Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"eccentric loading"”.
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Mode interaction in lipped channel columns under concentric or eccentric loading
… the theoretical solutions. A description of the loading rig and its operation is presented in conjunction with a full set of assembly and component design drawings. In general, the procedure used in the investigation was to load columns of various section dimensions and with various loading …
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Kinetic, Kinematic, and Metabolic Response of Low Volume Accentuated Eccentric Loading in Collegiate Weightlifters
… squat (NDS) protocol and an acute accentuated eccentric loaded squat (AEL) protocol. Eight collegiate weightlifters were performed the 2 squat protocols. Eccentric and concentric kinetic and kinematic data were collected via synchronized force plate and linear position transducer. Metabolic …
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Behavior, strength and flexural stiffness of circular concrete columns reinforced with FRP bars and spirals/hoops under eccentric loading
La détérioration des structures en béton armé avec des barres d’armature d’acier peut être observée quotidiennement dans les régions à climat agressif. Le renforcement interne en polymères renforcés de fibres (PRF) a démontré sa faisabilité grâce à différents éléments structuraux en génie civil. …
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Use of a Spine Robot Employing a Real Time Force Control Algorithm to Develop, Simulate, and Compare Spinal Biomechanical Testing Protocols: Eccentric Loading, Pure Moment, and a Novel Head Weight Protocol
… include Pure Moment (PM), follower load, and eccentric lever arm (EL) loading methods. Although these methods are widely accepted, there is always a goal to try to better simulate physiologic loading conditions. While the follower load attempts to simulate compression due to muscle activation, …
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Use of a Multi-Axis Robotic Testing Platform to Investigate the Sagittal Mechanics of the Multi-Body Lumbar Spine
… using three different protocols: pure moment, eccentric loading, and a new method called combined loading moment. The objectives of the study were to introduce a new protocol that overcomes the limitations of previous methods by applying more realistic loading conditions and to compare the …
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Interação local-global na flambagem de colunas de seção U enrijecida
… lipped channel columns under concentric and eccentric loading is presented. A semi-energy method is used to investigate the non-linear interaction between the local and global flexural buckling modes. The results of this analysis show the stable and unstable local post-critical equilibrium …
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Quantification of eccentric load using accelerometer imbedded in GPS
… change of directions and stopping require eccentric contractions of leg muscles, potentially causing muscle damage and affecting athletic performance. Thus, it is important to monitor eccentric loading in games and training. A variable known as “eccentric index” (EI) purports to be a better …
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Muscle Loading Treatments for Achilles Tendinopathy
… decreasing quality of life. Physical therapy (eccentric loading) decreases the symptoms of tendinopathy and restores Achilles tendon functionality. However, the mechanism by which these mechanical stimulations induce healing is poorly understood. There is a clinically relevant motivation to …
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Assessment of eurocode provisions for eccentrically loaded concrete-encased columns with out-of-code parameters.
… evaluate the viability of applying the current eccentric compressive design provisions outlined in Eurocode 4 (EC4) for concrete-encased steel composite columns with out-of-code parameters. Specifically, the research undertakes an in-depth analysis of the impact of material and geometric …
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Assessment of eurocode provisions for eccentrically loaded concrete-encased columns with out-of-code parameters.
… evaluate the viability of applying the current eccentric compressive design provisions outlined in Eurocode 4 (EC4) for concrete-encased steel composite columns with out-of-code parameters. Specifically, the research undertakes an in-depth analysis of the impact of material and geometric …
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Design and Development Towards a Novel Prosthesis for Total Shoulder Arthroplasty to Reduce Aseptic Glenoid Loosening
… for 37% of postsurgical failures in TSA. Eccentric loading of the prosthetic glenoid cup, leading to the “rocking horse” effect, is one of the prevalent causes of aseptic glenoid loosening. Current anatomical total shoulder prosthesis (ATSP) geometry does not consider all the GH …
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Concrete columns and beams reinforced with FRP bars and grids under monotonic and reversed cyclic loading
… consisted of four phases; (i) columns under eccentric monotonic loading; (ii) reinforced cylinders under concentric compression; (iii) columns under constant axial compression and lateral load reversals, and (iv) cantilever beams subjected lateral monotonic or cyclic loading. The results of …
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Characterizing the Three-Dimensional Behavior of Bistable Micromechanisms
… of these mechanisms and the effect of eccentric loading conditions would be helpful in design and analysis of FCBMs. Two 3-D FEA models were developed for analysis and validation purposes. The 3-D solid element model includes great detail regarding the geometry and boundary conditions …
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Novel Preclinical Approaches to the Understanding and Treatment of Achilles Tendinopathy
… interventions show poor long-term outcomes. Eccentric loading of the Achilles muscle-tendon unit is an effective physical therapy for treatment of symptomatic human tendinopathy. Post-injury analgesia is often achieved with non-steroidal anti-inflammatory drugs such as ibuprofen; however, …
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An evaluation of the Iosipescu specimen for composite materials shear property measurement
… sensitivity of some fiber orientations to eccentric loading which induced twisting and yielded spurious shear stress-strain curves. In the numerical analysis, it is shown that the Iosipescu specimens for different fiber orientations have to be modeled differently in order to closely …
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Investigations of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) Column
… slender columns) subjected to a concentric or eccentric load, the optimal UHPFRC mixture was then utilized to manufacture the test specimens for experimental investigations. (3) A generic mechanic-based partial-interaction (PI) approach that used to simulate the conventional concrete members …
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Biomechanical Comparison of Traditional Laminectomy and Minimally‑Invasive Facetectomies
… laminectomy (TL) using three different loading scenarios. The three different loading scenarios utilized in this study were the pure moment (PM), combined loading and moment (CLM), and the coupled‑eccentric loading (CEL) protocols. The PM testing protocol is the standard form of …
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Application of numerical limit analyses for undrained stability problems in clay
… failure in combined bending, shear and axial loading; 2) implementation of functions to represent the undrained strength anisotropy of soft clays; and 3) representation of pore water pressures and effective stress strength parameters for stability analyses that include free draining soil …