elasticity - Is the Young's Modulus different for Compressive and ...
Feb 11, 2022 · So the Young's modulus, which is the ratio of (tensile or compressive) stress to the longitudinal strain, should be the same for both compressive and tensile stress.
What do bulk modulus values actually mean? - Physics Stack Exchange
Mar 23, 2019 · 5 I am trying to understand what bulk modulus is, but it is quite hard for me to understand it. I get that it is the resistance of material to compression from all directions, but what actually …
elasticity - Is the Young's modulus the same for compressive and ...
Oct 10, 2018 · I want to know the Young's modulus for a compressive test, but I have just a tensile test. Are they of the same value?
Negative Sign in Compression Modulus - Physics Stack Exchange
Sep 13, 2015 · Since the change in length of an object is negative when compressive stress occurs, I would assume that, without a negative sign attached to the equation to cancel the negative change in …
elasticity - Stress in a rod clamped between two rigid walls when the ...
Jan 29, 2019 · The first point. We usually neglect the fact that Young's modulus changes with temperature. Point 2 Now you are right the original length is just as you wrote it. So now if we rise the …
How would one derive the equation of thermal stress?
Sep 14, 2015 · That really just stems from the definition of Young's Modulus. From here, it's easy to see where the equation for thermal stress comes from -- the linear coefficient of thermal expansion …
Which area and length is the one used in equation of Youngs modulus?
Aug 15, 2020 · The length used in the formula is the initial length of your specimen in the same direction of the load and the area is the cross-sectional area perpendicular to the direction of the load. Young …
Do metals generally have larger values of Young's modulus than alloys ...
May 6, 2021 · In my physics textbook, they have written that metals in general have a higher Young's modulus when compared to alloys. On the contrary, in the same chapter they have mentioned that …
forces - In terms of compressive stress $F/A$, what is the cross ...
Oct 21, 2021 · Johnson thus notes that when designing for strength for curved contact, a low Young's modulus is desirable (the Young's modulus isn't a factor for yielding in the case of flat contact at the …
Why is bulk modulus large for a nearly Incompresible material?
Feb 9, 2022 · A nearly incompressible material has a slight change in volume, thus according to the formula of bulk modulus, the smaller change of volume means a larger value of bulk modulus.