Numerical investigation of necking in perforated sheets using the periodic homogenization approach
نویسندگان
چکیده
منابع مشابه
Deformation Analysis of Perforated Sheets using Computational Homogenization
Introduction Perforated sheets are used in a number of industrial applications e.g. the shadow masks in colour monitor and television tubes. Their design requires the characterization of the deformation behaviour of a perforated sheet containing a large number of tiny holes. In practice, the holes are varying through the sheet thickness, however, in modelling this inhomogeneity is mostly ignore...
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15 صفحه اولLocalized Necking in Thin Sheets
SIJMMARY BY USING a simplified constitutive model of a pointed vertex on subsequent yield loci, namely, such that the equations of deformation-theory of rigid-plastic solids apply for fully-active stress increments, the onset of localized necking under biaxial stretching has been predicted. The predictions agree reasonably well with reported experimental observations. Since localized necking un...
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ژورنال
عنوان ژورنال: International Journal of Mechanical Sciences
سال: 2020
ISSN: 0020-7403
DOI: 10.1016/j.ijmecsci.2019.105209