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Showing 1 to 13 of 13 for “"sandwich beam"”.
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Dynamic analysis of magnetorheological elastomer configured sandwich structures
… magnetorheological elastomers (MREs) and smart sandwich structures. An extensive review, covering existing smart materials and their applications, has highlighted that smart materials and structures can be applied to large scale structures. Comprehensive experimental tests have been carried out …
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The Mechanics of Layered Foam
… layered and hybrid foam structures, such as the sandwich beam, and protective plates comprising foamed and solid materials. These materials may find applications ranging from critical structural members in aircraft wings and hulls of ships, to the packaging industry as well as protective …
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The influence of time-dependent material behavior on the response of sandwich beams
… orbiting precision segmented reflectors, simple sandwich beam models are developed. The beam models included layers representing face sheets, core and adhesive. The issue of time-dependency is essential because the expected life of a reflector is on the order of 20 years. Using the principle of …
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Local Water Slamming of Nonlinear Elastic Sandwich Hulls, and Adiabatic Shear Banding in Simple Shearing Deformations of Thermoelastoviscoplastic Bodies
… method (FEM), transient finite deformations of a sandwich beam with two face sheets and the core made of St. Venant-Kirchhoff materials. A triangular cohesive zone model with stress based criterion for delamination initiation and energy based relation for complete separation is used to analyze …
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Design of Sandwich Structures
Failure modes for sandwich beams of GFRP laminate skins and Nomex honeycomb core are investigated. Theoretical models using honeycomb mechanics and classical beam theory are described. A failure mode map for loading under 3-point bending, is constructed, showing the dependence of failure mode and …
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Análise estática e dinâmica de vigas sandwich pelo método dos elementos finitos
In view of the static and dynamic analysis of sandwich beams submitted to axial loads as well as for the determination of instability critical loads the Finite Element Method has been used in the present work. The developed elements are also applied to beams where the shear strain has been taken …
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Use of advanced composite materials for innovative building design solutions/
… levels is quantified. For this purpose, sandwich beam specimens containing concrete/epoxy interfaces are tested and analyzed using the concepts of fracture mechanics.
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Fabrication and Structural Performance of Random Wetlay Composite Sandwich Panels
… composite panels as the facesheets of honeycomb sandwich structures, it is possible to greatly increase the bending stiffness of the composite without adding significant weight. The random wetlay composite facesheets used in this research consisted of 25% E-glass fibers and 75% PET by weight. The …
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Dynamic Behavior of Sandwich Beams With Internal Resonators
<p>Dynamic behavior of sandwich beams with internal resonators was investigated. The effect of inserting spring-mass resonators into the sandwich core was theoretically analyzed and it was shown that a wave attenuation bandgap exists due to local resonance. Steady state experiments were used to …
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Effect Of Impact Damage On Compression-Compression Fatigue Behavior Of Sandwich Composites
… fatigue behavior for a new sandwich structure made from E-glass/epoxy face sheets over end-grain balsa wood core. Low velocity impact tests were carried out using a drop-weight impact tower by impacting the sandwich beam at the center with energy level slightly higher than …
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A Finite Element, Reduced Order, Frequency Dependent Model of Viscoelastic Damping
… of a clamped-free, homogeneous, Euler-Bernoulli beam, and is of a size comparable to the original elastic finite element model. The modal data before reduction compares well with published GHM results, and the modal data from the reduced model compares well with both. The error between the …
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Manufacture of cellular solids using natural fibre reinforced composites
… and ultrasonic methods. These cores have been sandwiched between two wood veneer facings to form eco-friendly sandwich panels. The compressive and shear properties of these sandwich panels have been modelled and experimentally investigated. The compressive behaviour of the sisal-PP honeycomb …
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A Novel Material Modulus Function for Modeling Viscoelastic Materials
Accurately modeling damping in engineering structures has plagued scientist and engineers for decades. The integration of viscoelastic materials into engineering structures can reduce undesired vibrations and serve as an effective passive control mechanism. Various techniques have been developed to …