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|Title: ||Measurement of strain history during the stretching of forming-grade steel sheets|
|Authors: ||NANDEDKAR, VM|
|Keywords: ||limit diagrams|
|Issue Date: ||1999|
|Publisher: ||ELSEVIER SCIENCE SA|
|Citation: ||JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 90(), 24-29|
|Abstract: ||It is well known that the strain history (the strain paths) greatly affects the forming limit strains of sheet metals. It is usually assumed that the strain paths remain linear during the in-plane stretching of sheets using a flat cylindrical punch. The present results show that the nature of the strain path even in such simple benchmark tooling actually varies depending upon the strain ratio. The strain path in the negative minor strain domain shows a curvilinear behaviour, but in the biaxial stretching region the paths are nearly linear. (C) 1999 Elsevier Science S.A. .|
|Appears in Collections:||Article|
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