Stress strain curve — 13 discussions

How did you find PF?: Google search How we can differentiate failure and fracture using Stress Strain Curve [Mentor Note -- thread moved from the New Member Introduction forum]

Hi all I was hoping someone could shed some light on the following:- I am trying to understand what Yield strength is and understand the exact limit of where elastic and plastic deformation occurs on a stress strain curve. Correct me if I am wrong but I define:- Yield strength as the amount...

For this nonlinear hardening stress strain curve, how do you express strain in terms of stresses ?

hi, I am aware that stress strain curve involves some function which begins with linear part and continues with non linear part after a while. I consider that it is so complicated, but I really wonder how a stress strain curve is derived, what kind of tests are applied and how those tests are...

I want to create stress/strain curves for Higher Strain Rates from an available stress/strain curve? I am interested on the mathematical formulation aspect to generate a Dyna Material card.

Homework Statement For a crystalline metal material - Elastic modulus E - Poisson ratio v - A table with test data of stresses vs. total strains, from a monotonic uniaxial tension test, which generates a stress-strain curve. How would you use this data to find the corresponding pure shear...

Hello I'm having trouble wrapping my head around finding things from stress strain curvesI need to find: Elastic modulus (Young’s modulus) •Yield strength •Tensile strength •Uniform and total elongation (ductility) elastic modulus I think is 1240/0.02 = 62000 but I'm unsure of how to find...

Hello, I am doing simulation using Finite element for the concrete ,this I found the concrete model for the concrete in euro code as attached in the picture. But what I don't understand is basically why the peak of the curve is not the Fck (compressive strength), because the curve maximum is...

Homework Statement Explain in terms of stress and strain what happens to the stretched material beyond the ultimate tensile stress. Homework Equations A curve similar to this The Attempt at a Solution I can see that the curve beyond UTS represents increasing stiffness but i can't...

Hello .. I have problem understanding how to decide which material is more elastic based on stress strain curve.. my understanding is as follows 1)if a material has big youngs modulus.. then it is more stiff 2)a material with a big youngs modulus may be or may not be very elastic (elasticity...

using excel 2007, can the construction to determine the proof stress of a material not be done manually? if so, how?

Hi All, I have a stress strain curve, which have strain(in/in) on x-axis and stress in Y axis(Psi). Here I want to conver the curve to stress(MPa) and strain (mm/mm). I know that Psi can be converted by multiplying the digit by 0.00689475729. But in this case I need to change the strain...

Hi i need help with this conversion as i am unsure how to approach this. I have obtained a force vs displacement curve from a Hounsfield materials testing machine, and would like to know how to convert this to a stress vs strain curve. Thanks