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Showing 1 to 20 of 25 for “"Plain Weave"”.
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Finite element damage modeling of plain weave fabrics
Plain weave fabrics are used as reinforcements in composites in order to obtain improved inter-laminar properties. But these advantages are at the cost of reduced stiffness and strength in the in-plane directions. Therefore, it is important to study the mechanical behavior of such composites. In …
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High Shear Strain Characterization of Plain Weave Fiber Reinforced Lamina
… Picture Frame Shear (PFS) fixture to test plain weave composite lamina in high shear strain load cases similar to operational conditions. Before viscoelastic characterization can occur, the PFS fixture was tested using current plain weave materials of interest. Various load cases including …
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Modeling of textile based composite materials
… is made for the linear elastic response of a plain weave textile composite subjected to various boundary conditions and loadings. Hashin's failure criterion and a maximum stress criterion are employed to predict the failure of the yam and matrix material, respectively. A material degradation …
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Development of image based crack measurements, to investigate delamination in different weave Fibre Reinforced Polymers
… of fibre reinforced polymers, of different weave patterns, using an image-based crack measurement method. Glass fibre reinforce polymer (FRP) with three different weave pattern namely Unidirectional, Plain weave and Twill weave patterns were manufactured using the infusion process. Waterjet …
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The linear elastic biaxial response of plain-woven meshes
… the linear elastic constitutive response of plain-weave meshes under biaxial tension and bending. In-plane force-deflection relations are derived through examining a representative element of the mesh. The analysis includes the contributions of tension, bending, and transverse shear to the …
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Numerical Constitutive Models of Woven and Braided Textile Structural Composites
… are determined from unit cell models of balanced plain weave, 2D braid, 2D triaxial braid and 4x4 twill textile composite materials consisting of interlaced or intertwined yarns. The yarn paths are modeled with undulation portions, in which one yarn passes over and under one or more yarns, and …
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Evaluation of carbon fiber laminates via the use of pulse-echo ultrasound to quantify ply-stack orientation and manufacturing defects.
… the quantification of the ply stack of laminated plain-weave carbon fiber composites and the detection and sizing of foreign objects within carbon fiber laminates via the use of pulse-echo ultrasound. The first scientific contribution of this work is a method to determine the number of lamina and …
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The effect of loom settings on weaving resistance and fabric properties
… in graphs. The main experiments relate to plain weave, but the weaving of 2/2 twill is covered in a rather less comprehensive way. The optimum settings are found to be different for the two weaves, and these differences are explained in terms of previous theoretical work. It is shown that …
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A continuum constitutive model for the mechanical behavior of woven fabrics including slip and failure
… to the behavior of the underlying yarns and weave. The resulting continuum model is more computationally efficient than a discrete model that represents every yam or fiber explicitly. Because it is physically based on the fabric mesostructure, the model can be used to predict the behavior of …
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The effects of process parameters on the properties of resin transfer molded composites
… and AS-4 carbon in both sized and unsized plain weave fabrics. Vinyl ester, epoxy, and cyanate ester resins were pressure injected into these fabrics. The epoxy panels were processed with varying injection temperatures and pressures. A density-based technique was used to measure the fiber …
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Mechanical behavior of a ceramic matrix composite material
… glass reinforced with several layers of plain weave silicon carbide cloth (Nicalon) has been studied. The mechanical testing which was performed included both flexural and tensile loading configurations. This testing was done not only to determine the material properties, but also to …
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The response of concave singly curved fibre reinforced moulded sandwich and laminated composite panels to blast loading
… laminates were made from 16 layers of 400 g/m² plain weave glass fibre infused with Prime 20 LV epoxy resin. The sandwich panels consisted of a 15 mm thick Airex C70:75 core sandwiched between the 12 layers of 400 g/m² plain weave glass fibre and infused with Prime 20 LV epoxy resin. This …
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Some studies of frictional properties of fabrics
… number of traverses. Secondly, a series of plain weave fabrics is used whose density of consolidation is systematically increased by increasing the picks per unit distance. Thirdly, the fricative resistance of a group of woven pile (cord) fabrics is measured with the purpose of demonstrating …
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Free Vibration Response Comparison of Composite Beams with Fluid Structure Interaction
… Composite beams with six layers of non-biased, plain weave, 6 oz E-glass were used with two different layer orientations and boundary conditions. Five samples were layered at the 0 and 90 degree orientations and five samples were layered at the plus and minus 45 degree orientation. The Digital …
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Numerical Methods for Predicting the Dynamic Crushing Response and Energy Absorption of Composite Aluminum Honeycomb Sandwich Structures
… of the model verified separately, three plain weave composite aluminum honeycomb sandwich structures were modeled, one with [0/90] composite sheets completely bonded to the core, one with [0/90] composite sheets partially bonded to the core, and one with [±45] composite sheets partially …
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Verification of a three-dimensional resin transfer molding process simulation model
… both methods yield similar permeabilities for a plain weave, bi-axial fiberglass fabric. Also, a method to determine principal directions and permeabilities is discussed and results are shown for a multi-axial warp knit preform. The flow of resin through a blade-stiffened preform was modeled and …
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The Manufacturing and Ballistic Testing of Tri-axial Quasi Three Dimensional Woven Composites Layered in Polyurea
… be used in conjunction with the tri-axial Q3D weave and polyurea. The addition of the basalt layer is to see if the shock wave of the impact will yield different results with the thicker and stiffer bi-axial plain weave layered basalt composite. The unique geometry of the quasi-3D tri-axial …
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Impact damage behaviour of lightweight materials
… indentation and impact perforation response of plain weave carbon fibre reinforced epoxy composites to investigate the effect of toughening the epoxy matrix to improve resistance to indentation and impact. The nose shape sensitivity of failure initiation in carbon/epoxy composite targets is …
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Material and Geometric Analysis of Structures Subjected to Large Deformation
… load paths. An energy based continuum model for plain weave fabric is developed, where a sinusoidal shape function is used to describe the yarn waviness before and after deformation. Castigliano's theorem is applied to determine the interactions between yarns. The model presented has been …
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Effect of Sustainable and Composite Materials on the Mechanical Behavior of Sandwich Panels Under Edgewise Compressive Loading
… Hexply AGP280-5H Carbon Fiber Pre-Preg, B601 Plain Weave Hemp, D118DKBR Split Herringbone Weave Hemp, and NB308T 7725 Texalium Fiberglass Pre-Preg. The sandwich panels were cured using a composite heat press and followed the recommended cure cycle for the material’s resin matrix. The variation …
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