کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1703571 1012384 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear finite element analysis of functionally graded structures by enhanced assumed strain shell elements
ترجمه فارسی عنوان
تجزیه و تحلیل عناصر غلطی محدود از ساختارهای طبقه بندی عملکردی با افزایش عناصر پوسته مغناطیسی فرض شده
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
چکیده انگلیسی

In this work, large elastic deformation of structures made of functionally graded materials (FGMs) is investigated. Due to highly nonlinear nature of the problem, a total Lagrangian finite element formulation for a seven-parameter shell model is developed. The model accounts explicitly for thickness change, as well as normal stress and strain components through the thickness of the structure. The Green–Saint Venant strain tensor in conjunction with the Kirchhoff–Saint Venant constitutive equation is used to capture the geometric nonlinearity. To circumvent locking phenomenon at large distortions, an enhanced assumed strain formulation is adopted. Five different examples have been analyzed and the effect of enhanced strains and that of FGM exponent is investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 39, Issue 13, 1 July 2015, Pages 3690–3703
نویسندگان
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