- #1
donniemateno
- 45
- 0
I have a question wondering if you guys could check over for me . I have a solution no sure on its accuracy!
the question is in two parts
a bar has a 25mm diameter and is subjected to a tensile force of 61Kn, the extension on a gauge length of 50mm is 0.1mm. calculate the youngs modulus in Gpa
my attempt is youngs modulus = stress over strain
stress = 61kn (61000N) divided by pi(12.5^2) = 124.3
strain = 0.1 over 25 = 0.0004
124.3 divided by 0.004 = 31075 which is 311 Gpa?
the second part is: a bar has a 25mm diameter and is subjected to a tensile force of 61Kn,the decease in length is 0.013mm. the axial extension on a gauge length of 50mm is 0.1mm. calculate poissons ratio
Poissons ratio = lateral strain over stress
25mm divided by 0.1 x 0.013 = 19230
the question is in two parts
a bar has a 25mm diameter and is subjected to a tensile force of 61Kn, the extension on a gauge length of 50mm is 0.1mm. calculate the youngs modulus in Gpa
my attempt is youngs modulus = stress over strain
stress = 61kn (61000N) divided by pi(12.5^2) = 124.3
strain = 0.1 over 25 = 0.0004
124.3 divided by 0.004 = 31075 which is 311 Gpa?
the second part is: a bar has a 25mm diameter and is subjected to a tensile force of 61Kn,the decease in length is 0.013mm. the axial extension on a gauge length of 50mm is 0.1mm. calculate poissons ratio
Poissons ratio = lateral strain over stress
25mm divided by 0.1 x 0.013 = 19230