کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
771878 | 897666 | 2008 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Convex optimization and limit analysis: Application to Gurson and porous Drucker–Prager materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Convex optimization and limit analysis: Application to Gurson and porous Drucker–Prager materials Convex optimization and limit analysis: Application to Gurson and porous Drucker–Prager materials](/preview/png/771878.png)
چکیده انگلیسی
First, we summarize our convex optimization method to solve the static approach of limit analysis. Then, we present the main features of a quadratic extension of a recently proposed mixed finite element method of the kinematic approach. Both methods are applied to obtain precise solutions to a forming problem with Gurson and Drucker–Prager materials. Finally, in order to analyze the criterion of “Porous Drucker–Prager” materials, the Gurson micro–macro model involving a Drucker–Prager matrix containing cylindrical cavities is investigated. Comparing previous results shows, among other things, a similarity in the compression case not always observed for the “Porous von Mises” material between cylindrical and spherical cases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 75, Issue 6, April 2008, Pages 1367–1383
Journal: Engineering Fracture Mechanics - Volume 75, Issue 6, April 2008, Pages 1367–1383
نویسندگان
F. Pastor, Ph. Thoré, E. Loute, J. Pastor, M. Trillat,