Fracture of Tensile Samples


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Fracture of Tensile Samples
Fracture of Tensile SamplesIn a tensile test of a ductile metal, the initial elastic (and essentially linear) deformation is followed by plastic deformation during which the length increases and the cross section decreases (see Sec. 2.2). In the plastic deformation region, usually strain (work) hardening occurs and the material gets stronger, and hence an increasing load is required to continue to strain (elongate) the sample at a constant (approximately) strain rate. Eventually a strain is attained where further plastic deformation becomes very localized. This may initiate at a region of slightly smaller cross section (such as a machining notch) or at a microstructural feature whi…
Citation
Charlie R. Brooks; Ashok Choudhury: Failure Analysis of Engineering Materials. Fracture of Tensile Samples, Chapter (McGraw-Hill Professional, 2002), AccessEngineering Export