Experimental Study on Single Corner Cold Bending Mechanical Response of Laminated of PVB Interlayer Tempered Glass Panes and the Coupling Effect with Load

The cold bending method is a type of curved glass curtain wall construction method that has been used in practical engineering for a short time. It has the advantages of simple operation, high efficiency and low cost. However, the mechanical response and properties of glass panes caused by cold bending have not been solved effectively. To study the mechanical response and the properties of cold formed laminated tempered glass panes after applying with a wind load, cold bending and load tests of 9 laminated tempered glass panes were conducted by the orthogonal experimental design method. The effects of cold bending curvature, glass pane thickness and interlayer thickness were considered. In this paper, the response law of cold bending stress to the curvature and the relationship among the influencing factors were analyzed. The variation process of stress, the deflection of cold-formed glass panes under uniform load and the characteristics affected by cold-formed stress and deformation were studied. The results show that the cold bending stress is distributed in a saddle shape, and the curvature has the greatest influence on the cold bending stress, followed by the thickness of the glass panes. The influence of the interlayer thickness is small. The maximum stress appears near the corner of the short side direction adjacent to the cold bending corner. The cold bending stress increases linearly with increasing cold bending curvature. The cold bending stress and deformation have little effect on the change process of the later stage load effect.

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An Experimental Study on Cold-Bending Stress and Its Reverse-Coupling Effect with the Uniform Load on Cold-Bent SGP Laminated Glass

Applied Sciences ◽

10.3390/app112110073 ◽

2021 ◽

Vol 11 (21) ◽

pp. 10073

Author(s):

Xide Zhang ◽

Chengyi Zou ◽

Xiaoqi Yin

Keyword(s):

Coupling Effect ◽

Economic Benefits ◽

Laminated Glass ◽

Bending Stress ◽

Ultimate Capacity ◽

Interlayer Thickness ◽

Uniform Load ◽

Short Side ◽

Cold Bending ◽

Glass Panels

SentryGlas® Plus (SGP) laminated glass is a novel type of safety glass with high strength and stiffness. On the other hand, cold bending is a novel technique to build curved glass curtain walls, and is advantageous in terms of its greater energy efficiency and cost-effectiveness as well as its simple construction processes. The cold bending of SGP laminated glass could result in broad applications for the material and provide huge economic benefits in the field of glass curtain wall construction. To study cold-bending stress and its reverse-coupling effect with the uniform load in SGP laminated glass panels, single-corner cold-bending tests, uniform load tests, and ultimate capacity tests were conducted on eight pieces of such panels with different cold-bending curvatures and interlayer thicknesses. The results revealed that cold-bending stress in the glass panels under single-corner cold bending demonstrated a saddle-shaped distribution, with the maximum and second-largest cold-bending stresses located near the corner of the short side and the long side adjacent to the cold-bending corner, respectively. The cold-bending stress and coupling stress increased nonlinearly as the cold-bending curvature rose and the interlayer thickness became greater. Moreover, cold-bending curvature was a factor that affected the cold-bending stress and coupling stress more significantly than the interlayer thickness. The ultimate capacity and ultimate deflection of the glass panels decreased as the cold-bending curvature and interlayer thickness grew.

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The role of geomechanical modeling in the measurement and understanding of geophysical data collected during carbon sequestration

The Leading Edge ◽

10.1190/tle40060413.1 ◽

2021 ◽

Vol 40 (6) ◽

pp. 413-417

Author(s):

Chunfang Meng ◽

Michael Fehler

Keyword(s):

Pore Pressure ◽

Fault Location ◽

Mechanical Response ◽

Fluid Pressure ◽

Geophysical Data ◽

Fluid Injection ◽

Coupled Flow ◽

Cap Rock ◽

Stress And Deformation ◽

Pressure Changes

As fluids are injected into a reservoir, the pore fluid pressure changes in space and time. These changes induce a mechanical response to the reservoir fractures, which in turn induces changes in stress and deformation to the surrounding rock. The changes in stress and associated deformation comprise the geomechanical response of the reservoir to the injection. This response can result in slip along faults and potentially the loss of fluid containment within a reservoir as a result of cap-rock failure. It is important to recognize that the slip along faults does not occur only due to the changes in pore pressure at the fault location; it can also be a response to poroelastic changes in stress located away from the region where pore pressure itself changes. Our goal here is to briefly describe some of the concepts of geomechanics and the coupled flow-geomechanical response of the reservoir to fluid injection. We will illustrate some of the concepts with modeling examples that help build our intuition for understanding and predicting possible responses of reservoirs to injection. It is essential to understand and apply these concepts to properly use geomechanical modeling to design geophysical acquisition geometries and to properly interpret the geophysical data acquired during fluid injection.

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On fibre dispersion modelling of soft biological tissues: a review

Proceedings of The Royal Society A Mathematical Physical and Engineering Sciences ◽

10.1098/rspa.2018.0736 ◽

2019 ◽

Vol 475 (2224) ◽

pp. 20180736 ◽

Cited By ~ 10

Author(s):

Gerhard A. Holzapfel ◽

Ray W. Ogden ◽

Selda Sherifova

Keyword(s):

Heart Valves ◽

Mechanical Response ◽

Structural Information ◽

Second Harmonic ◽

Biological Tissues ◽

Mechanical Tests ◽

Soft Biological Tissues ◽

Tensor Models ◽

Continuum Modelling ◽

Stress And Deformation

Collagen fibres within fibrous soft biological tissues such as artery walls, cartilage, myocardiums, corneas and heart valves are responsible for their anisotropic mechanical behaviour. It has recently been recognized that the dispersed orientation of these fibres has a significant effect on the mechanical response of the tissues. Modelling of the dispersed structure is important for the prediction of the stress and deformation characteristics in (patho)physiological tissues under various loading conditions. This paper provides a timely and critical review of the continuum modelling of fibre dispersion, specifically, the angular integration and the generalized structure tensor models. The models are used in representative numerical examples to fit sets of experimental data that have been obtained from mechanical tests and fibre structural information from second-harmonic imaging. In particular, patches of healthy and diseased aortic tissues are investigated, and it is shown that the predictions of the models fit very well with the data. It is straightforward to use the models described herein within a finite-element framework, which will enable more realistic (and clinically relevant) boundary-value problems to be solved. This also provides a basis for further developments of material models and points to the need for additional mechanical and microstructural data that can inform further advances in the material modelling.

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Study on the Mechanical Behavior of Long-Span Steel Truss Transfer Storey

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.838-841.219 ◽

2013 ◽

Vol 838-841 ◽

pp. 219-226

Author(s):

Ming Wei He

Keyword(s):

Mechanical Behavior ◽

Concrete Beam ◽

Deformation Analysis ◽

Steel Girder ◽

Load Effect ◽

Long Span ◽

Steel Material ◽

Staged Construction ◽

Steel Truss ◽

Stress And Deformation

The analysis to the staged construction of the long span steel transfer truss was performed. The focus was on the stress and deformation analysis of the transfer truss, the interactions of the transfer member with the concrete tube, and the combination analysis of the steel girder and concrete beam. It was proved that the method of staged construction can get the good result that can make full use of the characteristic of the steel material, make steel truss bear more load effect in the construction stage. So the load to the concrete tube is lessened, which makes the load effect of the structure is more rational. Some advices for the construction and design of steel transfer truss is also provided. Keywords:Steel truss; Transfer story; Staged Construction.

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Uniform Loading Analysis for Pin-Hole-Output Mechanism of FA Cycloid Drive

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.479-481.925 ◽

2012 ◽

Vol 479-481 ◽

pp. 925-931

Author(s):

Lei Lei ◽

Ying Tao ◽

Tian Min Guan

Keyword(s):

Carrying Capacity ◽

Bending Strength ◽

Deformation Analysis ◽

Load Carrying Capacity ◽

Bending Stress ◽

Uniform Loading ◽

Force Loading ◽

Load Carrying ◽

Stress And Deformation ◽

Loading Analysis

In order to balance the force loading on the dowel pin , improve the load carrying capacity on pin-hole type output mechanism the FA cycloid drive, we considered to add uniform loading ring on the cantilever end of the pins in this paper. Under the action of uniform loading ring, we did the stress and deformation analysis on the dowel pin; Through the examples comparison we found that, the maximum bending stress of the dowel pin is reduced by 77.86% after adding the uniform loading ring, the dowel pin stress is well-distributed, and the bending strength of output mechanism is improved, thus the load carrying capacity of overall unit is improved.

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The Vertical Axis Wind Power Controller Design

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.816-817.989 ◽

2013 ◽

Vol 816-817 ◽

pp. 989-992

Author(s):

Xue Feng Bai ◽

Pei Li ◽

Hong Li ◽

Xiao Na Song ◽

Cheng Wei Wang

Keyword(s):

Renewable Energy ◽

Wind Power ◽

High Efficiency ◽

Controller Design ◽

Dynamic Performance ◽

Social Economy ◽

Vertical Axis ◽

Load Effect ◽

Power Controller ◽

Battery Energy

The use of renewable energy plays an important role in the sustainable development of our social economy and environmental protection. Wind power is now one of the fastest growing forms of renewable energy. these can be steady and predictable, providing a clean, safe and potentially limitless source of power. Now, Small wind turbines use the battery energy storage. Due to the randomness of the wind power and wind speed change range is larger, it is difficult to charge a battery. In this paper ,we will introduce a set of small vertical axis wind power controller system designed that is small size, light weight, high efficiency and energy saving, good load effect , good dynamic performance, reliable work and stable output .bridge rectifier circuit, MCU and its peripheral circuit, AD conversion circuit and serial communication circuit are put into use. charging control and discharge protection are controlled by microcontroller.

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ELASTIC DAMPER BASED ON THE CARBON NANOTUBE BUNDLE

Facta Universitatis Series Mechanical Engineering ◽

10.22190/fume200128011r ◽

2020 ◽

Vol 18 (1) ◽

pp. 001 ◽

Cited By ~ 2

Author(s):

Leysan Kh. Rysaeva ◽

Elena A. Korznikova ◽

Ramil T. Murzaev ◽

Dina U. Abdullina ◽

Aleksey A. Kudreyko ◽

...

Keyword(s):

Phase Transition ◽

Carbon Nanotube ◽

Order Phase Transition ◽

Degrees Of Freedom ◽

High Efficiency ◽

Mechanical Response ◽

Compressive Strain ◽

Period Doubling ◽

Chain Model ◽

Nanotube Bundle

Mechanical response of the carbon nanotube bundle to uniaxial and biaxial lateral compression followed by unloading is modeled under plane strain conditions. The chain model with a reduced number of degrees of freedom is employed with high efficiency. During loading, two critical values of strain are detected. Firstly, period doubling is observed as a result of the second order phase transition, and at higher compressive strain, the first order phase transition takes place when carbon nanotubes start to collapse. The loading-unloading stress-strain curves exhibit a hysteresis loop and, upon unloading, the structure returns to its initial form with no residual strain. This behavior of the nanotube bundle can be employed for the design of an elastic damper.

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The Effects of Strain Rate and Thickness on the Response of Thin Layers of Solder Loaded in Pure Shear

Journal of Electronic Packaging ◽

10.1115/1.2792223 ◽

1997 ◽

Vol 119 (2) ◽

pp. 81-84 ◽

Cited By ~ 9

Author(s):

A. Gilat ◽

K. Krishna

Keyword(s):

Plastic Deformation ◽

Shear Stress ◽

Strain Rate ◽

Mechanical Response ◽

Pure Shear ◽

Strain Curve ◽

Thin Layers ◽

Stress Strain Curve ◽

Stress Strain ◽

Stress And Deformation

A new configuration for testing thin layers of solder is introduced and employed to study the effects of strain rate and thickness on the mechanical response of eutectic Sn-Pb solder. The solder in the test is loaded under a well defined state of pure shear stress. The stress and deformation in the solder are measured very accurately to produce a reliable stress-strain curve. The results show that both the stress needed for plastic deformation and ductility increase with increasing strain rate.

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Research Status and Development Trend of Steel-Bamboo Composite Structure

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.893.716 ◽

2014 ◽

Vol 893 ◽

pp. 716-719

Author(s):

Yu Wen ◽

Ke Ke Xu ◽

Jing Tang ◽

Yu Shun Li

Keyword(s):

Composite Structure ◽

High Efficiency ◽

Steel Structure ◽

High Strength ◽

Development Trend ◽

Thin Wall ◽

Light Weight ◽

Building Structure ◽

Structure System ◽

Cold Bending

Steel structure system is the combination of specific fitting composites which are bamboo veneer and cold bending thin-wall steel, it is a high efficiency and energy-saving building structure system. It contains the advantages of both steel and bamboo, giving full play to the advantages of light weight, high strength, seismic.

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