Additive manufacturing meta-functional composites for engineered bridge bearings: A review

Sengsri, Pasakorn; Kaewunruen, Sakdirat

doi:10.1016/j.conbuildmat.2020.120535

Cited by 21 publications

(14 citation statements)

References 184 publications

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“…It is clearly seen that the density also plays a role in structural stability as the structure easily exhibits the hardening state when the density is increased. These nonlinear phenomena are similar to the dynamic behaviours of highly slender structures [19][20][21]. However, it is noted that the cross over phenomenon is not observed.…”

Section: Effects Of Elastic Modulus and Densitysupporting

confidence: 65%

Large-Amplitude Vibrations of Spider Web Structures

Kaewunruen

Ngamkhanong

Yang³

2020

Applied Sciences

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Spider silk, as a natural material, shows exceptional performance in its properties. The combination of the superior properties of spider silk and the geometry of spider structures make the spider web very resilient. A spider web structure can be considered as a cable-like structure with inappreciable torsional, bending and shear rigidities. An investigation emphasising on natural frequencies and corresponding mode shapes with and without the consideration of geometric nonlinearity is presented in this paper. This study is the world’s first discovery of large amplitude free vibration behaviours of spider web structures. Large deformable finite element 3D models of spider web structures have been developed and validated. By using the energy method, the variational model of the spider web structures have been established to further extend the finite element model, consisting of the strain energy due to axial deformation, kinetic energy due to the spider web movement and the virtual work caused by the self-weight per unit unstretched length. The emphasis of this study is placed on the linear and geometric nonlinear behaviour of the spider web structures considering different structural patterns and material properties. To determine the large-amplitude free vibrational behaviours, a series of pretension load is applied to the first step in Abaqus to initiate the nonlinear strain-displacement relationships enabling a precursor to free vibrations. The parametric studies stemming from structural patterns (the number of radial and capture threads), elastic modulus, density, and inertia moment have been highlighted. The insight will help engineers and scientists to adapt the concept of spider webs, their geometric properties, and damage patterns for the design of any structural membranes, preventing any failure from dynamic resonances and nonlinear phenomena.

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Section: Effects Of Elastic Modulus and Densitysupporting

confidence: 65%

Large-Amplitude Vibrations of Spider Web Structures

Kaewunruen

Ngamkhanong

Yang³

2020

Applied Sciences

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“…The authors analyzed and evaluated the impact of axle load distribution through the evaluation of track ballast specially allocated along the bridge structure. Meanwhile, the authors of Sengsri and Kaewunruen [ 307 ] reviewed the publications connected to bridge bearings as among the most common causes of bridge failure. The review was connected to the use of sensors and other such devices.…”

Section: Systematic Literature Reviewmentioning

confidence: 99%

Condition Monitoring of Rail Transport Systems: A Bibliometric Performance Analysis and Systematic Literature Review

Kostrzewski

Melnik

2021

Sensors

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Condition monitoring of rail transport systems has become a phenomenon of global interest over the past half a century. The approaches to condition monitoring of various rail transport systems—especially in the context of rail vehicle subsystem and track subsystem monitoring—have been evolving, and have become equally significant and challenging. The evolution of the approaches applied to rail systems’ condition monitoring has followed manual maintenance, through methods connected to the application of sensors, up to the currently discussed methods and techniques focused on the mutual use of automation, data processing, and exchange. The aim of this paper is to provide an essential overview of the academic research on the condition monitoring of rail transport systems. This paper reviews existing literature in order to present an up-to-date, content-based analysis based on a coupled methodology consisting of bibliometric performance analysis and systematic literature review. This combination of literature review approaches allows the authors to focus on the identification of the most influential contributors to the advances in research in the analyzed area of interest, and the most influential and prominent researchers, journals, and papers. These findings have led the authors to specify research trends related to the analyzed area, and additionally identify future research agendas in the investigation from engineering perspectives.

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“…In our previous work [10], we reviewed numerous recent studies on the development of elastomeric bridge bearings using fibre reinforcement (fibre-reinforced rubber bearings, FRRBs), which exhibit improved mechanical properties [11][12][13][14][15][16][17][18][19][20][21][22]. In contrast to LRBs, the fibre reinforcement used in FRRBs offers such benefits as light weight, lower stresses in bearings, and simple installation [10]. Nevertheless, the materials used in these bearings, whether reinforced by steel or fibre, can be better designed in order to obtain specific properties under expected loading conditions using metamaterials which cannot be found in nature [23,24].…”

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Local Failure Modes and Critical Buckling Loads of a Meta-Functional Auxetic Sandwich Core for Composite Bridge Bearing Applications

Sengsri

Kaewunruen

2021

Applied Sciences

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This paper presents a novel meta-functional auxetic unit (MFAU) cell designed to improve performance and weight ratio for structural bridge bearing applications. Numerical investigations were conducted using three-dimensional finite element models validated by experimental results. The validated models were exposed to compression and buckling actions to identify structural failure modes, with special attention placed on the global behaviours of the meta-functional auxetic (MFA) composite bridge bearing. This bearing uses an unprecedented auxetic sandwich core design consisting of multiple MFAU cells. Numerical predictions of the elastic local critical buckling loads of the MFAU cell were in excellent agreement with both the analytical and experimental results, with an observed discrepancy of less than 1%. These results demonstrate that local buckling failures of MFAU cells can potentially be incurred prior to yielding under compression due to their slenderness ratios. Surprisingly, the designed sandwich core used in the MFA composite bridge bearing model can mimic an auxetic structure with significant crashworthiness, implying that this novel core composite structure can be tailored for structural bridge bearing applications. Parametric studies were thus carried out in order to enrich our insight into the MFA composite elements. These insights, stemming from both experimental and numerical studies, enable a novel design paradigm for MFAU that can significantly enhance the structural performance of MFA composite bridge bearings in practice.

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Additive manufacturing meta-functional composites for engineered bridge bearings: A review

Cited by 21 publications

References 184 publications

Large-Amplitude Vibrations of Spider Web Structures

Large-Amplitude Vibrations of Spider Web Structures

Condition Monitoring of Rail Transport Systems: A Bibliometric Performance Analysis and Systematic Literature Review

Local Failure Modes and Critical Buckling Loads of a Meta-Functional Auxetic Sandwich Core for Composite Bridge Bearing Applications

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