initial commit / add all books

12 files changed, 133 insertions, 0 deletions

diff --git a/3257/CH11/EX11.1/Ex11_1.sce b/3257/CH11/EX11.1/Ex11_1.sce
new file mode 100755
index 000000000..748aea2b1
--- /dev/null
+++ b/3257/CH11/EX11.1/Ex11_1.sce
@@ -0,0 +1,25 @@
+// Particle shape factor determination

+clc

+D = 1 // let

+L = 1 //let

+h = 2*D // length to diameter ratio

+printf("\n Example 11.1")

+printf("\n Part A:")

+D_eq = D

+A = %pi*D^2

+V = %pi*D^3/6

+k = A/V*D_eq

+printf("\n Shape factor for spherical particle is %d",k)

+printf("\n\n Part B:")

+A = 6*L^2

+V = L^3

+D_eq = (6*V/%pi)^(1/3)

+k = A/V*D_eq

+printf("\n Shape factor for cubic particle is %.2f",k)

+printf("\n\n Part C:")

+A = 2*%pi*D^2/4+%pi*D*h

+V= %pi*D^2/4*h

+D_eq = (6*V/%pi)^(1/3)

+k = A/V*D_eq

+printf("\n Shape factor for cylindrical particle is %.2f",k)

+

diff --git a/3257/CH11/EX11.1/Ex11_1.txt b/3257/CH11/EX11.1/Ex11_1.txt
new file mode 100755
index 000000000..0a0c8d6f9
--- /dev/null
+++ b/3257/CH11/EX11.1/Ex11_1.txt
@@ -0,0 +1,10 @@
+ 

+ Example 11.1

+ Part A:

+ Shape factor for spherical particle is 6

+

+ Part B:

+ Shape factor for cubic particle is 7.44

+

+ Part C:

+ Shape factor for cylindrical particle is 7.21 
\ No newline at end of file
diff --git a/3257/CH11/EX11.2/Ex11_2.sce b/3257/CH11/EX11.2/Ex11_2.sce
new file mode 100755
index 000000000..c2f65d059
--- /dev/null
+++ b/3257/CH11/EX11.2/Ex11_2.sce
@@ -0,0 +1,16 @@
+// Density of metal powder lubricant mix

+clc

+m_fe = 1000 // mass of iron in gram

+m_l = 25 // mass  in gram

+d_fe = 7.86 // density of iron in gram/cc

+d_l = 1.2 // density of lubricant in gram/cc

+d_ap = 2.75 // apparent density in gram/cc

+m_L = 30 // mass of lubricant in gram

+printf("\n Example 11.2")

+V = m_fe/d_fe + m_l/d_l // Combined volume in CC

+w = m_fe + m_L // combined mass in gram

+d_th = w/V // theoretical density in gram/cc  

+d_m_ap = d_ap/d_fe*d_th // apparent density of mix

+

+printf("\n Apparent density of metal powder lubricant mix is %.2f g/cm^3.",d_m_ap) // Answer in book is 2.42 g/cm^3

+

diff --git a/3257/CH11/EX11.2/Ex11_2.txt b/3257/CH11/EX11.2/Ex11_2.txt
new file mode 100755
index 000000000..34595644b
--- /dev/null
+++ b/3257/CH11/EX11.2/Ex11_2.txt
@@ -0,0 +1,3 @@
+ 

+ Example 11.2

+ Apparent density of metal powder lubricant mix is 2.43 g/cm^3. 
\ No newline at end of file
diff --git a/3257/CH11/EX11.3/Ex11_3.sce b/3257/CH11/EX11.3/Ex11_3.sce
new file mode 100755
index 000000000..6dae7da46
--- /dev/null
+++ b/3257/CH11/EX11.3/Ex11_3.sce
@@ -0,0 +1,16 @@
+// Pressure decay in composition

+clc

+k = 0.6 // given constant 

+mu = 0.4// given constant 

+d = 10 // diameter in mm

+px = 0 // pressure measure in N/mm^2

+px_p0 = 0.5 // pressure ratio

+printf("\n Example 11.3")

+printf("\n\n Part A:")

+if px==0 then  // no function deals with the calculation for an infinite number so if statement is used here

+    printf("\n Value of X must approach infinity for pressure to decay to zero.") 

+end

+

+printf("\n Part B:")

+X = - log(px_p0)/(4*k*mu/d)

+printf("\n Value of X, required to get pressure to decay to %.1f is %.2f mm. ",px_p0,X)

diff --git a/3257/CH11/EX11.3/Ex11_3.txt b/3257/CH11/EX11.3/Ex11_3.txt
new file mode 100755
index 000000000..cf02843e3
--- /dev/null
+++ b/3257/CH11/EX11.3/Ex11_3.txt
@@ -0,0 +1,7 @@
+

+ Example 11.3

+

+ Part A:

+ Value of X must approach infinity for pressure to decay to zero.

+ Part B:

+ Value of X, required to get pressure to decay to 0.5 is 7.22 mm.  
\ No newline at end of file
diff --git a/3257/CH11/EX11.4/Ex11_4.sce b/3257/CH11/EX11.4/Ex11_4.sce
new file mode 100755
index 000000000..e52b228a5
--- /dev/null
+++ b/3257/CH11/EX11.4/Ex11_4.sce
@@ -0,0 +1,9 @@
+// Shrinkage in sintering

+clc

+L = 1 // let

+del_l = 5/100*L // linear shrinkage

+rho_sint = 90 // sintered density in%

+printf("\n Example 11.4")

+rho_green = rho_sint*(1-(del_l/L))^3

+printf("\n Density of green compact becomes %d%%.",rho_green)

+

diff --git a/3257/CH11/EX11.4/Ex11_4.txt b/3257/CH11/EX11.4/Ex11_4.txt
new file mode 100755
index 000000000..994487ecc
--- /dev/null
+++ b/3257/CH11/EX11.4/Ex11_4.txt
@@ -0,0 +1,3 @@
+ 

+ Example 11.4

+ Density of green compact becomes 77%. 
\ No newline at end of file
diff --git a/3257/CH11/EX11.7/Ex11_7.sce b/3257/CH11/EX11.7/Ex11_7.sce
new file mode 100755
index 000000000..247808315
--- /dev/null
+++ b/3257/CH11/EX11.7/Ex11_7.sce
@@ -0,0 +1,16 @@
+// Effect of porosity on properties

+clc

+UTS0 = 125 // in MPa

+E0 = 500 // Youngs modulus in GPa

+k0 = 0.6 // thermal conductivity in W/m-K

+n = 6 // given

+p = 0.15 // given

+printf("\n Example 11.7")

+UTS = UTS0*exp(-5*p) 

+E = E0*(1-1.9*p+0.9*p^2)

+k = k0*(1-p)

+printf("\n Due to %d%% porosity", p*100)

+printf("\n Tensile strength becomes %d MPa.",UTS)

+printf("\n Modulus of elasticity becomes %d GPa.",E)

+printf("\n Thermal conductivity becomes %.2f W/m-K.",k)

+

diff --git a/3257/CH11/EX11.7/Ex11_7.txt b/3257/CH11/EX11.7/Ex11_7.txt
new file mode 100755
index 000000000..79356e178
--- /dev/null
+++ b/3257/CH11/EX11.7/Ex11_7.txt
@@ -0,0 +1,6 @@
+ 

+ Example 11.7

+ Due to 15% porosity

+ Tensile strength becomes 59 MPa.

+ Modulus of elasticity becomes 367 GPa.

+ Thermal conductivity becomes 0.51 W/m-K. 
\ No newline at end of file
diff --git a/3257/CH11/EX11.9/Ex11_9.sce b/3257/CH11/EX11.9/Ex11_9.sce
new file mode 100755
index 000000000..80a8e48de
--- /dev/null
+++ b/3257/CH11/EX11.9/Ex11_9.sce
@@ -0,0 +1,15 @@
+// Dimensional changes during shaping of ceramic components

+clc

+L = 25 // length in mm

+s_d = 0.09 // drying shrinkage

+s_f = 0.05 // firing shrinkage

+p_f = 4 //porosity of fired part

+printf("\n Example 11.9")

+printf("\n\n Part A:")

+L_d = L/(1-s_f)

+L_o = (1+s_d)*L_d

+printf("\n Initial length of part is %.2f mm.",L_o) 

+printf("\n Part B:")

+Va_Vd = (1-p_f/100)/(1/(1-s_f)^3)

+printf("\n Porosity P_d of dried part is %.2f%%.",(1-Va_Vd)*100) // Answer in book is 18%

+

diff --git a/3257/CH11/EX11.9/Ex11_9.txt b/3257/CH11/EX11.9/Ex11_9.txt
new file mode 100755
index 000000000..ae1cb8fe2
--- /dev/null
+++ b/3257/CH11/EX11.9/Ex11_9.txt
@@ -0,0 +1,7 @@
+ 

+ Example 11.9

+

+ Part A:

+ Initial length of part is 28.68 mm.

+ Part B:

+ Porosity P_d of dried part is 17.69%. 
\ No newline at end of file