b1*d1^3)/12;_x000D_
_x000D_
Iyy = (d*b^3)/12-(d1*b1^3)/12;_x000D_
_x000D_
A = b*d-b1*d1;_x000D_
_x000D_
fprintf(‘Area = %.2fn’,A);_x000D_
_x000D_
fprintf(‘Moment of Inertia Ixx = %.2fn’,Ixx);_x000D_
_x000D_
fprintf(‘Moment of Inertia Iyy = %.2fn’,Iyy);_x000D_
_x000D_
case 3 _x000D_
_x000D_
fprintf(‘nCircular Sectionn’);_x000D_
_x000D_
d = input(‘Enter the diameter: ‘);_x000D_
_x000D_
Ixx = (pi*d^4)/64;_x000D_
_x000D_
Iyy = Ixx;_x000D_
_x000D_
A = (pi*(d/2)^2);_x000D_
_x000D_
fprintf(‘Area = %.2fn’,A);_x000D_
_x000D_
fprintf(‘Moment of Inertia Ixx = %.2fn’,Ixx);_x000D_
_x000D_
fprintf(‘Moment of Inertia Iyy = %.2fn’,Iyy);_x000D_
_x000D_
case 4_x000D_
_x000D_
fprintf(‘nHollow circular sectionn’);_x000D_
_x000D_
d = input(‘Enter the inner diameter: ‘);_x000D_
_x000D_
D = input(‘Enter the outside diameter: ‘);_x000D_
_x000D_
Ixx = (pi/64)*(D^4-d^4);_x000D_
_x000D_
Iyy = Ixx;_x000D_
_x000D_
A = pi*((D/2)^2)-((d/2)^2);_x000D_
_x000D_
fprintf(‘Area = %.2fn’,A);_x000D_
_x000D_
fprintf(‘Moment of Inertia Ixx = %.2fn’,Ixx);_x000D_
_x000D_
fprintf(‘Moment of Inertia Iyy = %.2fn’,Iyy);_x000D_
_x000D_
case 5 _x000D_
_x000D_
fprintf(‘nTrianglen’);_x000D_
_x000D_
b = input(‘Enter the width: ‘);_x000D_
_x000D_
h = input(‘Enter the height: ‘);_x000D_
_x000D_
Ig = (b*h^3)/36;_x000D_
_x000D_
A = (b*h)/2;_x000D_
_x000D_
fprintf(‘Area = %.2fn’,A);_x000D_
_x000D_
fprintf(‘Moment of Inertia Ig = %.2fn’,Ig);_x000D_
_x000D_
case 6_x000D_
_x000D_
fprintf(‘nI-Sectionn’);_x000D_
_x000D_
d = input(‘Enter the height: ‘);_x000D_
_x000D_
d1 = input(‘Enter the inner height (d1): ‘);_x000D_
_x000D_
b = input(‘Enter the width: ‘);_x000D_
_x000D_
b1 = input(‘Enter the inner width (b1): ‘);_x000D_
_x000D_
Ixx = (b*d^3)/12-(b1*d1^3)/12;_x000D_
_x000D_
Iyy = (d*b^3)/12-(d1*b1^3)/12;_x000D_
_x000D_
A = b*(d-d1)+(d1*(b-b1));_x000D_
_x000D_
fprintf(‘Area = %.2fn’,A);_x000D_
_x000D_
fprintf(‘Moment of Inertia Ixx = %.2fn’,Ixx);_x000D_
_x000D_
fprintf(‘Moment of Inertia Iyy = %.2fn’,Iyy);_x000D_
_x000D_
_x000D_
_x000D_
case 7_x000D_
_x000D_
break;_x000D_
_x000D_
otherwise_x000D_
_x000D_
fprintf(‘Invalid optionn’ );_x000D_
_x000D_
end_x000D_
_x000D_
end
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