Results 171 to 180 of about 721,658 (313)

Key Technology and Experimental Study on Module Sealing

open access: yesShiyou jixie, 2018
The following problems often occur during the operation of offshore sand control:when the working string runs from the wellhead, the setting tool with the seal element cannot reach the predetermined position through the seal tube and seal is often failed.
Cheng Wenjia   +5 more
doaj  

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Contact Pressure Distribution Optimization

open access: yes, 2016
A novel design technique that is used to optimize contact pressure distribution was introduced and investigated. The primary objective of this design tool, called the Predicted Displacement Method, was to provide a calculated contact surface shape ...
Hric, George Richard III
core  

Analysis on the Influence of Swelling on Interference of Stator and Rotor of Progressing Cavity Pump

open access: yesShiyou jixie, 2018
In downhole environment, the conventional oil progressing cavity pump may experience uneven deformation of stator rubber owing to swelling, which is an indispensable factor in stator and rotor design.
Zhang Qiang   +4 more
doaj  

Experimental Investigation of Temperature and Contact Pressure Influence on HFI Welded Joint Properties. [PDF]

open access: yesMaterials (Basel), 2022
Egger C   +5 more
europepmc   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Effects of Contact Pressure in Reflectance Photoplethysmography in an In Vitro Tissue-Vessel Phantom. [PDF]

open access: yesSensors (Basel), 2021
May JM   +5 more
europepmc   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Contact area, pressure distribution and mechanical stability in external arthrodesis of the ankle joint

open access: yes, 2009
The ankle joint is often affected by arthritis, giving a joint that is painful, stiff, and restricts movement. This can result in a huge loss of mobility for the sufferer.
Connor, Chris   +4 more
core  

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