کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4928495 1432072 2017 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on influence of nonlinear finite element method models on ultimate bending moment for hull girder
ترجمه فارسی عنوان
بررسی تاثیر مدل های غلط نوری بر المان های نهایی در جهت خم شدن بدنه
کلمات کلیدی
کشتی، مجتمع مسکونی، سقوط - فروپاشی، خم شدن تجزیه و تحلیل عنصر محدود،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
The various assessment methods of ultimate strength for hull girder of ships or offshore structures might lead to different results and computation time. The nonlinear finite element (FE) analyses include the implicit static analysis and explicit dynamic analysis, which both can consider the large deflection and material nonlinearity during the process of progressive collapse. Comparing with the implicit static analysis, the explicit dynamic analysis can consider the transient influence of time and avoid the convergence issue in iterative procedure. The object of the present paper is to figure out a reliable and suitable FE modelling in the explicit dynamic method, which could keep the balance of the acceptable accurate results and computation resources. Several influential factors on the collapse behaviours of hull girder are discussed including boundary conditions, geometric ranges of finite element model, element types, loading methods and loading time. The results of a Suezmax oil tanker and Reckling models assessed by the explicit dynamic method are compared with that by the other analytical methods or in the experiment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 119, October 2017, Pages 282-295
نویسندگان
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