Academic literature on the topic 'Concept of tensile testing device'

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Journal articles on the topic "Concept of tensile testing device"

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Tautorat, Carsten, Kerstin Lebahn, Stefan Oschatz, et al. "Thermal welding of polymeric biomaterials: Development of a novel device for temperature controlled local application." Current Directions in Biomedical Engineering 7, no. 2 (2021): 660–63. http://dx.doi.org/10.1515/cdbme-2021-2168.

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Abstract We present a thermal processing device, equipped for local heating and welding of biomaterials, e.g. electrospun nonwovens or polymer films. Depending on the application and choice of materials, we aim to determine appropriate processing parameters for permanent and non-permanent welds. Due to the modular device structure, applicationspecific heating tools can be used. Process temperature up to 250 °C is feasible. In this concept study, a welding tool with interchangeable small-size heating tips of different geometric shapes were investigated regarding their suitability for welding of
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Jung, Hyun-Suk, Mooyoung Yoo, and Chang-Sik Choi. "Flexural Performance of Removable Deck Slabs with Fixing Device Details." Applied Sciences 13, no. 8 (2023): 4903. http://dx.doi.org/10.3390/app13084903.

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This study presents a new concept for a deck plate and an accompanying application for a slab system that is easy to fix and separate during construction, while ensuring safe construction loads and optimal flexural performance. Finite element analysis (FEA) was used to determine the load on the fixing device’s contact surface and the specimen’s shape. A direct tensile test was then performed using a universal testing machine to evaluate the anchorage performance of the fixing device. The results of this test were used to optimize the details of the fixing device, which were then evaluated for
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Vieira, A. C., Ricardo Medeiros, R. M. Guedes, A. T. Marques, and V. Tita. "Visco-Elastic-Plastic Properties of Suture Fibers Made of PLA-PCL." Materials Science Forum 730-732 (November 2012): 56–61. http://dx.doi.org/10.4028/www.scientific.net/msf.730-732.56.

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Aliphatic polyesters, like PGA, PLA, PCL and PDO, among others, are biodegradable materials that find applications in many biomedical devices, from fibers for subcutaneous sutures to other regenerative surgery implants. The main concept among these applications is to use a biodegradable device that temporarily replace the biomechanical functions, avoiding this way the chirurgical procedures to remove the device. However, the dimensioning of these devices is complex, not only because the mechanical properties evolve during degradation, but also because these biodegradable materials cannot be as
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Gueninchault, N., H. Proudhon, and W. Ludwig. "Nanox: a miniature mechanical stress rig designed for near-field X-ray diffraction imaging techniques." Journal of Synchrotron Radiation 23, no. 6 (2016): 1474–83. http://dx.doi.org/10.1107/s1600577516013850.

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Multi-modal characterization of polycrystalline materials by combined use of three-dimensional (3D) X-ray diffraction and imaging techniques may be considered as the 3D equivalent of surface studies in the electron microscope combining diffraction and other imaging modalities. Since acquisition times at synchrotron sources are nowadays compatible with four-dimensional (time lapse) studies, suitable mechanical testing devices are needed which enable switching between these different imaging modalities over the course of a mechanical test. Here a specifically designed tensile device, fulfilling
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Melnykowycz, Mark, Michael Tschudin, Rebecca Selle, et al. "Soft Condensed Matter Hybrid Fiber Sensors for Vital Function Monitoring." Advances in Science and Technology 100 (October 2016): 79–84. http://dx.doi.org/10.4028/www.scientific.net/ast.100.79.

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Textile band structures with integrated soft condensed matter sensor (SCMS) can be used as a vital function monitor device to detect pulse wave and breathing on the human body. A textile an elastic band was used as a support material and the U-shaped SCMS fiber sensor was bonded on the surface with elastic band with a liquid rubber bonding material. The sensor signal and gauge factor of the textile sensor structure was investigated using tensile testing experiments. The resistivity of the sensor structure increased linearly within a strain of 10 to 50%, and a slope of 8 (kOhm/% strain) could b
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Lee, Candice Y., Joshua K. Wong, Jude S. Sauer, et al. "An Automated Expanded Polytetrafluoroethylene Suturing and Coaxial Fastener System for Mitral Chordae Replacement: Strength, Feasibility, and Healing." Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery 11, no. 6 (2016): 400–406. http://dx.doi.org/10.1097/imi.0000000000000316.

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Objective Mitral valve (MV) chordae replacements can be technically challenging. Technology that remotely delivers and accurately secures artificial chordae may reduce the learning curve and improve the reliability of MV repairs. Methods The technology involved two devices: a remote suturing device for delivery of expanded polytetrafluoroethylene (ePTFE) suture to the papillary muscle and a Coaxial titanium suture fastener (TF) device with integrated saline infusion for real-time determination of chordae length during fixation. A mechanical model simulating MV chordae tension in a beating hear
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Jayakumar, Ashwin, Javier Bermejo-García, Daniel Rodríguez Jorge, Rafael Agujetas, Francisco Romero-Sánchez, and Francisco J. Alonso-Sánchez. "Design, Control, and Assessment of a Synergy-Based Exosuit for Patients with Gait-Associated Pathologies." Actuators 12, no. 8 (2023): 309. http://dx.doi.org/10.3390/act12080309.

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With ever-rising population comes a corresponding rise in people with mobility issues who have difficulty handling tasks in their daily lives. Such persons could benefit significantly from an active movement assistance device. This paper presents the design of a lower-limb exosuit designed to provide the wearer with useful gait assistance. While exoskeletons have existed for a while, soft exoskeletons or exosuits are relatively new. One challenge in the design of a gait-assistance device is the reduction of device weight. In order to facilitate this, the concept of kinematic synergies is imple
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Bąkała, Marcin, and Piotr Błaszczyk. "Integrated Platform for Determining Solderability Parameters: Module for Measuring the Surface Tension of Liquid Solders." Applied Sciences 14, no. 17 (2024): 7730. http://dx.doi.org/10.3390/app14177730.

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This article describes a module and method for measuring the surface tension of liquid solders implemented on a measuring device as part of an integrated platform for automatic measurement of brazebility parameters at high temperatures. A concept for constructing a test stand is presented, with a description of the individual functional blocks. The developed stand allows for testing of the solder’s surface tension. The surface tension is one of the parameters that describe the thermodynamics of interfacial reactions and the structure of newly created joints. Determining the physicochemical int
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Kaul, Anand, Ahmed Abbas, Gabriel Smith, Sunil Manjila, Jonathan Pace, and Michael Steinmetz. "A revolution in preventing fatal craniovertebral junction injuries: lessons learned from the Head and Neck Support device in professional auto racing." Journal of Neurosurgery: Spine 25, no. 6 (2016): 756–61. http://dx.doi.org/10.3171/2015.10.spine15337.

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Fatal craniovertebral junction (CVJ) injuries were the most common cause of death in high-speed motor sports prior to 2001. Following the death of a mutual friend and race car driver, Patrick Jacquemart (1946–1981), biomechanical engineer Dr. Robert Hubbard, along with race car driver and brother-in-law Jim Downing, developed the concept for the Head and Neck Support (HANS) device to prevent flexion-distraction injuries during high-velocity impact. Biomechanical testing showed that neck shear and loading forces experienced during collisions were 3 times the required amount for a catastrophic i
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Rodriguez Castro, E., I. Aviles Santillana, S. Sgobba, et al. "Characterization at 4 K of FXM-19 forged products for their use in fusion energy." IOP Conference Series: Materials Science and Engineering 1327, no. 1 (2025): 012206. https://doi.org/10.1088/1757-899x/1327/1/012206.

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Abstract Driven by the electrification of industries and economic, the global demand for electricity is anticipated to rise in the coming decades. In this framework there is a growing interest in fusion energy devices as a sustainable energy solution. Among the different concepts, SPARC stands out as one of the most promising ones: a compact high – field tokamak built with high temperature superconductors (HTS) with the ambitious goal of being the world’s first confined net energy fusion system (Q>1) [1]. In this quest, Commonwealth Fusion Systems (CFS) has developed groundbreaking HTS magn
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Dissertations / Theses on the topic "Concept of tensile testing device"

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Janiš, Adam. "Mechanické vlastnosti materiálů pro 3D tisk." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442479.

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This thesis focuses on the description of 3D printing technologies using the FDM method, which uses deposition of molten thermoplastics and their subsequent cooling and solidification layer by layer. This unique structure then shows a strong anisotropy of mechanical properties and, as a result, their testing and print settings are very important. Tensile testing of plastic materials, including indicators of mechanical properties, are described in this thesis according to ČSN EN ISO standard. The practical part presents the concept of a device capable of performing these tests. The block diagra
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Book chapters on the topic "Concept of tensile testing device"

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Herkersdorf, Andreas, Michael Engel, Michael Glaß, et al. "RAP Model—Enabling Cross-Layer Analysis and Optimization for System-on-Chip Resilience." In Dependable Embedded Systems. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-52017-5_1.

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AbstractThe Resilience Articulation Point (RAP) model aims to provision a probabilistic fault abstraction and error propagation concept for various forms of variability related faults in deep sub-micron CMOS technologies at the semiconductor material or device levels. RAP assumes that each of such physical faults will eventually manifest as a single- or multi-bit binary signal inversion or out-of-specification delay in a signal transition between bit values. When probabilistic error functions for specific fault origins are known at the bit or signal level, knowledge about the unit of design an
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Jacobs Felix. "Investigation of Geogrid Reinforced Soil Using Biaxial Compression Tests." In Advances in Soil Mechanics and Geotechnical Engineering. IOS Press, 2013. https://doi.org/10.3233/978-1-61499-297-4-318.

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The principle compound behavior of geogrid reinforced soil is being investigated with large scale laboratory tests and corresponding numerical simulations. With a highly sophisticated testing device developed at RWTH Aachen University, biaxial compression tests of geogrid reinforced soil have been carried out under plane strain conditions with specimen dimensions up to 800 × 820 × 460 mm3(H × W × D). In this paper, the load transfer between soil and geogrid is studied closely by varying the numbers of longitudinal and transverse tensile members of the ge
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Covarrubias, Mario, Monica Bordegoni, Umberto Cugini, and Elia Gatti. "Supporting Unskilled People in Manual Tasks through Haptic-Based Guidance." In Information Systems Research and Exploring Social Artifacts. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2491-7.ch018.

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This chapter presents a methodology that the authors developed for the evaluation of a novel device based on haptic guidance to support people with disabilities in sketching, hatching, and cutting shapes. The user’s hand movement is assisted by a sort of magnet or spring effect attracting the hand towards an ideal shape. The haptic guidance device has been used as an input system for tracking the sketching movements made by the user according to the visual feedback received from a physical template without haptic assistance. Then the device has been used as an output system that provides force
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Lim MyungJoon, Park Jiyoung, Lee Kuem Ju, et al. "Usability of a New Writing Assistive Device for Persons with Cervical Spinal Cord Injury." In Studies in Health Technology and Informatics. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-566-1-710.

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The hand function for persons with cervical spinal cord injury (PCSCI) is most frequently cause difficulties in leading normal lives. The purpose of this study was to test the usability of a new writing assistive device (NWAD) for PCSCI. To access its usability, the authors design usability testing method and test the NWAD to five individuals with cervical spinal cord injury. From the usability testing, we have found number of issues that lead us to key design concept about developing the NWAD. The NWAD will be redesigned based on the result of the present study. We expect that the NWAD will h
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"Treeing Characteristics in HTV Silicone Rubber." In Electrical Insulation Breakdown and Its Theory, Process, and Prevention. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-8885-6.ch003.

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Silicone rubber (SiR) is widely used as the main insulating material in cable accessories and faces high temperature challenges during operation. Pulse overvoltages can threaten working state of the insulation. In order to understand electrical tree degradation process at high temperature under repeated pulse voltages, stress testing was performed in this experiment. The ambient temperature (Tamb) was set to 30, 60, 90, 120, and 150 ° C, and the frequencies of the pulses were set to 5, 20, 100, 200, and 1000 Hz, respectively. During operation, it is also threatened by mechanical stress, which
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Medroa Inacio, Pedro Miguel, Marcel Saltan, and Kerstin Denecke. "Integrating Laboratory Testing Results at Point-of-Care in Hospital@Home Care Settings: A FHIR-Based Approach." In Studies in Health Technology and Informatics. IOS Press, 2024. http://dx.doi.org/10.3233/shti240055.

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The care model Hospital@Home offers hospital-level treatment at home, aiming to alleviate hospital strain and enhance patient comfort. Despite its potential, integrating digital health solutions into this care model still remains limited. This paper proposes a concept for integrating laboratory testing at the Point of Care (POC) into Hospital@Home models to improve efficiency and interoperability. Methods: Using the HL7 FHIR standard and cloud infrastructure, we developed a concept for direct transmission of laboratory data collected at POC. Requirements were derived from literature and discus
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Miller Andrew, Allen Peter, and Fowler Dennis. "In-Vivo Stereoscopic Imaging System with 5 Degrees-of-Freedom for Minimal Access Surgery." In Studies in Health Technology and Informatics. IOS Press, 2004. https://doi.org/10.3233/978-1-60750-942-4-234.

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Endoscopic imaging for minimal access surgery has many limitations that include: 2D and narrow angle imaging, limited workspace of the endoscope caused by the fulcrum effect of the body wall, and the presence of the endoscope in the incision that prevents use of the incision for other instrumentation. We have designed a novel stereoscopic 3D imaging device with 5 DOF and remote control that can be inserted and attached in the body cavity. The device, contained within a 11/16" tube, includes two miniature cameras and five small motors that position the cameras to provide a stereoscopic view of
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Hoyos Laureano R., Laikram Arthit, and Puppala Anand J. "A novel true triaxial apparatus for testing unsaturated soils under suction-controlled multi-axial stress states." In Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2005. https://doi.org/10.3233/978-1-61499-656-9-387.

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This paper describes a novel servo-controlled true triaxial apparatus that has been developed to test 3-in (7.5-cm) per side, cubical specimens of unsaturated soil under controlled-suction states for a wide range of stress paths that are not achievable in a conventional cylindrical apparatus. The cell is a mixed-boundary type of device, with the specimen seated on top of a high-air-entry disk(s) and between five flexible (latex) membranes on the remaining sides of the cube. The new cell is an upgraded, more elaborate version of the one recently implemented by Hoyos (1998), featuring two indepe
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Wu, Min, and Wenfeng Ying. "Research and Practice of Mechatronic Engineering Experimental Platform Based on Digital Twin." In Advances in Transdisciplinary Engineering. IOS Press, 2024. http://dx.doi.org/10.3233/atde231131.

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Aiming at the problems existing in product design, model design and analysis, electrical and mechanical collaborative design, process design and other aspects of Mechatronics Engineering, this paper uses digital twin technology to build Mechatronics experimental platform. The digital twin model is established in Siemens NX, and the communication network based on TCP, plcsim adv and other communication modes is constructed. The platform can realize the functions of product design, process design, virtual machining, virtual motion simulation, virtual real joint debugging and so on. Taking the au
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Quesada Díaz, Raquel, and Anna Syberfeldt. "Optimised Shop-Floor Operator Support on an Integrated AR and PLM Framework for Remanufacturing." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220161.

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Product disassembly and inspection are essential operations in a sustainable product life cycle, particularly in end-of-life strategies such as remanufacturing. This study identifies critical aspects of usability of a framework that supports the remanufacturing process and its operators. Two of the challenges faced by operators in remanufacturing are the number of product variants and quality decisions. As a result of these, the performance time and the number of errors committed increase. The integration of Augmented Reality (AR), product lifecycle management and expert systems increase the e
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Conference papers on the topic "Concept of tensile testing device"

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Marchebois, Hervé, Nicolas Dulcy, E. Paul Cernocky, Chris Desadier, Bruce Urband, and Frédéric Legay. "NACE TM0177 Method A Uniaxial Tensile Testing: Learnings from Investigations on Test Procedure." In CORROSION 2009. NACE International, 2009. https://doi.org/10.5006/c2009-09094.

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Abstract The NACE TM0177 Method A Uniaxial Tensile test using a proof-ring device is extensively employed in order to assess the Sulfide Stress Cracking (SSC) susceptibility which can occur on Oil Country Tubular Goods (OCTG) and Line Pipes (LP). It is also well understood that different test methods may not necessarily provide the same ranking. This is the reason why replicate testing is advisable to tighten as much as possible the scattering of the SSC threshold. Nevertheless, SSC test results can show statistical variability for the same material. The aim of this paper is to check whether t
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Eckert, Maroš, Peter Fabo, Michal Kuba, and Peter Jancich. "Development and Implementation of Equipment for Diagnosing and Testing the Properties of 3D Printing Samples." In Materials and Technologies for Defense and Security. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-l8d07o.

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In connection with the development of 3D printing and expanding the possibilities of implementing 3D printing outputs in technology and industry, there is a growing need to know the properties of printed products during their mechanical stress depending on their internal structure, temperature, static and cyclic mechanical stress. The subject of the contribution is the development and construction of precise testing equipment for 3D printing products, such as plastics as well as metallic and non-metallic samples up to the level of force acting on samples with a maximum value of 5 kN. The test
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Roy, Ajit K., Ramprashad Prabhakarar, Mohammad K. Hossain, Sudheer Sama, Venkataramakrishnan Selvaraj, and Phani P. Gudipati. "Cracking of Target Structural Materials for Transmutation Applications." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04559.

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Abstract Three martensitic candidate target structural materials, namely Alloys EP-823 and HT-9, and Type 422 stainless steel (SS) were tested to evaluate their susceptibility to stress corrosion cracking (SCC), hydrogen embrittlement (HE) and localized corrosion (pitting and crevice) in neutral and acidic aqueous environments at ambient and elevated temperatures. All three materials were tested in the quenched and tempered condition. The susceptibility to SCC behavior of these materials was determined by constant-load (CL), slow-strain-rate (SSR) and self-loaded (C-ring and U-bent) testing me
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Naylor, Thomas, Roger Black, Cameron Hernandez, Paul McMullin, and Brian D. Jensen. "Design of Constant-Force Wristbands for a Wearable Health Device." In ASME 2022 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/detc2022-90632.

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Abstract This paper presents the design and testing of a wrist-worn Wearable Health Device (WHD) with an integrated compliant Constant-Force Mechanism (CFM) as part of the wrist band, acting to keep the band tension constant. An integrated CFM can keep pressure on the wrist constant or near-constant, thereby solving one of the main difficulties (movement of and varying force on the sensor area) that wrist-worn WHDs face. The design requirements for a constant-force wristband were narrowed down to seven critical requirements. Multiple CFMs were explored with two main concepts (buckling beams an
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Foster, Jacob, Reza Ghorbani, and Pierre Garambois. "Development and Testing of a Point Absorber Wave Energy Conversion." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49560.

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Wave energy conversion as a means for small scale energy production is approaching commercial viability. This paper presents the undergoing development of a wave energy conversion device at the University of Hawaii at Manoa. The device is a three part point absorber with two buoys, one floating and absorbing incoming waves; the other maintaining tension on the third mechanism, the submerged power-take-off unit. This design is discussed as three concept configurations for WEC construction. The analytical solution is developed, and the buoys response is computed due to a selected and analyzed se
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Walsh, William, Sandeep Abotula, and Bharath Konda. "Ring Expansion Testing Innovations: Hydraulic Clamping and Strain Measurement Methods." In 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9407.

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Abstract Ring expansion testing is one of the three accepted methods in API 5L for the measurement of yield strength for line pipe. The other two are flattened-strap tensile testing and round-bar tensile testing. A novel-concept ring expansion test machine has recently been commissioned which uses hydraulic pressure to clamp the top and bottom pressure-reacting plates rather than a traditional bolting arrangement. The benefit of hydraulic clamping is vastly reduced set-up times. This paper describes the design approach and the pitfalls that were overcome in commissioning the ring expansion tes
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Montazeri, Mahsa, and David R. Huitink. "Development of a Novel Test Setup to Study the Combined Effects of Electromigration and Mechanical Stress in Solder Interconnects." In ASME 2020 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipack2020-2598.

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Abstract One key concern that arises from scaling of device interconnects with increasing power density requirements is electromigration (EM). On the other hand, thermal cycling fatigue has always been a reliability challenge in solder interconnects. Variations in device temperature caused by environmental or operating conditions induce stress in solders, as they usually connect two components with different coefficients of thermal expansion (CTE). These thermally induced stresses may lead to crack formation within the solders. The combination of EM effects and thermal cycling add to the compl
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Thonsgaard, Matthew, and Larry D. Peel. "Development of Light Weight, Low Cost Pleated Soft Actuators." In ASME 2025 Aerospace Structures, Structural Dynamics, and Materials Conference. American Society of Mechanical Engineers, 2025. https://doi.org/10.1115/ssdm2025-151643.

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Abstract Soft pneumatic actuators are a useful type of actuator for compliant structures, including inflatable robots, morphing wings, and assistive devices for astronauts. One type, Rubber Muscle (McKibben-like) Actuators (RMAs) provide high pulling forces by using pneumatic pressure to radially expand and axially contract a reinforced bladder. Similarly pleated rubber muscle actuators (PRMAs) are simpler to fabricate but produce very high tensile forces using an unfolding pleated bladder and straight axial reinforcements in the valleys of the pleats. This work primarily discusses the proof-o
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Mohammad Shafayet Zamil, Aman Haque, Hojae Yi, and Virendra M Puri. "A Device for Plant Cell Wall Testing in Tensile Loading." In 2012 Dallas, Texas, July 29 - August 1, 2012. American Society of Agricultural and Biological Engineers, 2012. http://dx.doi.org/10.13031/2013.42174.

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Ura, Y., K. Sugano, T. Tsuchiya, and O. Tabata. "Tensile testing of fullerene nano wire using electrostatic MEMS device." In TRANSDUCERS 2009 - 2009 International Solid-State Sensors, Actuators and Microsystems Conference. IEEE, 2009. http://dx.doi.org/10.1109/sensor.2009.5285640.

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Reports on the topic "Concept of tensile testing device"

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Wu, Yingjie, Selim Gunay, and Khalid Mosalam. Hybrid Simulations for the Seismic Evaluation of Resilient Highway Bridge Systems. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2020. http://dx.doi.org/10.55461/ytgv8834.

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Bridges often serve as key links in local and national transportation networks. Bridge closures can result in severe costs, not only in the form of repair or replacement, but also in the form of economic losses related to medium- and long-term interruption of businesses and disruption to surrounding communities. In addition, continuous functionality of bridges is very important after any seismic event for emergency response and recovery purposes. Considering the importance of these structures, the associated structural design philosophy is shifting from collapse prevention to maintaining funct
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Lehotay, Steven J., and Aviv Amirav. Fast, practical, and effective approach for the analysis of hazardous chemicals in the food supply. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7695587.bard.

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Background to the topic: For food safety and security reasons, hundreds of pesticides, veterinary drugs, and environmental pollutants should be monitored in the food supply, but current methods are too time-consuming, laborious, and expensive. As a result, only a tiny fraction of the food is tested for a limited number of contaminants. Original proposal objectives: Our main original goal was to develop fast, practical, and effective new approaches for the analysis of hazardous chemicals in the food supply. We proposed to extend the QuEChERS approach to more pesticides, veterinary drugs and pol
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L51652 Fracture Behavior of Large Diameter Pipeline Girth Welds-Effect of Weld Metal Yield Strength. Pipeline Research Council International, Inc. (PRCI), 1992. http://dx.doi.org/10.55274/r0010131.

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This is a two-part study. See report L51712 for part two. The integrity of girth weld defects in gas transmission pipelines is ensured by non-destructive inspection procedures. The acceptance level of pipeline girth weld defects revealed by non-destructive testing is commonly based on workmanship quality control. Workmanship defect acceptance levels, however, are based on experience and are, by necessity, both arbitrary and often conservative. An alternative approach of defect acceptance in pipeline girth welds is based on the concept of fitness-for-purpose. This report describes the results o
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