Yayınlanmış 1 Ocak 2012
| Sürüm v1
Dergi makalesi
Açık
Determination of Gurson-Tvergaard-Needleman Model Parameters for Failure of a Polymeric Material
Oluşturanlar
- 1. Bogazici Univ, Dept Mech Engn, TR-34342 Istanbul, Turkey
- 2. Univ Illinois, Dept Aerosp Engn, Urbana, IL 61801 USA
Açıklama
In this work, the Gurson-Tvergaard-Needleman model, commonly used for metallic materials, is applied to the failure of a polymeric material - specifically a polyethylene carbon monoxide copolymer, which is an enhanced photodegradable material. Gurson-Tvergaard-Needleman model parameters for this material are obtained using the Nelder-Mead simplex method when correlating experimental and numerical results of both tensile and fracture specimens. Results show that the Gurson-Tvergaard-Needleman model can also be used for polymeric materials with selection of proper parameters that are quite different from the ones proposed for metallic materials.
Dosyalar
bib-a01db7c0-eecd-44de-b109-449734a60065.txt
Dosyalar
(195 Bytes)
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