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How to find modulus of elasticity from stress-strain curve?

Understand the Problem

The question is asking for the method to determine the modulus of elasticity from a stress-strain curve, which involves analyzing the linear portion of the curve before yielding occurs. This typically requires identifying the slope of the linear region of the curve and calculating the ratio of stress to strain.

Answer

The modulus of elasticity is the slope of the linear portion of a stress-strain curve.

The modulus of elasticity is found from the slope of the linear portion of a stress-strain curve in the elastic region. This is calculated by dividing the change in stress by the change in strain.

Answer for screen readers

The modulus of elasticity is found from the slope of the linear portion of a stress-strain curve in the elastic region. This is calculated by dividing the change in stress by the change in strain.

More Information

The modulus of elasticity, also known as Young's modulus, is a measure of a material's stiffness. It provides important information about how a material will deform under load, indicating the material's ability to return to its original shape after removing the load.

Tips

One common mistake is to select a non-linear portion of the stress-strain curve or to use stress-strain points beyond the elastic limit.

Sources

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