# Cell calculation and for loop modification

1 次查看（过去 30 天）
Mark2021-11-15
I would like to input my "stacknumber" and input my "theta(45,-45,0 repectively)" and save my value in the cell which is called "QbarStoreArr"
If I input the value of my stacknumber for 1, and input my "theta(45,-45,0 repectively)" in the Matlab Workspace I got the 1x3cell and each cell is a matrics.
But when I input the value of my stacknumber greater than 1 (That is, 2 3 4 5 6.....etc), in the Matlab Workspace I got only the first 3 cell and the rest is empaty space.
I would like to stack my cell result like this picture below(please input the value of my stacknumber=6 and input and input the value of theta 45,-45,0 repectively), how should I modify my code in "foor loop" to get the result I want?
Thanks!!
clc
clear
stackNumber = input('stackNumber = ');
plyNumber=3;
plysym=1;
Total=plyNumber*stackNumber*plysym;
QbarStoreArr = cell(1,Total);
E1=141;
E2=6.7;
G12=3.2;
v12=0.33;
v21 = v12*(E2/E1);
Q11 = E1./(1-v12.*v21);
Q12 =(v12.*E2)./(1-v12.*v21);
Q21 = Q12;
Q22 = E2./(1-v12.*v21);
Q66 = G12;
%========= Stacking
for i =1 : plyNumber
angleArr(1,i) = input(' theta = '); % Enter the plyNumber
QbarStoreArr{i} = QBarFunction(Q11, Q12, Q22, Q66, angleArr(1,i));
end
function [Qbar] = QBarFunction (Q11, Q12, Q22, Q66, x)
c=cosd(x); s = sind(x);
Q_bar_11=Q11.*(c.^4)+Q22.*(s.^4)+2.*(Q12+2.*Q66).*(s.^2).*(c.^2);
Q_bar_12=(Q11+Q22-4.*Q66).*(s.^2).*(c.^2)+Q12.*((c.^4)+(s.^4));
Q_bar_22=Q11.*(s.^4)+Q22.*(c.^4)+2*(Q12+2.*Q66).*(s.^2).*(c.^2);
Q_bar_16=(Q11-Q12-2.*Q66).*(c^3).*(s)-(Q22-Q12-2.*Q66).*(c).*(s.^3);
Q_bar_26=(Q11-Q12-2.*Q66).*(c).*(s^3)-(Q22-Q12-2.*Q66).*(c^3).*(s);
Q_bar_66=(Q11+Q22-2.*Q12-2.*Q66).*(s.^2).*(c.^2)+Q66.*((s^4)+(c^4));
Qbar= [Q_bar_11 Q_bar_12 Q_bar_16; Q_bar_12 Q_bar_22 Q_bar_26; Q_bar_16 Q_bar_26 Q_bar_66];
end

### 回答（1 个）

In the above code, the size of for loop is depending on the value of the variable "plyNmber", whose value is always 3.
for i = 1:plyNumber
angleArr(1,i) = input(' theta = ');
QbarStoreArr{i} = QBarFunction(Q11, Q12, Q22, Q66, angleArr(1,i));
end
Hence you have to change the above code to depend on the value of the variable "Total" which changes based on the value of the variable "stackNumber"
for i = 1:Total
angleArr(1,i) = input(' theta = ');
QbarStoreArr{i} = QBarFunction(Q11, Q12, Q22, Q66, angleArr(1,i));
end

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