Chapter 6.4

Chapter 6.4 - Tensile Strength If stress = tensile strength is maintained then specimen will eventually break Stress fracture strength Necking

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16 MSE 2090: Introduction to Materials Science Chapter 6, Mechanical Properties Tensile Strength Tensile strength : maximum stress (~ 100 - 1000 MPa) If stress = tensile strength is maintained then specimen will eventually break fracture strength “Necking” Stress, σ Strain, ε For structural applications, the yield stress is usually a more important property than the tensile strength, since once the yield stress has passed, the structure has deformed beyond acceptable limits.
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17 MSE 2090: Introduction to Materials Science Chapter 6, Mechanical Properties Tensile properties: Ductility Defined by percent elongation Ductility is a measure of the deformation at fracture 100 l l l EL % 0 0 f × = 100 A A A RA % 0 f 0 × = L f A o A f L o or percent reduction in area (plastic tensile strain at failure)
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18 MSE 2090: Introduction to Materials Science Chapter 6, Mechanical Properties Typical mechanical properties of metals The yield strength and tensile strength vary with prior
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This note was uploaded on 02/14/2012 for the course MSE 2090 taught by Professor Leoindzhiglei during the Fall '10 term at UVA.

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Chapter 6.4 - Tensile Strength If stress = tensile strength is maintained then specimen will eventually break Stress fracture strength Necking

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