A double-superposition global–local theory for vibration and dynamic buckling analyses of viscoelastic composite/sandwich plates: a complex modulus approach

Shariyat, M.

doi:10.1007/s00419-010-0483-y

Cited by 39 publications

(5 citation statements)

References 50 publications

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“…In 2011, Shariyat [26][27][28] successively developed a nonlinear double-superposition global-local theory for dynamic buckling of imperfect viscoelastic composite/sandwich plates: A hierarchical constitutive model and a double-superposition global-local theory for vibration and dynamic buckling analyses of viscoelastic composite/sandwich plates: a complex modulus approach. Then, a high-order double-superposition global-local theory inherently suitable for nonlinear analyses was proposed and employed for nonlinear dynamic buckling and postbuckling analyses of imperfect viscoelastic composite/sandwich cylindrical shells subjected to thermo harmonic excitation loads by him.…”

Section: Introductionmentioning

confidence: 99%

Thermoviscoelastic dynamic response for a composite material thin narrow strip

Dai

Liu

2015

J Mech Sci Technol

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Based on von Karman nonlinear strain-displacement relationships and classical thin plate theory, a list of nonlinear dynamic equilibrium equations for a viscoelastic composite material thin narrow strip under thermal and mechanic loads are deduced. According to the material constitutive relationship and the relaxation modulus in the form of the Prony series, combing with the Newmark method and the Newton-cotes integration method, a new numerical algorithm for direct solving the whole problem in the time domain is established. By applying this numerical algorithm, the viscoelastic composite material thin narrow strip as the research subject is analyzed systematically, and its rich dynamical behaviors are revealed comprehensively. To verify the accuracy of the present work, a comparison is made with previously published results. Finally, the viscoelastic composite material thin narrow strip under harmonic excitation load and impact load are discussed in detail, and many valuable thermoviscoelastic dynamic characteristics are revealed.

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Section: Introductionmentioning

confidence: 99%

Thermoviscoelastic dynamic response for a composite material thin narrow strip

Dai

Liu

2015

J Mech Sci Technol

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“…PU elastomer is significantly viscoelastic with high damping characteristics. erefore, a PU elastomer core can potentially raise the noise isolation and damping behaviors of the whole SPS structure [3]. In shipbuilding, stiffeners are usually bonded with steel plates or sandwich plates to increase the stiffness of the whole structure under variable loads.…”

Section: Introductionmentioning

confidence: 99%

Buckling Analysis of Sandwich Plate Systems with Stiffening Ribs: Theoretical, Numerical, and Experimental Approaches

Guang-ping

Wang

Xue

et al. 2019

Advances in Civil Engineering

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This paper discusses a global buckling analysis approach for sandwich plates with stiffening ribs. The approach is based on theoretical study and is implemented by the finite element method (FEM). The equilibrium equation corresponding to critical global buckling of the sandwich plate with stiffening ribs under simple supported boundary condition is established by the energy method. The critical buckling solutions for a typical rectangular sandwich plate system (SPS) with a single stiffening rib in the longitudinal direction are then investigated while varying the potential influencing factors. The shear rigidity within the inner core exerts little effect on global buckling and can be neglected. An FEM study on elastic buckling was then conducted via ANSYS software. The advantages of the SPS were highlighted via its elastic eigenvalue buckling numerical analysis with multiple stiffeners. The ultimate buckling loads were computed similarly for different influential factors. Finally, an SPS specimen was tested in a compression test. The results showed that when the rib spacing is large, the local buckling of the plates in the grillage is controllable and the SPS is more resistant to both local and global buckling. The results based on our theoretical method agreed well with those of the FEM and experimental results.

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“…Metal layers have been applied in conventional fiber-reinforced polymers to improve the impact resistance [17]. Other structures, such as particle-reinforced [18,19], sandwich plate [20,21], and three-dimensional (3D) fabric [22,23] structures, have been developed in recent years.…”

Section: Introductionmentioning

confidence: 99%

A Three-Phase Model Characterizing the Low-Velocity Impact Response of SMA-Reinforced Composites under a Vibrating Boundary Condition

et al. 2018

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Structural vibration induced by dynamic load or natural vibration is a non-negligible factor in failure analysis. Based on a vibrating boundary condition, the impact resistance of shape memory alloy (SMA)-reinforced composites was investigated. In this investigation, a modified Hashin’s failure criterion, Brinson’s model, and a visco-hyperelastic model were implemented into a numerical model to characterize the mechanical behavior of glass fiber/epoxy resin laminates, SMAs, and interphase, respectively. First, a fixed boundary condition was maintained in the simulation to verify the accuracy of the material parameters and procedures by a comparison with experimental data. Then, a series of vibrating boundaries with different frequencies and amplitudes was applied during the simulation process to reveal the effect on impact resistances. The results indicate that the impact resistance of the composite under a higher frequency or a larger amplitude is lower than that under a lower frequency or a smaller amplitude.

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A double-superposition global–local theory for vibration and dynamic buckling analyses of viscoelastic composite/sandwich plates: a complex modulus approach

Cited by 39 publications

References 50 publications

Thermoviscoelastic dynamic response for a composite material thin narrow strip

Thermoviscoelastic dynamic response for a composite material thin narrow strip

Buckling Analysis of Sandwich Plate Systems with Stiffening Ribs: Theoretical, Numerical, and Experimental Approaches

A Three-Phase Model Characterizing the Low-Velocity Impact Response of SMA-Reinforced Composites under a Vibrating Boundary Condition

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