diff options
Diffstat (limited to '3776/CH9/EX9.5/Ex9_5.sce')
| -rw-r--r-- | 3776/CH9/EX9.5/Ex9_5.sce | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/3776/CH9/EX9.5/Ex9_5.sce b/3776/CH9/EX9.5/Ex9_5.sce index ee3f65e4e..432d3df4b 100644 --- a/3776/CH9/EX9.5/Ex9_5.sce +++ b/3776/CH9/EX9.5/Ex9_5.sce @@ -1,23 +1,24 @@ clear //Given M = 10 //KN-m moment -v = 8.0 //KN - shear Stress +v = 8.0 //KN - shear Stress stress_allow = 8 //MPa - The maximum allowable stress shear_allow_per = 1.4 //MPa - The allowable stress perpendicular to grain stress_allow_shear = 0.7 //MPa - The maximum allowable shear stress -//Caliculations +//calculations -S = M*(10**6)/stress_allow //mm3 +S = M*(10**6)/stress_allow //mm3 //lets arbitarly assume h = 2b //S = b*(h**2)/6 -h = (12*S**0.333) //The depth of the beam +h = (1.25*(10**6)*12)**(1/3) //The depth of the beam b = h/2 //mm The width of the beam -A = h*b //mm2 The area of the crossection , assumption -stress_shear = 3*v*(10**3)/(2*A) //MPa The strear stress +A = 140*240 //sq.mm The area of the crossection , assumption +stress_shear = 3*v*(10**3)/(2*A) //MPa The strear stress if stress_shear<stress_allow_shear then - printf("The stress developed %0.2f is in allowable ranges for %0.2f mm2 area",stress_shear,A) + printf("The stress developed %0.2f is in allowable ranges for %0.2f sq.mm area",stress_shear,A) else printf("The stress developed %0.3f is in non allowable ranges %0.3f area",stress_shear,A) end Area_allow = v*(10**3)/shear_allow_per //mm - the allowable area -printf("\n The minimum area is %0.3f mm2",Area_allow ) +printf("\n The minimum area is %0.3f sq.mm",Area_allow ) +//answer varies due to rounding off errors |