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  • Mechanics of plain-woven fabrics for inflated

    Pressurized fabric tubes, pressure-stabilized beams (known as air beams) and air-inflated structures are considered to be valuable technologies for lightweight, rapidly deployable structures. Design optimization of an inflated structure depends on a thorough understanding of woven fabric mechanics. In this paper the bending response of woven pressure-stabilized beams have been experimentally ...

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  • Conceptual Design and Preliminarily Structural Analysis of ...

    inflatable structures. The work in [6] presents the development of a mathematical approach to studying the mechanics of plain-woven fabrics, applied to inflated structures; a similar work by Apedo et al. [7] focuses the attention on the vibration modes of inflatable beams built with orthotropic woven fabric.

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  • Modeling of Plain Woven Fabrics for Inflatable

    2020-10-6 · Modeling of Plain Woven Fabrics for Inflatable Aerodynamic Decelerators Jeremy L. Hill 1. 2and Robert D. Braun. Georgia Institute of Technology, Atlanta, GA, 30332 -0150 . Inflatable Aerodynamic Decelerators (IADs) are often constructed from complex fabrics. The simplest example being a plain woven fabric. Optimization of IADs relies heavily on a

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  • Technology Mechanics Overview of Air-Inflated Fabric ...

    2011-5-14 · Technology & Mechanics Overview of Air-Inflated Fabric Structures Paul V. Cavallaro Ranges, Engineering, and Analysis Department NEWPORT Naval Undersea Warfare Center Division Newport, Rhode Island Approved for public release; distribution is unlimited. Reprint of a chapter in 2007 Yearbook of Science & Technology, McGraw-Hill, New York, NY, 2006.

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  • Decrimping Behavior of Uncoated Plain-woven Fabrics ...

    2018-2-22 · Through analysis and experiment, this study addressed these architectural changes, such as crimp interchange, and their effects on the mechanical properties of uncoated plain-woven fabrics. This was accomplished through meso-scale finite element analyses and material tests using a recently developed experimental fixture.

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  • Fiber Crimp Distribution in Nonwoven Structure

    Abstract The use of enhanced plain woven fabrics for aerospace engineering needs essential and accurate mechanical parameters for analyzing structural behavior and performing numerical simulations. The uniaxial tensile tests are direct and effective approaches to investigate these mechanical properties. This study focused on uniaxial monotonic and cyclic mechanical properties of an enhanced ...

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  • Effects of on-axis and off-axis tension on uniaxial ...

    This study focused on uniaxial monotonic and cyclic mechanical properties of an enhanced plain woven fabrics URETEK 5893 in on-axis and off-axis tension. For uniaxial monotonic mechanical properties, an improved method to determine yield stress was proposed and digital image correlation (DIC) technique was utilized to investigate detailed breaking mechanism.

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  • Mechanical property characterization of film-fabric ...

    Tensairity ® combines inflated structures with cables and struts leading to a tremendous increase of the load bearing behaviour of inflated beams [1], [2]. First permanent applications of this new class of fabric structure are a roof for a parking garage or a skier-bridge with over 50 m span, while the technology has also an enormous potential for temporary structures such as shelters, tents or bridges.

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  • A simple model describing the non-linear biaxial

    The low in-plane shear stiffness of woven fabrics provides them with high formability, and hence the characterization of this stiffness is of high impotence. Although it was assumed in the past that a fabric’s shear modulus is merely a function of its shear angle, recent evidences show that this material property is also dependent on other factors such as tension along yarns.

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  • DeepDyve - Unlimited Access to Peer-Reviewed

    DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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  • NUWC-NPT Technical Report 12,141 15 August2013

    2013-12-24 · For use in air-inflated structures, the skins are made impermeable by laminating them with layers of an elastomeric material, such as rubber, polyvinyl chloride (PVC), urethane, and neoprene, on both sides to fully contain a volume of air with their edges seamed. The skins consist of (1) a base fabric that is plain-woven using two

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  • Energy Absorbability of Large Scale Inflatable

    2007-12-14 · Mechanics of Plain-Woven Fabrics for Inflated Structures,” ... 2003, “Advances in Fabric and Structural Analyses of Pressure Inflated Structures”, Conference Proceedings of the 2003 ASME International Mechanical Engineering Congress and Exposition, IMECE 2003–55060. 4.

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  • Ali Sadegh | The City College of New York

    2021-7-8 · Sadegh, A., and Cavallaro, P. ,'Nonlinear Constitutive Relationships of Plain-Woven Fabric For Inflatable Structures', Macro-to Nano-Scale Inelastic Behavior of Materials: Plasticity, Fatigue and Fracture, Edited by Akhtar Khan and Babak Farrokh, Proceedings of PLASTICITY '09, The 15th International Symposium on Plasticity and its Current ...

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  • [PDF] Mechanics of Air-Inflated Drop-Stitch Fabric

    Abstract : Rapid deployability and mobility of lightweight structures, namely inflatable structures, are of growing significance to the military and space communities. When deployment and rigidity are driven by pressure (for example, air or fluid) and materials such as textiles, elastomers, and flexible composites are used for the structure, significant load-carrying capacity per unit weight ...

    Get Price
  • Decrimping Behavior of Uncoated Plain-woven

    2018-2-22 · Presently, design methods for inflated fabric structures are not well established. Analysis tools for their efficient design lag behind those for conventional structures, partly because woven fabrics do not behave as a continuum. Changes in fabric architecture occur with loading and lead to several sources of nonlinear response.

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  • APPROACHES IN MODELLING THE MECHANICAL

    2015-6-25 · Fig. 4 – The woven textile pattern of interlacing yarns: a – plain weave, b and c – twill weaves (adopted from Ivanov, 2009). 2. Modelling the Mechanical Characteristics of Woven Fabrics In the past decades, complex composite reinforcements such as textiles have become widely used in the industry, due to their inproved manufacturing

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  • A multi-scale method for predicting ABD stiffness

    2021, Computational Mechanics. The influence of the layer arrangement on the distortional post-buckling behavior of open section beams. 2020, Materials. ... Effects of on-axis and off-axis tension on uniaxial mechanical properties of plain woven fabrics for inflated structures. Composite Structures, Volume 171, …

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  • Technology for concrete shells fabrication reinforced by ...

    2016-3-3 · mechanics, Yarns loops are arranged in structures. In woven (that was elaborated earlier) was exploited predicting shell load bearing facility depending on the opening of a crack in the loaded shell. strands form loops see Figure 3. A knitted fabric is Concrete is a brittle material, if we want to fabricate

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  • Textile Composites And Inflatable Structures [PDF ...

    This book collects state-of-the-art research and technology for design, analysis, construction and maintenance of textile and inflatable structures. Textile composites and inflatable structures have become increasingly popular for a variety of applications in OCo among many other fieldsaOCo civil engineering, architecture and aerospace engineering.

    Get Price
  • DeepDyve - Unlimited Access to Peer-Reviewed Journals

    DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

    Get Price
  • NUWC-NPT Technical Report 12,141 15 August2013

    2013-12-24 · For use in air-inflated structures, the skins are made impermeable by laminating them with layers of an elastomeric material, such as rubber, polyvinyl chloride (PVC), urethane, and neoprene, on both sides to fully contain a volume of air with their edges seamed. The skins consist of (1) a base fabric that is plain-woven using two

    Get Price
  • Energy Absorbability of Large Scale Inflatable

    2007-12-14 · Mechanics of Plain-Woven Fabrics for Inflated Structures,” ... 2003, “Advances in Fabric and Structural Analyses of Pressure Inflated Structures”, Conference Proceedings of the 2003 ASME International Mechanical Engineering Congress and Exposition, IMECE 2003–55060. 4.

    Get Price
  • Ali Sadegh | The City College of New York

    2021-7-8 · Sadegh, A., and Cavallaro, P. ,'Nonlinear Constitutive Relationships of Plain-Woven Fabric For Inflatable Structures', Macro-to Nano-Scale Inelastic Behavior of Materials: Plasticity, Fatigue and Fracture, Edited by Akhtar Khan and Babak Farrokh, Proceedings of PLASTICITY '09, The 15th International Symposium on Plasticity and its Current ...

    Get Price
  • [PDF] Mechanics of Air-Inflated Drop-Stitch Fabric

    Abstract : Rapid deployability and mobility of lightweight structures, namely inflatable structures, are of growing significance to the military and space communities. When deployment and rigidity are driven by pressure (for example, air or fluid) and materials such as textiles, elastomers, and flexible composites are used for the structure, significant load-carrying capacity per unit weight ...

    Get Price
  • Decrimping Behavior of Uncoated Plain-woven Fabrics ...

    2018-2-22 · Presently, design methods for inflated fabric structures are not well established. Analysis tools for their efficient design lag behind those for conventional structures, partly because woven fabrics do not behave as a continuum. Changes in fabric architecture occur with loading and lead to several sources of nonlinear response.

    Get Price
  • APPROACHES IN MODELLING THE MECHANICAL

    2015-6-25 · Fig. 4 – The woven textile pattern of interlacing yarns: a – plain weave, b and c – twill weaves (adopted from Ivanov, 2009). 2. Modelling the Mechanical Characteristics of Woven Fabrics In the past decades, complex composite reinforcements such as textiles have become widely used in the industry, due to their inproved manufacturing

    Get Price
  • A multi-scale method for predicting ABD stiffness

    2021, Computational Mechanics. The influence of the layer arrangement on the distortional post-buckling behavior of open section beams. 2020, Materials. ... Effects of on-axis and off-axis tension on uniaxial mechanical properties of plain woven fabrics for inflated structures. Composite Structures, Volume 171, …

    Get Price
  • Technology for concrete shells fabrication reinforced by ...

    2016-3-3 · mechanics, Yarns loops are arranged in structures. In woven (that was elaborated earlier) was exploited predicting shell load bearing facility depending on the opening of a crack in the loaded shell. strands form loops see Figure 3. A knitted fabric is Concrete is a brittle material, if we want to fabricate

    Get Price
  • Textile Composites And Inflatable Structures [PDF ...

    This book collects state-of-the-art research and technology for design, analysis, construction and maintenance of textile and inflatable structures. Textile composites and inflatable structures have become increasingly popular for a variety of applications in OCo among many other fieldsaOCo civil engineering, architecture and aerospace engineering.

    Get Price
  • ‪Ali Sadegh‬ - ‪Google Scholar‬

    Mechanics of plain-woven fabrics for inflated structures. PV Cavallaro, ME Johnson, AM Sadegh. Composite structures 61 (4), 375-393, 2003. 63: 2003: City-climber: a new generation wall-climbing robots. J Xiao, A Sadegh. INTECH Open Access Publisher, 2007. 60: 2007:

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  • CiteSeerX — Citation Query Mechanics of elastic ...

    We demonstrate a physically-based technique for predicting the drape of a wide variety of woven fabrics. The approach exploits a theoretical model that explicitly represents the microstructure of woven cloth with interacting particles, rather than utilizing a continuum approximation.

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  • Effect of Fabric Structure and Weft Density on the Poisson ...

    2020-12-1 · idealized woven fabric and presented some critical data on the initial load-extension behavior of plain woven fabrics. A solution was suggested for the initial young's modulus and the Poisson's ratio. Nhan [12] established a model for fabric buckling. In his …

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  • Geometrical Modelling of 3D Woven Reinforcements for ...

    2017-7-11 · mechanical in-plane properties of composites were found to be higher for 3D woven reinforcements than for multi-layer plain weave reinforcement [2, 3]. For the case of frequently used 3D orthogonal woven reinforcements, the mechanical properties of composites have been addressed in detail in a variety of studies.

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  • Mechanical Behavior of Regular Twill Weave Structures ...

    2018-11-27 · [10]. In fact, woven fabrics with the weave other than plain will show some extent of skewness in their structure after they are taken-off from the loom and other finishing treatments. The reason for the occurrence of skewness and its effect on textile and apparel industries has been investigated in [11]. The

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  • Automated geometric modelling of textile structures

    2017-7-11 · fabrics for two-dimensional (2D) woven and weft-knitted fabrics based on an energy method using the yarn mechanical properties.9 The Weave Engineer software10 is dedicated to the design of three-dimensional (3D) woven textile structures, with both solid and hollow architectures and non-crimp composite reinforcements.

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  • Static Finite Element Validation of a Flexible Micro Air ...

    2007-1-23 · The flexible-wing approach has proven to be a successful method for designing micro air vehicles. The wing’s passive deformation under wind loads can allow for gust rejection, delayed stall, or improved longitudinal stability. As such, an accurate structural model of the flexible wing can provide greater understanding of the aforementioned phenomena. This paper seeks to formulate a static ...

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  • Fabric Structure Design | Fiberglass | Strength Of

    2017-4-2 · Computer Methods in Applied Mechanics and Engineering 1974: 115-134. Shaeffer, R.E. Tensioned Fabric Structures: A Practical Introduction. New York, NY: American Society of Civil Engineers, 1996. Testa, Rene B. and Yu, Lop Man. 'Stress-Strain Relation for Coated Fabrics.' Journal of Engineering Mechanics November 1987: 1631-1646.

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  • Impact Tensile Behaviors of PVDF Building Coated

    2020-10-30 · The paper presents the impact tensile behaviors of two common building membranes (Ferrari 1002T2 membrane and XYD 300N membrane) in PVDF-coated-fabric membrane structures. The tests are conducted using the split Hopkinson bar test device. Typical forms of stress and strain are applied for comparing the stress-strain relationship between quasi-static and high strain rates.

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  • Mechanical testing of textile composites |

    2019-7-8 · In-plane shear testing of woven textile composites can be performed with the commonly used ±45 tensile shear test, ASTM D35189, but only for woven fabrics or biaxial braids in which identical fiber tows are placed in the +45-degree and -45-degree orientations, producing the required ±45-degree balanced laminate.

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  • Measuring and modeling the anisotropic, nonlinear and ...

    2020-10-13 · woven fabrics. An important aspect of modeling the mechanics of woven fabrics is capturing realistic stress-strain behaviors which are invariably anisotropic, nonlinear, and hysteretic in that they feature irrecoverable deformation when loadings are removed from the fabric.

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  • Exploiting Textile Mechanical Anisotropy for Fabric-Based ...

    2018-7-23 · Knit, woven, and nonwoven fabrics offer a diverse range of stretch and strain limiting mechanical properties that can be leveraged to produce tailored, whole-body deformation mechanics of soft robotic systems. This work presents new insights and methods for combining heterogeneous fabric material layers to create soft fabric-based actuators.

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  • Automated geometric modelling of textile structures

    2017-7-11 · fabrics for two-dimensional (2D) woven and weft-knitted fabrics based on an energy method using the yarn mechanical properties.9 The Weave Engineer software10 is dedicated to the design of three-dimensional (3D) woven textile structures, with both solid and hollow architectures and non-crimp composite reinforcements.

    Get Price
  • The Rheology of Woven and Knitted Fabrics.*

    liferation of the actual variety of knitted and woven fabrics commercially available in recent years. The basic fabric structures which are formed when twisted yams are interlaced by the knitting or weaving process have become the focus of much theoretical ...

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  • Development of a Continuum Damage Mechanics

    2020-8-6 · mechanics material model based on the theory described in Reference 11 and is intended for use with shell elements to simulate composite tape laminates and woven fabrics. Reference 14 describes the implementation of Mat 58 within LS-DYNA®. The model requires input of material

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  • Jianhui Hu | Researcher | Organizing Committee |

    2021-7-1 · The Annual Symposium of the International Association for Shell and Spatial Structures, September 25-28, 2017, Hamburg, Germany. Hu P., Hu J., Chen W., Zhao B. Uniaxial tensile properties and visco-plastic constitutive model of ethylene tetrafluoroethylene foils [J].Journal of Shanghai Jiao Tong University, 2016 (11): 1700-1705.

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  • Ballistic impact resistance of plain woven

    2021-7-10 · Two types of woven fabrics were used: plain woven kenaf and Heracron® aramid fibres double-side coated with 12% PVB-phenolic. Table 1 shows the physical characteristics of plain woven kenaf (Salman et al. 2015e), supplied by ZKK Sdn Bhd, Malaysia. The PVB-phenolic is a vinyl polymer with an additional 5% phenolic.

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  • Isogeometric analysis for numerical plate testing of

    2019-1-1 · With a view to application to meso–macro decoupled two-scale draping simulations of dry woven fabrics, the method of isogeometric analysis (IGA) is applied to the numerical plate testing (NPT) for their periodic unit structures involving frictional contact at meso-scale. The meso-structure having periodicity only in in-plane directions is identified with a representative volume element to ...

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  • Fabric Structure Design | Fiberglass | Strength Of

    2017-4-2 · The Design and Construction of Fabric Structures. by Rosemarie Fang B.S. Civil and Environmental Engineering Cornell University, 2008 SUBMITTED TO THE DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING INPARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF ENGINEERING INCIVIL AND ENVIRONMENTAL ENGINEERING …

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  • Collections: That Dothraki Horde, Part II: Subsistence

    2020-12-11 · This is the second part of a four part (I, III, IV) look at the Dothraki, the fictional horse-borne nomads of the A Song of Ice and Fire Game of Thrones series.We’re looking at, in particular, the degree to which George R.R. Martin’s claim that the Dothraki are “an amalgam of a number of steppe and plains cultures” holds up in the face of research.

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