Transient response of a laminated sandwich plate with viscoelastic core subjected to air blast: theory and experiment

Balkan, Demet; Acar, O.; Türkmen, Halit S.; Mecitoğlu, Zahit

doi:10.2495/su100101

Cited by 3 publications

(3 citation statements)

References 21 publications

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“…The method of choice should be not only time-dependent but also position-dependent, as described in [37,42]. By analytical equations that were derived from physical considerations and experimental test data, this approach should calculate and apply the accurate pressure at each time step for each element of the structural model.…”

Section: Assessment Of Numerical Methodsmentioning

confidence: 99%

A Numerical Method for Blast Shock Wave Analysis of Missile Launch from Aircraft

Heimbs

Ritzer

Markmiller

2015

International Journal of Aerospace Engineering

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An efficient empirical approach was developed to accurately represent the blast shock wave loading resulting from the launch of a missile from a military aircraft to be used in numerical analyses. Based on experimental test series of missile launches in laboratory environment and from a helicopter, equations were derived to predict the time- and position-dependent overpressure. The method was finally applied and validated in a structural analysis of a helicopter tail boom under missile launch shock wave loading.

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Section: Assessment Of Numerical Methodsmentioning

confidence: 99%

A Numerical Method for Blast Shock Wave Analysis of Missile Launch from Aircraft

Heimbs

Ritzer

Markmiller

2015

International Journal of Aerospace Engineering

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“…Balkan et al. [13] investigated transient response of simply supported sandwich plate with viscoelastic core by assuming the Kelvin-Voigt constitutive model under the action of air blast load. Yan Wei et al.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional pulse response of curved composite sandwich panel with compressible core using non-linear higher-order theory

Ahmadi

Pashaei

Jafari-Talookolaei

2020

Jnl of Sandwich Structures & Materials

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In this paper, the dynamic response of cylindrical sandwich panels with compressible core is obtained using the extended non-linear higher-order sandwich panel theory. It is assumed that the sandwich panel has simply supported boundary at all edges and is consisted of orthotropic face sheets and viscoelastic core layer. To describe the mechanical properties of the viscoelastic foam core, the Kelvin-Voigt linear viscoelastic model was applied. Three-dimensional linear equations of motions were used to describe the sandwich panel deformations. The effects of various parameters including the panel span, core and facing thickness, the viscous damping factor, pulse duration, and maximum pressure on the dynamic response of the sandwich cylindrical panel are studied. The results obtained from present method are compared with finite element solutions and those reported in the literature, and consequently, agreement among the results could be observed. The results shown that applied viscoelastic model has a signification effect on the panel response and reduces the magnitude of vibrations. The presented programming code (DQ) needs less computational time and computer hardware capacity and is faster than finite element solution.

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“…Linear sandwich plate theory is of vital importance in the analysis and design of sandwich panels which are frequently encountered in building construction, vehicle construction, airplane construction and refrigeration systems. (Liaw Boen Dar, 1965, Balken et al 2010. Some advantages of sandwich plates are (Allen, 1969;Vinson, 2001;Raville, 1955):…”

Section: Mechanical Engineering: Dynamics and Strength Of Machinesmentioning

confidence: 99%

Galerkin–Vlasov Method for Deflection Analysis of Isotropic Sandwich Plates under Uniform Load

Mama¹,

Ike²

2018

JES

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Abstract. In this work, the Galerkin-Vlasov method was used to solve the governing partial differential equation of equilibrium for isotropic sandwich plates with simply supported edges (x = a, y = b) and under uniform load on the plate domain ( , ).Vlasov procedure was adopted in choosing the displacement shape functions as orthogonal eigen functions of dynamic Euler Bernoulli beams with equivalent spans, simple supports and loading as the plate. The resulting Galerkin-Vlasov equation was solved to obtain the unknown generalised shape function. It was found that the deflections obtained were exact solutions to the problem of bending isotropic sandwich plates. The deflection was found to be made up of two components: flexural deformation and shear deformation.

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Transient response of a laminated sandwich plate with viscoelastic core subjected to air blast: theory and experiment

Cited by 3 publications

References 21 publications

A Numerical Method for Blast Shock Wave Analysis of Missile Launch from Aircraft

A Numerical Method for Blast Shock Wave Analysis of Missile Launch from Aircraft

Three-dimensional pulse response of curved composite sandwich panel with compressible core using non-linear higher-order theory

Galerkin–Vlasov Method for Deflection Analysis of Isotropic Sandwich Plates under Uniform Load

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