Hey so I have a very similar problem on one of my homeworks for MatSci, except for part b instead of having the same stress, it asks you to find the creep rate with both a different temperature and a different stress, would I have to calculate that differently?
@@TaylorSparks the same question you have taught here is practiced at our college by our prof. so i thought there is some book that you guys are following. Btw m from India so lemme take my visa first.
@@nuqlear1189 This one actually comes from callister's book. I did a series of worked example problems for the publisher a while back and I think this was one of them.
HI Taylor, nice explanation. A quick question, does the Activation energy will remain constant for all the temperature and stress ranges or only for the picked stress (300 MPa) and temperature range?
Ideally it remains constant. There may be scenarios where they fit their data with two activation energies for two different temperature regimes, but this would be uncommon.
@@pradeepsmart5 Some equations for solder will have double power laws with varying activation energies that are related to the mechanism behind creep. Diffusion vs climb for instance. see this paper as an example. "Microstructural Dependence of Constitutive Properties of Eutectic SnAg and SnAgCu Solders"
@@TaylorSparks Thanks. I am trying to simulate creep deformation and have limited set of data and was wondering if it is somehow possible to figure out the constant for other temperatures even if they are temperature dependant
Hey so I have a very similar problem on one of my homeworks for MatSci, except for part b instead of having the same stress, it asks you to find the creep rate with both a different temperature and a different stress, would I have to calculate that differently?
powerful explanation. thanks a lot Sir.
JazakAllah Sir 😊
Glad to help!
sir plz can you tell from where you got those questions for more topics like fracture toughness test
I write them all myself. Come and take my class at the University of Utah and you'll get your fill xD
@@TaylorSparks the same question you have taught here is practiced at our college by our prof. so i thought there is some book that you guys are following. Btw m from India so lemme take my visa first.
@@nuqlear1189 This one actually comes from callister's book. I did a series of worked example problems for the publisher a while back and I think this was one of them.
@@TaylorSparks woahh nice
HI Taylor, nice explanation. A quick question, does the Activation energy will remain constant for all the temperature and stress ranges or only for the picked stress (300 MPa) and temperature range?
Ideally it remains constant. There may be scenarios where they fit their data with two activation energies for two different temperature regimes, but this would be uncommon.
@@TaylorSparks thanks a lot for your reply.. I really liked your lecture :)
@@pradeepsmart5 Some equations for solder will have double power laws with varying activation energies that are related to the mechanism behind creep. Diffusion vs climb for instance. see this paper as an example.
"Microstructural Dependence of Constitutive Properties of Eutectic SnAg and SnAgCu Solders"
How did you get - 1.0394x10^5 I tried to plug in the gas constant but I got different answer not - 1.034
what if K2 and n was temperature dependant?
We are explicitly assuming that they are not temperature dependent over this range of temperatures which allows us to utilize them.
We are explicitly assuming that they are not temperature dependent over this range of temperatures which allows us to utilize them.
@@TaylorSparks Thanks. I am trying to simulate creep deformation and have limited set of data and was wondering if it is somehow possible to figure out the constant for other temperatures even if they are temperature dependant