1988
DOI: 10.1002/srin.198801626
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Beschreibung der Fließkurve auf der Basis phänomenologischer Ansätze am Beispiel eines Baustahls

Abstract: Zur Beschreibung der Fließkurve des untersuchten Baustahls wurde ein allgemeines phänomenologisches Modell zur Entwicklung der Gesamtversetzungsdichte mit der plastischen Vergleichsdehnung herangezogen. Spezielle Formen dieser Evolutionsgleichung liefern bekannte empirische Fließgesetze. Unter Berücksichtigung der Randbedingungen bei der Herleitung dieser Gesetze sind deren Koeffizienten physikalisch plausibel zu interpretieren. Der gebräuchlichen Hollomon‐Gleichung ähnliche Potenzfunktionen, die eine additive… Show more

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Cited by 6 publications
(1 citation statement)
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“…stress which is the basis for the Hockett-Sherby approach does not agree with experimental observations showing constant strain hardening values at large plastic deformations. In consequence, a linear increase of the flow curve should be expected for large strains when stage IV of the strain hardening behaviour with constant dow/dcp-values is reached [6]. Probably the influence of damage provokes the right bending of the flow curve in Bulge tests.…”
Section: Methodsmentioning
confidence: 97%
“…stress which is the basis for the Hockett-Sherby approach does not agree with experimental observations showing constant strain hardening values at large plastic deformations. In consequence, a linear increase of the flow curve should be expected for large strains when stage IV of the strain hardening behaviour with constant dow/dcp-values is reached [6]. Probably the influence of damage provokes the right bending of the flow curve in Bulge tests.…”
Section: Methodsmentioning
confidence: 97%