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author | priyanka | 2015-06-24 15:03:17 +0530 |
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committer | priyanka | 2015-06-24 15:03:17 +0530 |
commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
tree | ab291cffc65280e58ac82470ba63fbcca7805165 /3250/CH3/EX3.10 | |
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initial commit / add all books
Diffstat (limited to '3250/CH3/EX3.10')
-rwxr-xr-x | 3250/CH3/EX3.10/Ex3_10.sce | 30 | ||||
-rwxr-xr-x | 3250/CH3/EX3.10/Ex3_10.txt | 5 |
2 files changed, 35 insertions, 0 deletions
diff --git a/3250/CH3/EX3.10/Ex3_10.sce b/3250/CH3/EX3.10/Ex3_10.sce new file mode 100755 index 000000000..a66d7c1de --- /dev/null +++ b/3250/CH3/EX3.10/Ex3_10.sce @@ -0,0 +1,30 @@ +clc +// Given that +L_ = 20 // Length of the mild steel product in mm +h = 50 // Height of the mild steel product in mm +L = 50 // Horizontal length of the mild steel product in mm +t = 5 // Thickness in mm +l=25 // Length of the bend in mm +E = 207 // Modulus of elasticity in kN/mm^2 +n = 517 // Strain hardening rate in N/mm^2 +Y = 345 // Yield stress in N/mm^2 +mu = 0.1// Cofficient of friction +e = 0.2 // Fracture strain +theta = 20 // Bend angle in degree +F = 3000 // Maximum available force in N +// Sample Problem 10 on page no. 136 +printf("\n # PROBLEM 3.10 # \n") +Rp = ((1 /((exp(e) - 1)))-0.82)*t/1.82 +Y_1 = Y+n*e +Y_2 = Y + n*(log(1+(1/(2.22*(Rp/t)+1)))) +M = ((0.55*t)^2)*((Y/6)+(Y_1/3)) + ((0.45*t)^2)*((Y/6)+(Y_2/3)) +Fmax = (M/l)*(1+(cosd((atand(mu))+mu*sind(atand(mu))))) +Fmax_ = L_*Fmax +lmin = Fmax_*l/F +Ls = 2*(((Rp+0.45*t)*%pi/4) + 50-(Rp+t)) +lmax = Ls / 2 +Fmax_min = Fmax_*l/lmax +printf("\n Minimum value of die length = %f mm, \n Minimum required capacity of the machine = %d N",lmin,ceil(Fmax_min)) +// Answer in the book is give as 2323 N for Minimum required capacity of the machine + + diff --git a/3250/CH3/EX3.10/Ex3_10.txt b/3250/CH3/EX3.10/Ex3_10.txt new file mode 100755 index 000000000..0aa9e6ee5 --- /dev/null +++ b/3250/CH3/EX3.10/Ex3_10.txt @@ -0,0 +1,5 @@ +
+ # PROBLEM 3.10 #
+
+ Minimum value of die length = 34.367396 mm,
+ Minimum required capacity of the machine = 2313 N
\ No newline at end of file |