Stress-Strain Relationship Summary

Figure 4 Typical Brittle Material Stress-Strain Curve

PHYSICAL PROPERTIES

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Properties of Metals DOE-HDBK-1017/1-93 STRESS-STRAIN RELATIONSHIP The important information in this chapter is summarized below. Bulk Modulus The Bulk Modulus of Elasticity is the elastic response to hydrostatic pressure and equilateral tension, or the volumetric response to hydrostatic pressure and equilateral tension. It is also the property of a material that determines the elastic response to the application of stress. Fracture point is the point where the material fractures due to plastic deformation. Ductile material will deform (elongate) more than brittle material, shown in the figures within the text. The stress-strain curves discussed in this chapter for ductile and brittle demonstrated how each material would react to stress and strain. Figures 3 and 4 illustrate the specific points for ductile and brittle material, respectively. Hooke's Law applies between Points 1 and 2. Elastic region is between Points 1 and 2. Plastic region is between Points 2 and 5. Rev. 0 Page 19 MS-02

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