1
$\begingroup$

I was trying to get a value for elastic modulus for 316L stainless steel material from internet, and I saw a brochure online which was giving two different values for elastic modulus, one in tension and one in torsion. I was confused why this is the case?

$\endgroup$
2
  • $\begingroup$ Can you provide the link to the online brochure? $\endgroup$
    – r13
    Jun 24 at 12:59
  • $\begingroup$ There are many elastic moduli: Young's (axial), shear (torsion), bulk (volumetric), biaxial, plane-strain, P-wave, complex... $\endgroup$ Jun 25 at 3:04
2
$\begingroup$

Probably the value for the torsion related modulus for 316L should be close to 79[GPa], compared to 200-210 [GPa] for tension.

The shear modulus for isotropic materials can be analytically calculated as

$$G = \frac{E}{2\cdot(1+\nu)}$$

where:

  • G is the shear modulus
  • E is the tensile modulus
  • $\nu$ is the Poisson's ratio.

You can see a derivation in the following link (University of Auckland)

$\endgroup$
0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.