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+// Problem 16.1,Page no.366
+
+clc;clear;
+close;
+
+t=1 //cm //thickness of plates
+sigma_t=150 //MPa //Working stress
+sigma_c=212.5 //MPa //crushing stress
+sigma_s=94.5 //MPa //shearing stress
+
+//Calculation (Part-1)
+
+//P_s=%pi*4**-1*d**2*sigma_s //N //Shearing strength
+//After substituting values and further simplifying we get
+//P_s=%pi*4**-1*d**2*94.5*10**6 //N
+
+//P_c=d*t*sigma_c //N //crushing strength
+//After substituting values and further simplifying we get
+//P_c=d*1*10**-2*212.5*10**6 //N
+
+//P_t=(p-d)*t*sigma_t //N //Strength of plate in tearing
+//After substituting values and further simplifying we get
+//P_t=(p-d)*1*10**-2*150*10**6
+
+//Now comparing strengths
+//P_s=P_c
+//%pi*4**-1*d**2*94.5*10**6=d*1*10**-2*212.5*10**6
+d=1*10**-2*212.5*10**6*(%pi*4**-1*94.5*10**6)**-1 //m //Diameter of rivet
+
+//Now comparing strengths
+//P_t=P_c
+//(p-d)*1*10**-2*150*10**6=d*1*10**-2*212.5*10**6
+//Afte further simplifying equation we get
+//(p-d)=1.4166*d
+p=(1.4166*d+d) //m //%pitch length of rivet
+
+P=p*sigma_t*10**6*t*10**-2 //N //Strength of solid plate //Answer for strength of solid plate is incorrect in textbook
+
+rho=(p-d)*p**-1*100 //Efficiency of the joint //Notification has been changed
+
+//Calculation (Part-2)
+
+//P_s=2*%pi*4**-1*d**2*sigma_s //N //Shearing strength
+//After substituting values and further simplifying we get
+//P_s=2*%pi*4**-1*d**2*94.5*10**6 //N
+
+//P_c=2*d*t*sigma_c //N //crushing strength
+//After substituting values and further simplifying we get
+//P_c=2*d*1*10**-2*212.5*10**6 //N
+
+//P_t=(p-d)*t*sigma_t //N //Strength of plate in tearing
+//After substituting values and further simplifying we get
+//P_t=(p-d)*1*10**-2*150*10**6
+
+//Now comparing strengths
+//P_s=P_c
+//2*%pi*4**-1*d**2*94.5*10**6=2*d*1*10**-2*212.5*10**6
+d=1*10**-2*212.5*10**6*(%pi*4**-1*94.5*10**6)**-1 //m //Diameter of rivet
+
+//Now comparing strengths
+//P_t=P_c
+//(p-d)*1*10**-2*150*10**6=2*d*1*10**-2*212.5*10**6
+//Afte further simplifying equation we get
+//(p-d)=2.833*d
+p_1=(2.833*d+d) //m //%pitch length of rivets in shearing strength of plate //Notification for %pitch length has been changed
+
+rho_2=(p_1-d)*p_1**-1*100 //Efficiency of the joint //Notification has been changed
+
+//Result
+printf("The Efficiency of joint in single rivet is %.2f %%",rho)
+printf("\n The Efficiency of joint in double rivet is %.2f %%",rho_2)