aaasimm
September 14, 2019, 2:00pm
1
Hello,
I want to define creep using Bailey-Norton law. I found material parameters in literature for the parameter A given in units MPa^(-n) s^(-m-1). Could you please help me how to convert the given value for A to the SI units? The values are shown in the attached figure.
Kind regards
Asim
jousefm
September 14, 2019, 4:48pm
2
Hi Asim!
Have not worked through the paper but it seems like equation 6 in this paper might help: [PDF] The Application of the Norton-Bailey Law for Creep Prediction Through Power Law Regression | Semantic Scholar - also when using the powerlaw for \dot{\epsilon} you can use a reference stress to make A non-dimensional which gives you something that is in SI units. Maybe someone else can add some more thoughts here Let me know if my impetus helped here.
Best,
Jousef
2 Likes
Hi @aaasimm
Have a look at this, is this the same you are asking for.
Regards
4 Likes
aaasimm
September 16, 2019, 10:21am
4
Thanks Hamza! Yes I was looking for this.
@jousefm The paper seems interesting. Certainly, I will go through it.
Thanks for your prompt responses.
Kind regards
Asim
2 Likes
aaasimm
September 17, 2019, 1:50pm
5
I think the key is to know the units of A. For Strain hardening case, the units of A are as shown below.