Results 11 to 20 of about 146,644 (262)
Structure parameter optimization and bearing limit analysis of the expansion unit of three-roller tube expander [PDF]
Royal Society Open Science, 2020 The critical technical issues for the structure design of three-roller tube expander were first studied and analysed in this paper. Then, the major design parameters of the expansion unit structure and the bearing limit of 12¼″ three-roller tube expander
Gang Bi +4 more
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Behaviour of expansion tubes under impact load: Deformation mode and mechanical response
Materials & Design, 2023 The expansion tube is a promising energy absorption structure in spacecraft and airplanes, where it is often exposed to impact stress. Despite prior studies on the deformation mode of expansion tubes have been conducted, the majority of them have relied ...
Zizhen Qi +5 more
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Dynamic Response and Energy Absorption Characteristics of Expansion Tubes Under Axial Impact
IEEE Access, 2020 The expansion tube is normally used in impact-resistant components, owing to the stable expansion force, and high specific energy-absorption capacity. This paper reports the deformation mechanism and energy absorption characteristics of expansion tube ...
Zizhen Qi +4 more
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COPI vesicle transport is a common requirement for tube expansion in Drosophila. [PDF]
PLoS ONE, 2008 BACKGROUND: Tube expansion defects like stenoses and atresias cause devastating human diseases. Luminal expansion during organogenesis begins to be elucidated in several systems but we still lack a mechanistic view of the process in many organs.
Satish Arcot Jayaram +5 more
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Rarefied, superorbital flows in an expansion tube [PDF]
International Journal of Numerical Methods for Heat & Fluid Flow, 2004 A free-piston driven expansion tube [X1 at the Centre for Hypersonics, University of Queensland] and its instrumentation is described. The facility was used to generate rarefied flows at speeds of approximately 10 km/s. Although the flow in the tube itself was in the continuum regime, rarefied flow conditions were achieved by allowing the flow at the ...
Wheatley, V. +5 more
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IEEE Access, 2020 Electromagnetic tube expansion has been given much attention due to its superior cold forming properties. The traditional electromagnetic coil is of single structure, which results in substantial tube wall thinning and mechanical strength reduction. This
Li Qiu +7 more
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Microstructure analysis and crack nucleation in TWIP steel tube at expansive deformation
Materials Research Express, 2021 The expansion test of twinning induced plastic (TWIP) steel tube was carried out at room temperature. Cracks appeared inside the tube edge when TWIP steel tube expands by 15.6%.
ChunYuan Liu +6 more
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eLife, 2023 Membrane expansion integrates multiple forces to mediate precise tube growth and network formation. Defects lead to deformations, as found in diseases such as polycystic kidney diseases, aortic aneurysms, stenosis, and tortuosity.
Leonard Drees +4 more
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AIP Advances, 2020 An expansion tube is an ideal energy absorber which dissipates kinetic energy through plastic deformation and friction. There is an urgent need to understand the influence of key parameters such as the semi-angle, tube material, and friction coefficient ...
Zizhen Qi, Yuwu Zhang, Yuliang Lin
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Expansion of oval tubes: prediction and experiment [PDF]
ESAFORM 2021, 2021 The manufacturing of oval tubes for automotive components from sheets consists of several steps, from the flat sheet to a tube with expanded ends. It involves roll-bending of tubes, welding and several expansion processes with segmented tools. Forming steps in this process are subject to springback after the release of tools. Finite-element-simulations
Markus Stennei +6 more
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