Creep Deformation


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Creep Deformation
Creep DeformationIf a cylinder is loaded axially at a stress less than that of the yield strength, then yielding and fracture are not expected. However, there are situations in which a slow deformation will occur. This means that the response of materials to loading is time-dependent, but may not be observed in short-time tensile tests (however, see Fig. 2.33). Figure 2.49 shows the elongation with time for a fixed axial stress. This elongation process is called creep. The elongation rate (creep rate) increases with increasing temperature and stress, and the time to fracture (
Citation
Charlie R. Brooks; Ashok Choudhury: Failure Analysis of Engineering Materials. Creep Deformation, Chapter (McGraw-Hill Professional, 2002), AccessEngineering Export