In-plane shear compression behaviour of steel-glass composite beams with laminated glass webs

2017 ◽  
Vol 150 ◽  
pp. 892-904 ◽  
Author(s):  
Zhi-Yu Wang ◽  
Yalong Shi ◽  
Qing-Yuan Wang ◽  
Yaoyong Wu ◽  
Mingde He
Keyword(s):  
Composite Beams ◽  
Laminated Glass ◽  
Glass Composite ◽  
Plane Shear ◽  
Compression Behaviour

Material characterization for laminated glass composite panel

2017 ◽  
Vol 1 (81) ◽  
pp. 11-17 ◽  
Author(s):  
K. Väer ◽  
J. Anton ◽  
A. Klauson ◽  
M. Eerme ◽  
E. Õunapuu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wave Propagation ◽  
Residual Stresses ◽  
Material Properties ◽  
Composite Panel ◽  
Laminated Glass ◽  
Glass Composite ◽  
Private Company ◽  
Viscoelastic Interlayer ◽  
Non Destructive

Purpose: Laminated glass composite panel (LGCP) with at least one flexible plastic/ viscoelastic interlayer is considered. The purpose of this paper is to determine the material properties of the constituents of LGCP required for accurate modelling of the laminated glass structures. Design/methodology/approach: The proposed approach includes the following three type of tests: non-destructive tests for determining mechanical properties of the glass layers (based on wave propagation), mechanical tests and finite element simulations for determining properties of the interlayers, measuring residual stresses in glass layers using novel methods and equipment (non-destructive, wave propagation based). Findings: Methodology and procedures for determining material properties of the LGCP. Research limitations/implications: Due to fact that the shear moduli of the viscoelastic interlayers and glass skin layers differs up to thousands times, the direct application of the classical sandwich theory may lead to inaccurate results. The layer wise plate theory with viscoelastic interlayer should be applied. In the case of layer wise theory, the material properties should be determined for each layer (not averaged properties for laminate only). Practical implications: The proposed approach allows to determine the properties of the LGCP components with high accuracy and form base for development of accurate plate model for modelling vibration, buckling and bending of the LGCP. The effect of the residual stresses is most commonly omitted in engineering applications. However, in the case of tempered glass the residual stresses are significant and have obviously impact on stress- strain behaviour of the laminated glass panel. Originality/value: Study consists of valuable parts, i.e. determining residual stresses in glass performed in cooperation with private company GlasStress Ltd. Special software and measuring equipment are developed. Further LGCP interlayer mechanical properties are tested experimentally and using simulation tools for design optimization purposes.

Effect of Interleaved Electrospun Nanofiber on Flexural Properties of Fiber Glass Composites

2010 ◽  
Author(s):  
Sachin Shendokar ◽  
Ajit Kelkar ◽  
Ram Mohan ◽  
Ronnie Bolick
Keyword(s):  
Composite Beam ◽  
Electrospun Nanofibers ◽  
Composite Beams ◽  
Electrospinning Process ◽  
Temperature Cycle ◽  
Flexural Properties ◽  
Fiber Morphology ◽  
Glass Composite ◽  
Fiber Glass ◽  
Interface Layers

Electrospinning is regarded as one of the most efficient processes to generate one-dimensional nano structures. The electrospinning process is simple and provides consistent mass production of nanofibers. The scalability of the electrospinning process has an excellent potential to fulfill the high volume requirements of nanofibers in the infrastructure applications. The present work emphasizes the use of interleaved electrospun nanofibers in fiber glass composite beams. The Flexural behavior of a simply supported beam under a centrally concentrated loading is studied. Flexural properties of a fiber glass composite beam with interleaved electrospun nanofibers are compared with a fiber glass composite beam without electrospun nanofibers. The material configuration of the composite beams is: woven E-glass fabric prepregs with a low temperature molding resin. In addition, interleaved between the plies are TEOS (Tetra Ethyl Orthosilicate) electrospun nanofibers. The nanofibers were produced by developing optimized operating process parameters and a stabilized sintering temperature cycle to ensure consistency in the fiber morphology and pore structure. The successful integration of the electrospun nanofibers within the prepreg layers was obtained by pre-impregnation with a B-staged resin film and de-bulking to remove excessive resin prior to vacuum bagging. A series of mechanical Flexure tests were performed per the ASTM D7264 standard specification. Micrographs were obtained to study the progressive deformation and damage mechanics due to flexural loading in the specimens and clearly illustrate the differences in the failure mechanism with and without the electrospun interface layers.

Comparative Study on Structural Performance of Different Laminated Glass Composites and Brick Wall

2016 ◽  
Vol 857 ◽  
pp. 231-236
Author(s):  
Vipitha Varghese ◽  
Dony Poulose ◽  
Binu M. Issac
Keyword(s):  
Comparative Study ◽  
Structural Performance ◽  
Laminated Glass ◽  
Brick Wall ◽  
Structural Glass ◽  
Glass Composite ◽  
Glass Composites ◽  
Structural Adhesives ◽  
Architectural Engineering ◽  
Laminated Panels

Laminated glass composites are structural glass members made by assembling thin laminated panels which are connected by structural adhesives called interlayer. Laminated glass composite is a safety and security glass which enables significant improvement in the post-breakage behaviour. The interlayer of laminated glass composites ensures the integrity of the glass by holding it together. In the field of modern and innovative architectural engineering, the applications of laminated glass composites are increasing due to its lighting, aesthetics and architectural advantages. This paper introduces the buckling and vibration characteristics of different laminated glass elements using ANSYS 16.2.

scholarly journals Buckling of laminated glass plates using the effective thickness concept

2020 ◽  
pp. 109963622092700 ◽  
Author(s):  
Manuel Aenlle-López ◽  
Fernandez Pelayo ◽  
Miguel M Calvente ◽  
Maria J Lamela-Rey
Keyword(s):  
Material Properties ◽  
Viscoelastic Behavior ◽  
Thin Plates ◽  
Laminated Glass ◽  
The Finite Element Method ◽  
Temperature Dependent ◽  
Plane Shear ◽  
Linear Elastic ◽  
Glass Panels ◽  
Glass Plates

The critical buckling loads of laminated glass panels are time and temperature dependent because the mechanical behavior of these elements is governed by the material properties of the interlayers, which exhibit a viscoelastic behavior. Although structural stability is one of the design requirements in laminated glass panels, the literature about buckling of these elements is sparse. The finite element method can be used to calculate the response of laminated glass plates, but the classical eigenvalue buckling analysis implemented in these programs does not consider the time and temperature dependency of the interlayers. In this paper, a simplified analytical method to calculate the buckling critical load of rectangular laminated glass plates is presented, where the equations corresponding to linear-elastic monolithic thin plates are modified with an effective stiffness [Formula: see text] dependent on the geometry, material properties, and boundary conditions of the plate. The analytical equations are validated by numerical simulations on simply-supported laminated glass plates subject to uniaxial, biaxial, and in-plane shear, the maximum discrepancies being less than 10% for all the cases studied in the paper.

scholarly journals Flexural Behaviour of Timber Glass Composite Beams using Various Adhesives

2019 ◽  
Vol 8 (4S2) ◽  
pp. 134-139
Keyword(s):  
Energy Efficient ◽  
Composite Beams ◽  
Epoxy Adhesive ◽  
Clear Understanding ◽  
Glass Composite ◽  
Flexural Behaviour ◽  
Pass Through ◽  
Structural Connection ◽  
Acrylic Epoxy ◽  
Clear Idea

This paper mainly deals with providing a clear understanding of the bonding nature of various adhesives as a structural connection in timber glass composite beams and investigates the flexural behaviour of the same. This paper depicts the clear idea of the critical factors to be considered for the application of adhesives as a structural connection in timber glass composite beams. The timber glass composite beams will be a significant alternative for the conventional beams, which are currently used in the beams in temporary structures. Apart from being a significant replacement for the conventional beams, the glass web portion permits the light to pass through it. Thus, the artificial light energy required inside the structure will be reduced. This makes the composite beams to be energy efficient structural component in the temporary structures. In this research, the flexural behaviour of the composite beams made using various adhesives such as Acrylic, Epoxy and Silicone were studied. The result shows that epoxy adhesive connection behaves much better when compared with silicone and acrylic adhesives.

scholarly journals Numerical Investigation of Structural Behaviour of Timber-Glass Composite Beams

2016 ◽  
Vol 161 ◽  
pp. 990-1000 ◽  
Author(s):  
Marcin Kozłowski ◽  
Marta Kadela ◽  
Jacek Hulimka
Keyword(s):  
Numerical Investigation ◽  
Composite Beams ◽  
Glass Composite ◽  
Structural Behaviour
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