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Introduction
Published in Sumit Sharma, Composite Materials, 2021
Laminated composite materials consist of layers of at least two different materials bonded together. Lamination is used to combine the best aspects of the constituent layers and bonding material in order to achieve a more useful material. The properties that can be emphasized by lamination are strength, stiffness, low weight, corrosion resistance etc. The laminated composites can be further classified as: BimetalsClad metalsLaminated glassPlastic-based laminates.
Applications of Electron Beam Radiation
Published in Jiri George Drobny, Radiation Technology for Polymers, 2020
Laminating adhesives are used to bond layers of different materials together. There are many possible combinations, including different polymers, copolymers, papers, foils, fabrics, films, metals, glass, etc. The bond between the individual layers has to be sufficiently strong to hold the laminate together. This is accomplished by applying the adhesive in the molten state (hot melt) and creating the bond upon cooling or by cross-linking. Cross-linking can be accomplished by using a reactive adhesive, consisting of two components, which react when mixed (e.g., polyurethanes or epoxies), or by radiation.
Introduction to Composite Materials
Published in Robert M. Jones, Mechanics of Composite Materials, 2018
Laminated composite materials consist of layers of at least two different materials that are bonded together. Lamination is used to combine the best aspects of the constituent layers and bonding material in order to achieve a more useful material. The properties that can be emphasized by lamination are strength, stiffness, low weight, corrosion resistance, wear resistance, beauty or attractiveness, thermal insulation, acoustical insulation, etc. Such claims are best represented by the examples in the following paragraphs in which bimetals, clad metals, laminated glass, plastic-based laminates, and laminated fibrous composite materials are described.
Review of Heat Exchangers Enabled by Polymer and Polymer Composite Additive Manufacturing
Published in Heat Transfer Engineering, 2018
David C. Deisenroth, Ramin Moradi, Amir H. Shooshtari, Farah Singer, Avram Bar-Cohen, Michael Ohadi
Methods that deposit solid films are often referred to as sheet lamination, and an example of the process is illustrated in Figure 3. The solid films are often bonded (usually with adhesive), then cut to shape with a laser [33] or knife. In this method, thicker layers may be used to increase build speed, but these will result in more significant stepping around layer perimeters. Sheet lamination can use several categories of materials such as, paper, metal, polymers, ceramics, and some combinations of those materials [34–36]. This method often results in highly anisotropic material properties due to the bonding material required between layers [37]. Examples of heat exchangers studied with a novel layer-based additive manufacturing method will be discussed in the “Expanded polymer film HX's” section.
Free vibration analysis of cross-ply laminated beam structures using refined beam theories and B-spline basis functions
Published in Mechanics of Advanced Materials and Structures, 2021
Sarah Ghazanfari, Saleh Hamzehei-Javaran, Amirhadi Alesadi, Saeed Shojaee
Over the past decades, the application of multilayered beams has become ever-increasing in various industries such as aerospace, automotive, ship vehicles and civil engineering. In fact, composite beam structures are widely used as aircraft wings, helicopter rotor blades in aerospace engineering or as bridge decks in civil engineering industry, where high strength-to-weight and stiffness-to-weight ratios are required. The properties that can be improved by lamination are strength, stiffness, low weight, corrosion resistance, wear, thermal insulation. Therefore, the comprehension of composite beams manners under different conditions such as free vibration seems to be crucial.
A stability result for a memory-type Laminated-thermoelastic system with Maxwell–Cattaneo heat conduction
Published in Journal of Thermal Stresses, 2020
Soh E. Mukiawa, Tijani A. Apalara, Salim A. Messaoudi
In this article, we study the asymptotic stability of a vibrating structure that consists of two identical layer of beams with uniform thickness. These beams are sticked together by an adhesive force in such a way that allows them to slip over each other, but remain constantly in contact with each other. These types of structures are of great importance in the field of engineering and are formally called laminated beams. The process of Lamination involves combining multiple substrates together to produce a stable layer structure by adhesives, heat, pressure, and mechanical bonding; see [1, 2] and Figure 1 (Shim [3]) for thermal laminating processes. The adhesive layer of the two beams which is of negligible mass and thickness generates a frictional force that is proportional to the number of slips of the beams. Hence, this creates a structural damping in the interfacial slip. The equations describing the motion of two-layer beams see Figure 2, were derived by Hansen and Spies in [4] and are given by where is the transverse displacement, is the rotation angle, is proportional to the amount of slip along the interface, denotes the effective rotation angle. The physical parameters and γ are respectively: length of beams, the density, mass moment of inertia, shear stiffness, flexural rigidity, adhesive damping, and adhesive stiffness. The adhesive damping plays an important role in the stabilization of system (1).