The present work is concerned with the study of the geometrically non-linear steady state periodic forced response of a clamped–clamped beam containing an open crack. The model based on Hamiltonʼs principle and spectral analysis, previously used to investigate various non-linear vibration problems, is used here to determine the effect of the excitation frequency and level of the applied harmonic force, concentrated at the cracked beam middle span, on its dynamic response at large vibration amplitudes. The formulation uses the “cracked beam functions”, denoted as ‘CBF’, previously defined in recent works, obtained by combining the linear theory of vibration and the linear fracture mechanics theory. The crack has been modelled as a linear spring which, for a given depth, the spring constant remains the same for both directions. The results obtained may be used to detect cracks in vibrating structures, via examination of the qualitative and quantitative changes noticed in the non-linear dynamic behaviour, which is commented in the conclusion.
Accepté le :
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El bekkaye Merrimi 1 ; Khalid El bikri 1 ; Rhali Benamar 2
@article{CRMECA_2011__339_11_727_0,
author = {El bekkaye Merrimi and Khalid El bikri and Rhali Benamar},
title = {Geometrically non-linear steady state periodic forced response of a clamped{\textendash}clamped beam with an edge open crack},
journal = {Comptes Rendus. M\'ecanique},
pages = {727--742},
publisher = {Elsevier},
volume = {339},
number = {11},
year = {2011},
doi = {10.1016/j.crme.2011.07.008},
language = {en},
}
TY - JOUR AU - El bekkaye Merrimi AU - Khalid El bikri AU - Rhali Benamar TI - Geometrically non-linear steady state periodic forced response of a clamped–clamped beam with an edge open crack JO - Comptes Rendus. Mécanique PY - 2011 SP - 727 EP - 742 VL - 339 IS - 11 PB - Elsevier DO - 10.1016/j.crme.2011.07.008 LA - en ID - CRMECA_2011__339_11_727_0 ER -
%0 Journal Article %A El bekkaye Merrimi %A Khalid El bikri %A Rhali Benamar %T Geometrically non-linear steady state periodic forced response of a clamped–clamped beam with an edge open crack %J Comptes Rendus. Mécanique %D 2011 %P 727-742 %V 339 %N 11 %I Elsevier %R 10.1016/j.crme.2011.07.008 %G en %F CRMECA_2011__339_11_727_0
El bekkaye Merrimi; Khalid El bikri; Rhali Benamar. Geometrically non-linear steady state periodic forced response of a clamped–clamped beam with an edge open crack. Comptes Rendus. Mécanique, Volume 339 (2011) no. 11, pp. 727-742. doi : 10.1016/j.crme.2011.07.008. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2011.07.008/
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