Axisymmetric Elastic stress investigation of a 2D- FGM thick hollow cylinder with new material model
Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:

In this paper elastic mechanical stress analysis for a 2D- FGM thick hollow cylinder with finite length have been conducted in which the material properties distributions are following a new developed material model according to the Mori- Tanaka scheme. This cylinder is subjected to internal or external non-uniform pressure loading and finite element method with third order Lagrange shape functions have been utilized to analyze the problem. Verification has been performed with a simplified study in which the results have been extracted by utilizing MLPG method. The results show that the stresses obtained from external pressure loading is higher than its counterpart stresses related to the internal pressure. Furthermore, normalized effective stresses according to the metallic volume fraction along the horizontal center line have significant change by nz variation. Also, normalized effective stresses on the center point of the cylinder wall have been increased by increasing of nr. Finally, it has been demonstrated that the minimum value of the maximum normalized effective stresses for both internal and external pressure loading are related to material distribution of nr=20 and nz=0.1. It means that the ceramic 2 (Si3N4) rich cylinder wall has the lowest value of normalized effective stress.

Language:
Persian
Published:
Journal of Modeling in Engineering, Volume:17 Issue: 56, 2019
Pages:
111 to 122
magiran.com/p1974507  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!