Added new codeHEADmaster

1 files changed, 32 insertions, 0 deletions

diff --git a/3862/CH8/EX8.24/Ex8_24.sce b/3862/CH8/EX8.24/Ex8_24.sce
new file mode 100644
index 000000000..16fa6bc55
--- /dev/null
+++ b/3862/CH8/EX8.24/Ex8_24.sce
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+clear
+//variable declaration
+E=(2*100000)               //Young's modulus,N/mm^2
+alpha=(0.000012)       //expansion coeffecient,/°c
+L=(12)                     //length,m
+t=(40-18)                  //temperature difference,°c
+
+delta=alpha*t*L*1000          //free expansion of the rails,mm    
+// Provide a minimum gap of 3.168 mm between the rails, so that temperature stresses do not develop
+       
+// a) If no expansion joint is provided, free expansion prevented is equal to 3.168 mm
+
+//delta=(P*L)/(A*E) & p=P/A where p is stress, P,A is load,area 
+
+p1=(delta*E)/(L*1000)     //stress developed , N/mm^2
+
+printf("\n (a) p= %0.1f  	N/mm^2",p1)
+
+//(b) If a gap of 1.5 mm is provided, free expansion prevented delta2 = 3.168 – 1.5 = 1.668 mm.
+
+delta2=1.668       //mm
+//delta2=(P*L)/(A*E) & p=P/A where p is stress, P,A is load,area 
+
+p2=(delta2*E)/(L*1000)     //stress developed , N/mm^2
+
+printf("\n (b) p= %0.1f  	N/mm^2",p2)
+
+// If the stress developed is 20 N/mm2, then p = P/ A
+p3=20                      //stress developed,N/mm^2
+delta3=delta-(p3*L*1000/E)
+
+printf("\n  (iii) delta= %0.3f  mm",delta3)