Yield Strength vs. Young's Modulus

What's the Difference?

Yield strength and Young's modulus are both mechanical properties used to describe the behavior of materials under stress. However, they represent different aspects of a material's response to external forces. Yield strength refers to the maximum stress a material can withstand before it starts to deform permanently or undergo plastic deformation. It indicates the point at which a material transitions from elastic to plastic behavior. On the other hand, Young's modulus, also known as the elastic modulus, measures a material's stiffness or resistance to elastic deformation. It quantifies the ratio of stress to strain within the elastic limit, providing information about a material's ability to return to its original shape after being subjected to external forces. While yield strength indicates the material's ability to withstand deformation, Young's modulus characterizes its ability to resist elastic deformation.



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