Academic literature on the topic 'Tension stiffening mechanism'

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Journal articles on the topic "Tension stiffening mechanism"

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Salys, Donatas, Gintaris Kaklauskas, and Viktor Gribniak. "MODELLING DEFORMATION BEHAVIOUR OF RC BEAMS ATTRIBUTING TENSION-STIFFENING TO TENSILE REINFORCEMENT." Engineering Structures and Technologies 1, no. 3 (2009): 141–47. http://dx.doi.org/10.3846/skt.2009.17.

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After cracking, the stiffness of the member along its length varies, which makes the calculation of deformations complicated. In a cracked member, stiffness is largest in the section within the uncracked region while remains smallest in the cracked section. This is because in the cracked section, tensile concrete does not contribute to the load carrying mechanism. However, at intermediate sections between adjacent cracks, concrete around reinforcement retains some tensile force due to the bond-action that effectively stiffens member response and reduces deflections. This effect is known as ten
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Muhamad, Rahimah, M. S. Mohamed Ali, Deric John Oehlers, and Michael Griffith. "The Tension Stiffening Mechanism in Reinforced Concrete Prisms." Advances in Structural Engineering 15, no. 12 (2012): 2053–69. http://dx.doi.org/10.1260/1369-4332.15.12.2053.

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Yang, Zhi Jun, Xin Chen, Su Juan Wang, Jian Gao, and Xin Du Chen. "From Shape to Feature - A Novel Structural Design Idea for Dynamic Feature Adjustable Micro Motion Stages Based on Tension Stiffening." Key Engineering Materials 679 (February 2016): 49–54. http://dx.doi.org/10.4028/www.scientific.net/kem.679.49.

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Guidance mechanism such as fast tool servo (FTS) is widely used in precision machining, in the current design method, either the analytic solution or topological optimization, the dynamic feature, namely the stiffness, inertial and frequency, are subjected to the shape and sizing of the designed structure, especially sensitive to the geometric feature of flexure hinge, which caused high machining precision and high cost. In this proceeding, a novel structural design idea for guidance mechanism type micro motion stages based on tension stiffening which allow the dynamic feature adjustable is pr
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Li, L. P., M. D. Buschmann, and A. Shirazi-Adl. "Strain-rate Dependent Stiffness of Articular Cartilage in Unconfined Compression." Journal of Biomechanical Engineering 125, no. 2 (2003): 161–68. http://dx.doi.org/10.1115/1.1560142.

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The stiffness of articular cartilage is a nonlinear function of the strain amplitude and strain rate as well as the loading history, as a consequence of the flow of interstitial water and the stiffening of the collagen fibril network. This paper presents a full investigation of the interplay between the fluid kinetics and fibril stiffening of unconfined cartilage disks by analyzing over 200 cases with diverse material properties. The lower and upper elastic limits of the stress (under a given strain) are uniquely established by the instantaneous and equilibrium stiffness (obtained numerically
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Islam, Mohammad Momeen Ul. "Investigation of long-term tension stiffening mechanism for ultra-high-performance fiber reinforced concrete (UHPFRC)." Construction and Building Materials 321 (February 2022): 126310. http://dx.doi.org/10.1016/j.conbuildmat.2022.126310.

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Shivers, Jordan L., Jingchen Feng, Anne S. G. van Oosten, Herbert Levine, Paul A. Janmey, and Fred C. MacKintosh. "Compression stiffening of fibrous networks with stiff inclusions." Proceedings of the National Academy of Sciences 117, no. 35 (2020): 21037–44. http://dx.doi.org/10.1073/pnas.2003037117.

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Tissues commonly consist of cells embedded within a fibrous biopolymer network. Whereas cell-free reconstituted biopolymer networks typically soften under applied uniaxial compression, various tissues, including liver, brain, and fat, have been observed to instead stiffen when compressed. The mechanism for this compression-stiffening effect is not yet clear. Here, we demonstrate that when a material composed of stiff inclusions embedded in a fibrous network is compressed, heterogeneous rearrangement of the inclusions can induce tension within the interstitial network, leading to a macroscopic
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Cornachione, Anabelle S., and Dilson E. Rassier. "A non-cross-bridge, static tension is present in permeabilized skeletal muscle fibers after active force inhibition or actin extraction." American Journal of Physiology-Cell Physiology 302, no. 3 (2012): C566—C574. http://dx.doi.org/10.1152/ajpcell.00355.2011.

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When activated muscle fibers are stretched, there is a long-lasting increase in the force. This phenomenon, referred to as “residual force enhancement,” has characteristics similar to those of the “static tension,” a long-lasting increase in force observed when muscles are stretched in the presence of Ca2+ but in the absence of myosin-actin interaction. Independent studies have suggested that these two phenomena have a common mechanism and are caused either by 1) a Ca2+-induced stiffening of titin or by 2) promoting titin binding to actin. In this study, we performed two sets of experiments in
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Farris, Dominic James, Jonathon Birch, and Luke Kelly. "Foot stiffening during the push-off phase of human walking is linked to active muscle contraction, and not the windlass mechanism." Journal of The Royal Society Interface 17, no. 168 (2020): 20200208. http://dx.doi.org/10.1098/rsif.2020.0208.

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The rigidity of the human foot is often described as a feature of our evolution for upright walking and is bolstered by a thick plantar aponeurosis that connects the heel to the toes. Previous descriptions of human foot function consider stretch of the plantar aponeurosis via toe extension (windlass mechanism) to stiffen the foot as it is levered against the ground for push-off during walking. In this study, we applied controlled loading to human feet in vivo , and studied foot function during the push-off phase of walking, with the aim of carefully testing how the foot is tensioned during con
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Megalooikonomou, Konstantinos G. "PHAETHON: Software for Analysis of Shear-Critical Reinforced Concrete Columns." Modern Applied Science 12, no. 3 (2018): 1. http://dx.doi.org/10.5539/mas.v12n3p1.

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Earthquake collapse of substandard reinforced concrete (RC) buildings, designed and constructed before the development of modern seismic design Codes, has triggered intense efforts by the scientific community for accurate assessment of this building stock. Most of the proposed procedures for the prediction of building strength and deformation indices were validated by assembling databases of RC column specimens tested under axial load and reversed cyclic lateral drift histories. Usually a column structural behavior is assessed by considering all involving mechanisms of behavior, namely flexure
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Killaars, Anouk R., Cierra J. Walker, and Kristi S. Anseth. "Nuclear mechanosensing controls MSC osteogenic potential through HDAC epigenetic remodeling." Proceedings of the National Academy of Sciences 117, no. 35 (2020): 21258–66. http://dx.doi.org/10.1073/pnas.2006765117.

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Cells sense mechanical cues from the extracellular matrix to regulate cellular behavior and maintain tissue homeostasis. The nucleus has been implicated as a key mechanosensor and can directly influence chromatin organization, epigenetic modifications, and gene expression. Dysregulation of nuclear mechanosensing has been implicated in several diseases, including bone degeneration. Here, we exploit photostiffening hydrogels to manipulate nuclear mechanosensing in human mesenchymal stem cells (hMSCs) in vitro. Results show that hMSCs respond to matrix stiffening by increasing nuclear tension and
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Dissertations / Theses on the topic "Tension stiffening mechanism"

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Mobasher, Barzin. "Development of Design Procedures for Flexural Applications of Textile Composite Systems Based on Tension Stiffening Models." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-77984.

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The Aveston Copper and Kelly (ACK) Method has been routinely used in estimating the efficiency of the bond between the textile and cementitious matrix. This method however has a limited applicability due to the simplifying assumptions such as perfect bond. A numerical model for simulation of tensile behavior of reinforced cement-based composites is presented to capture the inefficiency of the bond mechanisms. In this approach the role of interface properties which are instrumental in the simulation of the tensile response is investigated. The model simulates the tension stiffening effect of cr
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Islam, Mohammad Momeen Ul. "Investigation of tensile creep and tension stiffening behaviour for Ultra-High-Performance Fiber Reinforced Concrete (UHPFRC)." Thesis, 2019. http://hdl.handle.net/2440/120660.

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Ultra-high-performance fiber reinforced concrete (UHPFRC) has improved properties over conventional concrete, such as high tensile strength, greater compressive strength and enhanced post cracking characteristics. The steel fibers in UHPFRC are recognized as providing resistance to crack widening in tension zones because of the fibers bridge adjacent cracks, which consequently enhances the tensile performance. Although, UHPFRC is capable of resisting the induced tensile stresses, it has still limitations under sustained tensile loads. It is also not well understood whether these characteristic
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Book chapters on the topic "Tension stiffening mechanism"

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Gribniak, V., G. Kaklauskas, and D. Bacinskas. "Experimental investigation of shrinkage influence on tension stiffening of RC beams." In Creep, Shrinkage and Durability Mechanics of Concrete and Concrete Structures. Taylor & Francis, 2008. http://dx.doi.org/10.1201/9780203882955.ch75.

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Conference papers on the topic "Tension stiffening mechanism"

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Molaei, Parsa, Terrilyn A. Legier, and Hunter B. Gilbert. "A Continuously Variable Stiffness Mechanism for Tendon-Driven Robots Using Decoupled Stiffening Cables and Hertzian Contact Mechanics." In ASME 2024 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/detc2024-143916.

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Abstract Cable-driven continuum robots that consist of a flexible backbone and are driven by applying tension and displacement on the cables are of interest for use in unstructured environments. Previous work has explored methods to alter the stiffness along the length of the robot via the introduction of additional cables beyond those used for actuation. The introduction of these tendons on the robot would allow the operator to adjust and increase the stiffness value at different locations by prescribing and removing a fixed pretension on the stiffening tendons. This paper presents a continuu
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Farhang, K., and A. Midha. "Investigation of Parametric Vibration Stability in Slider-Crank Mechanisms With Elastic Coupler." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0332.

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Abstract An analytical model for investigating parametric vibration stability of slider-crank mechanisms with flexible coupler is presented. The continuous model is formulated to account for initial curvature as well as internal material damping in the coupler. The governing partial differential equations are reduced to a system of ordinary differential equations in terms of the time-dependent modal coefficients. Floquet theory is employed to determine the effects of geometric stiffening as well as relative component mass on parametric stability of mechanism response. Results indicate the exis
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Yang, Zhijun, Youdun Bai, and Xin Chen. "Nonlinear Response Compensation of Flexure-Hinge Based Guiding Mechanism Using Bi-Linear Control Input." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-68066.

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The flexure-hinge (FH) based guiding mechanism, such as fast tool servo (FTS) or micro-lens-array punching machine, is widely used in micro/nano precision engineering, due to their good linearity of stiffness. The major design advantage of FHs for this application was the absence of backlash and friction in the direction of the motion. This provides very smooth, high-precision operating characteristics without inducing evident wear which is commonly associated with high speeds or continuous operation. The dynamic model of FH can be simplified as a spring-mass-damping system, both the stiffness
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Kaklauskas, G., and V. Gribniak. "The Hybrid Approach in Constitutive Modelling of Tension Stiffening Accounting for the Shrinkage Effect." In 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures. American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479346.112.

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Li, Lei, and E. Chen. "Effects of corrosion on tension stiffening and cracking behaviour of reinforced Engineered Cementitious Composite and concrete." In 12th International Conference on Fracture Mechanics for Concrete and Concrete Structures. IA-FraMCoS, 2025. https://doi.org/10.21012/fc12.1314.

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Driscoll, Tristan P., Su-Jin Heo, and Robert L. Mauck. "Dynamic Tensile Loading and Altered Cell Contractility Modulate Nuclear Deformation and Cytoskeletal Connectivity." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80550.

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Effective use of progenitor cells in orthopaedic tissue engineering will require a thorough understanding of the mechanisms by which forces are transmitted and sensed, and how these change with differentiation. Nesprins are a family of structural proteins that partially localize to the nuclear envelope where they interact with both cytoskeletal and nucleoskeletal proteins [1]. At their C-terminus, nesprins interact through a KASH domain with proteins of the nuclear membrane, including SUN and Lamin A/C [1]. Multiple isoforms of the 4 nesprin genes are produced by alternative transcriptional in
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Buskohl, Philip R., Russell A. Gould, and Jonathan T. Butcher. "Biomechanical Analysis of Embryonic Atrioventricular Valvulogenesis." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53791.

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Heart valve development is directed by a complex interaction of molecular and mechanical cues[1]. Both molecular and mechanical based approaches are needed to clarify these relationships. Many technologies exist for the former, but the short length scale and super-compliant material properties of embryonic valve tissue make conventional mechanical testing techniques ineffective. The pipette aspiration technique has been a useful tool in cell mechanics[2] and has recently been applied to adult valve leaflets[3]. Geometric effects of thin, planar tissues however compromise the utility of aspirat
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Kanny, Krishnan, Hassan Mahfuz, Leif A. Carlsson, Tonnia Thomas, and Shaik Jeelani. "Flexural Fatigue of PVC Foams." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/amd-25415.

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Abstract Flexural fatigue tests were performed on cross-linked PVC foams of densities in the range from 75 to 300 kg/m3 at a frequency of 3Hz and at a stress ratio, R = 0.1. S-N diagrams were generated, and the failure mechanisms were examined. The fatigue behavior was found to be similar to structural materials with a fatigue strength that decreased with increased stress and increased with increased foam density. The final failure event was catastrophic due to crack propagation initiating at the tension side of the beam. SEM analyses of unfailed and failed 300kg/m3 density foam specimens reve
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Prevenslik, Thomas. "Validity of Molecular Dynamics by Quantum Mechanics." In ASME 2013 4th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/mnhmt2013-22027.

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MD is commonly used in computational physics to determine the atomic response of nanostructures. MD stands for molecular dynamics. With theoretical basis in statistical mechanics, MD relates the thermal energy of the atom to its momentum by the equipartition theorem. Momenta of atoms in an ensemble are determined by solving Newton’s equations with inter-atomic forces derived from Lennard-Jones potentials. MD therefore assumes the atom always has heat capacity as otherwise the momenta of the atoms cannot be related to their temperature. In bulk materials, the continuum is simulated in MD by imp
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Daniel, Isaac M., and R. A. Jandro Abot. "Fabrication, Testing and Analysis of Composite Sandwich Structures." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-1206.

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Abstract The objective of this work was to study the behavior of composite sandwich structures and develop simple models to explain this behavior as a function of material, geometric and loading parameters. The scope of the study consists of mechanical characterization of the sandwich constituent materials, i. e., composite facings, honeycomb or foam cores, and adhesive layers; fabrication and testing of sandwich beams in pure bending; identification and recording of failure mechanisms by direct observation and nondestructive evaluation; and comparison of observed deformation and failure behav
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