Gaziantep University

GAZİANTEP UNIVERSITY

Türkçe
Asst.Prof.Dr. SOHAYP ABDUL KARIM
HOMEPAGEAIRCRAFT AND AEROSPACE ENGINEERING DEPARTMENT
Publications
International Journals
Year
Content
2017
Journal / Book Name: ACE-X 2017
No/Edition: 11
Authors: S.A.Karim
Nonlinear dynamical behaviour of a rectangular thin plate with Bifurcation diagram
International Book(s) or Sections Of a Book That You Write
Year
Content
2018
Journal / Book Name: chapter book Engineering Design Applications/pp 267-289
No/Edition: 1
Authors: sohayb abdul karim

Nonlinear dynamics of rectangular isotropic thin plates with different boundary conditions are investigated. The plate governing equations of motion are nonlinear partial differential equation (PDE). The nonlinearity is caused by large deflection. The finite element method was used to discretize the continuous structures and convert the PDE into a second order ordinary differential equation (ODE).The implicit Newmark’s scheme and Newton-Raphson’s iteration were used to perform the time integration. Comparisons with the literature are presented in terms of backbone curve and frequency responses for three cases: (1) a simply supported plate with in-plane immovable edges, (2) out-of-plane restrained and in-plane immovable edges, (3) a fully clamped in-plane immovable edge. The model’s results showed excellent agreement, particularly for the first case, validating the procedure. Using the same set of results, bifurcation diagrams were extracted as well. The bifurcation diagrams are an important analysis tools extensively used in nonlinear dynamics showing in a glance the boundaries between different oscillatory modes. To the author’s knowledge, bifurcation diagrams have not been found for thin plates.

2010
Journal / Book Name: Advances and Trends in Structural Engineering, Mechanics and Computation
No/Edition: ch
Authors: S.A. Karim, A. Dafnis & H.-G. Reimerdes
“The stick-slip joint effect on dynamics behaviour of nonlinear beam, chapter Book “Advances and Trends in Structural Engineering, Mechanics and Computation,” S.A. Karim, A. Dafnis & H.-G. Reimerdes, August 16, 2010 by CRC Press Reference ISBN 9780415584722.
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