دورية أكاديمية
Duality and unified analysis of discrete approximations in structural dynamics and wave propagation: Comparison of p-method finite elements with k-method NURBS
| العنوان: | Duality and unified analysis of discrete approximations in structural dynamics and wave propagation: Comparison of p-method finite elements with k-method NURBS |
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| المؤلفون: | Hughes Thomas J. R., REALI, ALESSANDRO, SANGALLI, GIANCARLO |
| المساهمون: | Hughes Thomas, J. R., Reali, Alessandro, Sangalli, Giancarlo |
| سنة النشر: | 2008 |
| المجموعة: | IRIS UNIPV (Università degli studi di Pavia) |
| مصطلحات موضوعية: | STRUCTURAL VIBRATIONS, WAVE PROPAGATION, EIGENVALUE PROBLEMS, DISPERSION ANALYSIS, FINITE ELEMENTS, NURBS, B-SPLINES, ACOUSTIC, OPTICAL BRANCHES, FREQUENCY ERRORS, AMPLITUDE SPECTRA, FREQUENCY RESPONSE SPECTRA, EVANESCENT WAVES, STOPPING BANDS |
| الوصف: | We study the discretization behavior of classical finite element and NURBS approximations on problems of structural vibrations and wave propagation. We find that, on the basis of equal numbers of degrees-of- freedom and bandwidth, NURBS have superior approximation properties. In fact, we observe that the high mode behavior of classical finite elements is divergent with the order of approximation, a surprisingly negative result. On the other hand, NURBS offer almost spectral approximation properties, and all modes converge with increasing order of approximation. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | STAMPA |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/WOS:000260764700003; volume:197; issue:49-50; firstpage:4104; lastpage:4124; journal:COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING; http://hdl.handle.net/11571/137873Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-52749086594; http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V29-4S92THX-4&_user=3719172&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000061210&_version=1&_urlVersion=0&_userid=3719172&md5=fa570c3a391d2fb5db0db8c6370e9dbbTest |
| DOI: | 10.1016/j.cma.2008.04.006 |
| الإتاحة: | https://doi.org/10.1016/j.cma.2008.04.006Test http://hdl.handle.net/11571/137873Test http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V29-4S92THX-4&_user=3719172&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000061210&_version=1&_urlVersion=0&_userid=3719172&md5=fa570c3a391d2fb5db0db8c6370e9dbbTest |
| رقم الانضمام: | edsbas.B8D884CC |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.cma.2008.04.006 |
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