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How to Calculate the Yield Strength of Two Parts

Yield identifies how much "give" an object has by bending, squeezing or pulling it. It is a fundamental property of solid objects. Knowledge of yield is important for construction, engineering, product manufacturing and many other fields. Scientists also observe yield to study the properties of the compounds or chemicals they are investigating. You can calculate the yield strength of two parts using a simple equation.

Instructions

- 1
  Gather information on the material that you are examining. You may obtain it from the manufacturer or from standard tables of information. You may also derive it from other equations.
- 2
  Find information including the force (in terms of lbs.) and the cross-sectional area (in terms of inches squared). The equation for uniaxial stress is: Stress = Force/Cross Sectional Area.
- 3
  Compare the cross-sectional areas of the two parts that are being stressed and the force applied. Initial yield is defined as .02 percent of the force. The item will break when the force applied on one side of the equation exceeds the resting object.
- 4
  Sum the cross-sectional areas of the two parts to find the force required for both objects to yield or break.

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