کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
246645 502382 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Physics engine-driven visualization of deactivated elements and its application in bridge collapse simulation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Physics engine-driven visualization of deactivated elements and its application in bridge collapse simulation
چکیده انگلیسی


• We propose a visualization method of deactivated elements by fragment simulation.
• We reconstruct a complete process of bridge collapses in a 3D visual simulation.
• Visual simulation of bridge collapse is real-time.
• Fragment simulation has proven accurate.
• Fragment simulation complements the limitations of the general FE analysis results.

Element deactivation is one of the most suitable methods in a finite element (FE) analysis of discontinuous features of collapse accidents. However, deactivated elements are typically invisible in the general purpose FE analysis, leading to a very incomplete outcome. To visualize the deactivated elements, a 3D simulation method of fragments based on a physics engine is proposed herein. A working system for fragment simulation is designed by integrating a graphics engine, an FE analysis and a physics engine. To reduce the extensive computational workload due to massive fragments, a grid-clustering algorithm for fragment modeling is also proposed. Using the proposed simulation methodology, the collapse processes of two bridges are completely replicated. The results demonstrate a realistic and real-time visual simulation of deactivated elements, which complements the limitations of the general FE analysis results. This study provides an important reference for conducting detailed investigations of bridge collapse accidents.

A 3D real-time visualization method of deactivated elements using fragment simulation is proposed to reconstruct a complete process of bridge collapses, which complements the limitations of the general FE analysis results.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Automation in Construction - Volume 35, November 2013, Pages 471–481
نویسندگان
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