Advanced Mechanics of Materials - 3rd edition

Boresi, Arthur P.; Sidebottom, O. M.; Seely, Fred B.; Smith, J. O.; Saunders, H.

doi:10.1115/1.3254798

Cited by 65 publications

(85 citation statements)

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“…Increased yarn diameter would also increase ion diffusion distances 23 , even if yarn pore structure is unaffected. Additionally, Hertzian contact pressure theory for cylindrical yarns held in parallel or in contact with metal wires of constant diameter, predicts lower contact pressure for large diameter yarns for the same contact force conditions 34 . Decreased contact pressure can generate increased contact resistance, thereby resulting in an increase of the ESR.…”

Section: Discussionmentioning

confidence: 99%

Ultrafast charge and discharge biscrolled yarn supercapacitors for textiles and microdevices

et al. 2013

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Flexible, wearable, implantable and easily reconfigurable supercapacitors delivering high energy and power densities are needed for electronic devices. Here we demonstrate weavable, sewable, knottable and braidable yarns that function as high performance electrodes of redox supercapacitors. A novel technology, gradient biscrolling, provides fastion-transport yarn in which hundreds of layers of conducting-polymer-infiltrated carbon nanotube sheet are scrolled into B20 mm diameter yarn. Plying the biscrolled yarn with a metal wire current collector increases power generation capabilities. The volumetric capacitance is high (up to B179 F cm À 3 ) and the discharge current of the plied yarn supercapacitor linearly increases with voltage scan rate up to B80 Vs À 1 and B20 Vs À 1 for liquid and solid electrolytes, respectively. The exceptionally high energy and power densities for the complete supercapacitor, and high cycle life that little depends on winding or sewing (92%, 99% after 10,000 cycles, respectively) are important for the applications in electronic textiles.

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Section: Discussionmentioning

confidence: 99%

Ultrafast charge and discharge biscrolled yarn supercapacitors for textiles and microdevices

et al. 2013

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“…This assumption is justified in the fact that for both aluminum and SiO2, their Young's modulus is almost the same (Table 3.2.1.1). If it is assumed that the beams are straight, from strength of materials the deflection produced by a force at the free end of a cantilever beam, see Boresi [30] and . From the point of view of manufacturing, length of the beams is not a constraint, and the larger beams, the higher motion out of the plane, but at the same time to avoid that deflections increase dramatically, the thickness must increase.…”

Section: Deflection and Length Of The Beamsmentioning

confidence: 99%

University Research Program in Robotics - "Technologies for Micro-Electrical-Mechanical Systems in directed Stockpile Work (DSW) Radiation and Campaigns", Final Technical Annual Report, Project Period 9/1/06 - 8/31/07

Tulenko¹,

Crane²

2007

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The objective for the FY06/07 fiscal year is the development of nano-scale radioisotope powered battery models and supporting radiation testing of components. Task & AccomplishmentsThis task focuses on the concepts of conversion technologies for radioisotope battery designs and the further investigation of radiation resilience levels of candidate materials identified during FY06 and FY07 for fluorescence or 'direct' generation of free current electrons in transducers. Physical testing of key energy conversion parameters were initiated and carried out in order to augment MCNP and the EGS transport code programs and provide the realistic insights to improvements in design of nano-scale radioisotope battery design. In FY07 such advances in design are being computationally pretested via MCNP and EGS and with semi-analytical formulations (when appropriate).The UF development and design team continues the development of a nano-scale radioisotope battery designs and design schemes that have the potential to provide sufficient power for MEMS devices under development in cutting edge laboratories in the US. Studies of fundamental mechanisms and simulation studies of stacked tandem cells optimized for indirect conversion have led to the design concept of using super-1 kilo-eV induced fluorescence of dielectric layers with transparent photovoltaic conversion devices. For all of our materials, fluorescence and phosphorescence overlap in their function. While many standard phosphors typically provide higher conversion ratios, radiation damage from most radioisotopes quickly degrade this initial advantage for power conversion.

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“…Since we will verify numerical solutions of this computational model against analytical solutions (Boresi, et al,1978), we have solved a single variable with …”

Section: Numerical Implementationmentioning

confidence: 99%

Analysis for Torsion of Hollow Beam by Least Squares and Boundary Elements Method

Kim¹,

Bae²

2012

Journal of the Computational Structural Engineering Institute o

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In this paper we are concerned with the performance of structural stability of torsion in square cross section of a beam with holes. The critical load is defined as the smallest load at which the equilibrium of the structure fails to be stable as the load is slowly increased from zero. The beams subjected to torsion are frequently encountered in general structures and these forces influence to the stability of structure. The boundary element method is found to be very efficient and accurate for the analysis of torsion problems including complex boundary conditions with respect to its simplicity and generality. In this paper, it is required to derive the boundary element formulation for torsion problem and integrate directly on the discrete boundary. To investigate the validity of the developed computer program, three distinctly solid cross-sections which are elliptical, rectangular and triangular one are analyzed, and comparisons are made with analytical approaches where these can also be used.

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Advanced Mechanics of Materials - 3rd edition

Cited by 65 publications

References 0 publications

Ultrafast charge and discharge biscrolled yarn supercapacitors for textiles and microdevices

Ultrafast charge and discharge biscrolled yarn supercapacitors for textiles and microdevices

University Research Program in Robotics - "Technologies for Micro-Electrical-Mechanical Systems in directed Stockpile Work (DSW) Radiation and Campaigns", Final Technical Annual Report, Project Period 9/1/06 - 8/31/07

Analysis for Torsion of Hollow Beam by Least Squares and Boundary Elements Method

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