A solution considering partial degree of composite action for insulated sandwich panels with general configuration flexible shear connectors

Yossef, Mostafa; Chen, An

doi:10.1016/j.engstruct.2018.02.019

Cited by 22 publications

(4 citation statements)

References 24 publications

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“…PUFs are also characterized as traditional core materials for sandwich structures, which usually consist of upper and lower face sheets that are bonded together with a core material. These sandwich structures are used for numerous applications in the aerospace, marine, automotive, insulated sandwich panel, shipbuilding and construction industries and the blades of ocean current turbines . In recent years, researchers have reinforced polyurethanes (PUs) with different reinforcing agents such as nanofillers and have successfully improved the properties of the resulting PU nanocomposites .…”

Section: Introductionmentioning

confidence: 99%

A review on recent advances in sandwich structures based on polyurethane foam cores

et al. 2020

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Sandwich composites with a polyurethane foam (PUF) core have become a versatile set of materials with applications ranging from basic construction elements to advanced engineering materials. This diverse range of applications has provided these sandwich materials with a distinctive position in today's engineering world. This review focuses on the broad research that has been carried out on PUF core‐based sandwich composites over the years—especially in the last decade. Thorough details have been presented focusing on basic PUF core sandwich structures, advanced PUF core sandwich composites with different kinds of reinforcements and complex structures such as hybrid sandwich panels. All the research presented here has been categorized carefully, such as the types of materials used in various studies, the types of reinforcements and testing techniques used, including mechanical, electrical, dynamic, thermal and acoustic methods etc. Comparisons have also been made based on similar materials, similar testing procedures and similar application areas. Research areas have been highlighted by giving a deep insight into the most promising research, manufacturing techniques and improvement procedures. Major consumption areas and application sectors for PUF core sandwich composites have also been discussed in this review. Finally, conclusions have been made based on the results found from a literature investigation.

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Section: Introductionmentioning

confidence: 99%

A review on recent advances in sandwich structures based on polyurethane foam cores

et al. 2020

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“…Sandwich composites are used not only in electrode materials but also in aerospace, industrial construction, and bioscience. [82][83][84][85] In silicon-based negative electrode materials, the inner core of the sandwich structure is chosen as the silicon-based negative electrode material, the core material is selected as a material with high conductivity to cover the inner core, and the outer surface material is encapsulated with a material with high mechanical strength such as flexible graphene to alleviate the volume change of the siliconbased material, prevent the electrode from breaking, and further improve the electrical conductivity.…”

Section: Sandwich Structurementioning

confidence: 99%

Structural Control and Optimization Schemes of Silicon‐Based Anode Materials

Zhu

Zeng

et al. 2023

Energy Tech

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Rechargeable lithium‐ion batteries (LIBs) are today's best performing and most promising energy storage devices. Silicon‐based anode materials with ultrahigh specific capacity are expected to help LIBs play a more significant role in practical applications. However, the irreversible volume expansion of silicon during charge and discharge, which makes the material devastatingly shattered, and the unstable solid electrolyte intermediate film have greatly affected the LIB cycle stability and slowed the commercialization of silicon‐based anode LIBs. In recent years, various approaches have been tried to reduce the adverse effects of bulk effects, and nanosizing is a widely recognized and practical approach. Still, it has also reached a bottleneck in development. This work provides a comprehensive review of the recent progress in improving the electrochemical performance of silicon‐based anode LIBs. The development of mainstream silicon‐based compounds is described, the role of various structural control means for the improvement of silicon‐based anodes is elaborated, as well as other optimization schemes, and a view on the future development of silicon‐based anodes is presented.

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“…17. Effective flange width for the transmission of the normal stresses in concrete sandwich panels with punctual shear connectors (headed steel studs): the area of the stress block with constant stress along the reduced width eff b is equal to the area subtended to the diagram of the actual stress distributed along the width b [Yossef and Chen (2018)].…”

Section: A Brief Note On the Degree Of Composite Action (Dca) Establimentioning

confidence: 99%

Recent Advances in the Straps/Strips Technique for Out-of-plane Strengthening of Load-bearing Masonry Walls

Ferretti

2019

Preprint

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As is well known, the main contribution of the FRP strips to the strength of load-bearing walls is an improvement in the in-plane strength. This paper deals with the possibility of applying the FRP strips in way to modify the strengthening mechanism of the FRP reinforcing system, from an in-plane to an out-of-plane strengthening mechanism. In order to achieve this goal, a second reinforcement system – derived from the CAM system (Active Confinement of Masonry) – provides connections between the FRP strips placed on the opposite sides of the wall. This new strengthening technique – called the straps/strips technique – establishes a stiffness constraint that forces the opposing FRP strips to behave like two flanges of an FRP I-beam embedded in the wall. Consequently, the use of FRP strips also improves the flexural strength of the wall. The present paper briefly summarizes the results obtained in previous works with the straps/strips technique and proposes an improvement of this strengthening technique, based on some weak-points emerged in the early experimentations. The paper also shows the results of a further experimental test, performed with the improved straps/strips technique. Finally, the similarity between FRP strips with transversal connection and concrete wythes of a sandwich panel with flexible connectors leads to interpret the behavior of the ideal I-beam in terms of composite action established between the FRP strips. This paves the way for analytical modeling of the straps/strips technique.

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A solution considering partial degree of composite action for insulated sandwich panels with general configuration flexible shear connectors

Cited by 22 publications

References 24 publications

A review on recent advances in sandwich structures based on polyurethane foam cores

A review on recent advances in sandwich structures based on polyurethane foam cores

Structural Control and Optimization Schemes of Silicon‐Based Anode Materials

Recent Advances in the Straps/Strips Technique for Out-of-plane Strengthening of Load-bearing Masonry Walls

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