Dynamics of a Delaminated Timoshenko Beam Subjected to a Moving Oscillatory Mass

Kargarnovin, M. H.; Ahmadian, Mohammad Taghi; Jafari-Talookolaei, Ramazan-Ali

doi:10.1080/15397734.2012.658504

Cited by 24 publications

(17 citation statements)

References 23 publications

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“…Li et al (2013) presented a novel finite element method to solve static and free vibration problems of axially and/or transversally functionally graded beams with variable cross-section profile by introduction of exact displacement interpolation function. The dynamic response of a delaminated composite beam under the action of moving oscillatory mass was presented by Kargarnovin et al (2012). Jun and Hongxing (2009b) developed a dynamic stiffness matrix of the laminated composite beams based on trigonometric shear deformation theory and showed the effect of material anisotropy on the natural frequencies of the beam for different boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Coupled Static and Dynamic Analyses of Shear Deformable Composite Beams with Channel-Sections^#

Kim

Jeon

2013

Mechanics Based Design of Structures and Machines

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In this study, the theoretical and numerical models are developed for the fully coupled static and dynamic analyses of the shear deformable laminated composite beams with channel-sections based on an orthogonal Cartesian coordinate system. The current composite beams take into account the transverse shear and the restrained warping induced shear deformation by using the first-order shear deformation beam theory. An analytical technique is used to derive the strain energy, the geometric potential energy, and the kinetic energy of the beam in a systematic manner considering all the deformation effects and their mutual couplings. To solve the static and dynamic problems, three different types of finite beam elements, namely, linear, quadratic and cubic elements are used. In order to demonstrate the validity of this study, the numerical solutions for the static and dynamics problems of channel-section beams are presented and compared with the experimental test results and the results obtained from other researchers, and the detailed three-dimensional analysis results using the shell elements of ABAQUS. The vibrational behavior is investigated with respect to the modulus ratios and the fiber angle change. Especially, the effect of shear deformation under the compressive and tensile forces on the coupled vibrational mode is newly studied.

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Section: Introductionmentioning

confidence: 99%

Coupled Static and Dynamic Analyses of Shear Deformable Composite Beams with Channel-Sections^#

Kim

Jeon

2013

Mechanics Based Design of Structures and Machines

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“…Thus, shear deformation is also another important aspect in the analysis of such multilayered composite structures. During the past decades, the free vibrations of the delaminated composite beams based on the classical theory have received considerable attentions by many researchers [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15], but only few publications were devoted to include partially the Poisson's effects and the influences of the couplings, shear deformation, and rotary inertia for beams [16][17][18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of a generally layered composite beam with single delamination based on the shear deformation theory

Jafari-Talookolaei

Abedi

Kargarnovin

et al. 2015

Science and Engineering of Composite Materials

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The free vibration analysis of generally laminated composite beam (LCB) with a delamination is presented using the finite element method (FEM). The effect of material couplings (bending-tension, bending-twist, and tension-twist couplings) with the effects of shear deformation, rotary inertia, and Poisson's effect are taken into account. To verify the validity and the accuracy of this study, the numerical solutions are presented and compared with the results from available references and very good agreement observed. Furthermore, the effects of some parameters such as slenderness ratio, the rotary inertia, the shear deformation, material anisotropy, ply configuration, and delamination parameters on the natural frequency of the delaminated beam are examined.

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“…Not only Euler-Bernoulli beams received researchers' attention, but also Timoshenko beams (Kim and Kim, 2003;Chang and Chen, 2004;Masoud et al 2006;Masoud and Al-Said, 2009;Kargarnovin et al 2012) and Frames (Rezaiee-Pajand et al 2014) were in the focus. Crack detection in bars, rods and shafts is particularly important as they are used in all rotating machines and gearboxes, and may lead to tragic accidents (Samuel and Pines 2005).…”

Section: Introductionmentioning

confidence: 99%

Crack Detection Using Mixed Axial and Bending Natural Frequencies in Metallic Euler-Bernoulli Beam

Mostafa

Tawfik

2016

Lat. Am. j. solids struct.

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For many years, several crack detection attempts have been using measurements of the structure's modal parameters. One of the easiest is to measure and correlate the change in natural frequencies to cracks. The direct and inverse problem have been discussed in literature. However, the inverse problem, being addressed in this paper, is a challenging one, where it starts by measuring certain structural properties and estimate the corresponding crack location and size. Unlike previous studies that utilizing natural frequencies from one direction, both axial and bending natural frequencies are used together to determine crack size and location, without prior estimation of natural frequencies of the intact beam. The results obtained showing promising capabilities in crack detection.

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Dynamics of a Delaminated Timoshenko Beam Subjected to a Moving Oscillatory Mass

Cited by 24 publications

References 23 publications

Coupled Static and Dynamic Analyses of Shear Deformable Composite Beams with Channel-Sections^#

Coupled Static and Dynamic Analyses of Shear Deformable Composite Beams with Channel-Sections^#

Dynamics of a generally layered composite beam with single delamination based on the shear deformation theory

Crack Detection Using Mixed Axial and Bending Natural Frequencies in Metallic Euler-Bernoulli Beam

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Dynamics of a Delaminated Timoshenko Beam Subjected to a Moving Oscillatory Mass

Cited by 24 publications

References 23 publications

Coupled Static and Dynamic Analyses of Shear Deformable Composite Beams with Channel-Sections#

Coupled Static and Dynamic Analyses of Shear Deformable Composite Beams with Channel-Sections#

Dynamics of a generally layered composite beam with single delamination based on the shear deformation theory

Crack Detection Using Mixed Axial and Bending Natural Frequencies in Metallic Euler-Bernoulli Beam

Contact Info

Product

Resources

About

Coupled Static and Dynamic Analyses of Shear Deformable Composite Beams with Channel-Sections^#

Coupled Static and Dynamic Analyses of Shear Deformable Composite Beams with Channel-Sections^#