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Finite element code for impact collapse problems of framed structures
Author(s) -
Lynn Kyaw Myo,
Isobe Daigoro
Publication year - 2006
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1858
Subject(s) - classification of discontinuities , finite element method , tower , code (set theory) , structural engineering , gauss , computer science , engineering , mathematics , physics , mathematical analysis , set (abstract data type) , quantum mechanics , programming language
The objective of this study is to develop a dynamic finite element code that can effectively cope with strong non‐linearities and discontinuities common in impact collapse problems, and whose calculation cost is sufficiently low to enable dynamic analyses of full‐model large‐scale structures. The adaptively shifted integration (ASI) technique is modified into the ASI‐Gauss technique to further reduce calculation cost. Algorithms considering member fractures and elemental contact are also presented. Impact collapse analysis is conducted to simulate the aircraft impact with the World Trade Center South Tower (WTC2), and the analytical results showed good agreement with the observed data. Copyright © 2006 John Wiley & Sons, Ltd.