Definition
Relationship between true stress and strain for a given material undergoing plastic deformation.
Related Terms
Stress–strain curves; work/strain hardening curve
Theory and Application
Introduction/Context
In metal-forming technology a major parameter is the load or force required to perform the operation. This is dependent on the geometrical configuration, friction at the tool–workpiece interface, and the mechanical resistance to plastic flow of the workpiece material and in turn determines the required force and energy capacity of the machine tool being used. This mechanical resistance of the workpiece material is defined by its flow curve which can be established independently by testing. Thus, in modelling of a forming process, the flow curve of the workpiece material is an essential prerequisite and for this purpose the use of empirical stress–strain curves and constitutive relations are used.
The flow curve is best explained by considering a simple uniaxial tensile test...
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Altan T, Ngaile G, Shen G (eds) (2005) Cold and hot forging: fundamentals and applications. ASM International, Materials Park, OH
Cook M, Larke EC (1945) Resistance of copper and copper alloys to homogeneous deformation in compression. J Inst Met l71(12):371–390
Czichos H, Saito T, Smith LE (eds) (2006) Springer handbook of material measurement methods. Springer, Berlin, pp 303–304
Johnson W (1956) Experiments in plane strain extrusion. J Mech Phys Solids 4(4):269–282
Johnson W, Mellor PB (1962) Plasticity for mechanical engineers. Van Nostrand, Princeton
Loizou N, Sims RB (1953) Yield stress of pure lead in compression. J Mech Phys Solids 1(4):234–243
Ludwig P (1909) Elemente der technologischen Mechanik (Elements of technological mechanics). Springer, Berlin
Mellor PB (1956) Stretch forming under fluid pressure. J Mech Phys Solids 5:41–56
Watts AB, Fard H (1955) On the basic yield stress curve for a metal. Proc I Mech E 169:1141–1156.
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Bramley, A. (2014). Flow Stress, Flow Curve. In: Laperrière, L., Reinhart, G. (eds) CIRP Encyclopedia of Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-20617-7_16704
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DOI: https://doi.org/10.1007/978-3-642-20617-7_16704
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-20616-0
Online ISBN: 978-3-642-20617-7
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