Size effects in micro cup drawing

Molotnikov, A., Lapovok, R., Gu, C. F., Davies, C. H. J. and Estrin, Y. 2012, Size effects in micro cup drawing, Materials science and engineering a, vol. 550, pp. 312-319, doi: 10.1016/j.msea.2012.04.079.

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Title Size effects in micro cup drawing
Author(s) Molotnikov, A.
Lapovok, R.ORCID iD for Lapovok, R.
Gu, C. F.
Davies, C. H. J.
Estrin, Y.
Journal name Materials science and engineering a
Volume number 550
Start page 312
End page 319
Total pages 8
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2012-07-30
ISSN 0921-5093
Keyword(s) size effect
cup drawing
finite element simulation
Summary Experimental studies into the effect of blank thickness on the deep drawing response of the coarse-grained and ultrafine-grained copper demonstrated the occurrence of a size effect: the dependence of the maximum load and the limit drawing ratio on the blank thickness in sub-millimetre range. A dislocation based constitutive model taking into account the thickness effects was used for numerical simulations of the process. It was demonstrated that the occurrence of the blank thickness effect is governed by the ratio of the blank thickness t to the grain size D of the material. Critical values of the t/. D ratio below which the size effect comes to bearing were determined. The obtained results can be seen as a demonstration of more general suitability of the model developed for predicting microforming operations with full account of the specimen or work-piece dimensions.
Language eng
DOI 10.1016/j.msea.2012.04.079
Field of Research 091207 Metals and Alloy Materials
0912 Materials Engineering
0913 Mechanical Engineering
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2012, Elsevier B.V
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