Y

• Yield Point - The first stress in a material, less than the maximum attainable stress, at which an increase in stress. Not a general term or property; only certain metals exhibit a yield point.
• Yield Strength - The stress at which a material exhibits a specified deviation is usually 0.2% for most metals. A general term or property, preferred to yield point.
• Young's Modulus - Same as modulus of elasticity.