کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4965597 | 1448450 | 2018 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analysis of thin-walled beam-shell structures for concept modeling based on higher-order beam theory
ترجمه فارسی عنوان
تجزیه و تحلیل ساختارهای پوسته نازک دیواره ای برای مدل سازی مفهوم بر اساس نظریه پرتو تراز تر
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کلمات کلیدی
پرتو نازک دیواره، پوسته، تئوری پرتو ترمز، تطبیق متغیر فیلد
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
Many engineering structures consist of thin-walled beams and shells. Especially for fast design in an early design stage, a simplified analysis using beams for load-carrying members and shells for panels is very useful, but there appears no accurate beam-shell combined finite element model. The main reason is that the Timoshenko or Euler beam elements are incapable of representing significant sectional deformations near beam joints or near beam-panel interfaces. Although some progress has been made in developing higher-order beam elements that can accurately capture the sectional deformations, there is no investigation to develop higher-order beam and shell combined models useful to analyze various engineering structures. The main contribution of this work is to present the first attempt to model structures made of thin-walled closed beams and shells in terms of higher-order beam elements and shell elements and to establish the matching conditions between the dissimilar field variables of higher-order beam and shell elements along their interfaces. For the finite element analysis of a whole structure, the interface matching conditions are imposed through Lagrange multipliers. High accuracy of the proposed higher-order beam-shell method is demonstrated through static and modal analyses of various structures including a simplified model of a vehicle body-in-white (BIW).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 195, 15 January 2018, Pages 16-33
Journal: Computers & Structures - Volume 195, 15 January 2018, Pages 16-33
نویسندگان
Ngoc-Linh Nguyen, Gang-Won Jang, Soomin Choi, Jaeyong Kim, Yoon Young Kim,