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Title:New finite element for transversely cracked slender beams subjected to transverse loads
Authors:ID Skrinar, Matjaž (Author)
ID Pliberšek, Tomaž (Author)
Files:URL http://dx.doi.org/10.1016/j.commatsci.2006.01.030
 
Language:English
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:The paper covers the derivation of a new finite element for beams with transverse cracks. The derivation is based on a simplified computational model that has already proved itself suitable for the inverse identification of cracks. The model embodies all the necessary major information about the structure's response from the inverse identification point of view, where the presence and location and, if possible, the depth of the crack should be detected from the measured response, usually dynamic. In such situations the stress distributions obtained from 2D finite elements analysis are not as important as the computational model being capable of reliably describing the displacement of the structure. However, from numerical studies it also became evident that the relevance of the model decreases with element thickness. This indicated that shear forces should be included in the analysis process. Therefore, derivation of a new finite element with the inclusion of shear forces effect has been executed. The stiffness matrix for transversely cracked slender beams, as well as the derivation of interpolation functions is presented and all expressions are given in symbolic forms. The example shows that, although with significantly less computational effort than with 2D FE meshes, significant improvement in transverse displacements can be obtained with the presented beam finite element.
Keywords:beams, transverse cracks, computational model, finite element method, transverse displacements
Year of publishing:2007
PID:20.500.12556/DKUM-27435 New window
UDC:624.072.2:531/533
ISSN on article:0927-0256
COBISS.SI-ID:10648598 New window
NUK URN:URN:SI:UM:DK:WQOYK3V8
Publication date in DKUM:01.06.2012
Views:2431
Downloads:112
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Computational materials science
Shortened title:Comput. mater. sci.
Publisher:Elsevier
ISSN:0927-0256
COBISS.SI-ID:15330053 New window

Secondary language

Language:English
Keywords:nosilci, prečne razpoke, računski model, metoda končnih elementov, prečni pomiki


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