Results 11 to 20 of about 669,241 (267)

Measuring the micromechanical properties of oesophageal mucosa with atomic force microscopy

open access: yesBiosurface and Biotribology, 2020
The micromechanical properties of soft tissue can be used as markers for the physiological state and function of the tissue. Deep understanding of the micromechanics of soft tissue, such as the oesophagus, is of great significance to the design of ...
Chengxiong Lin, Jingyang Xie, Wei Li
doaj   +1 more source

Effect of Electrical Contact on the Contact Residual Stress of a Microrelay Switch [PDF]

open access: yesSensors, 2007
This paper investigates the effect of electrical contact on the thermal contactstress of a microrelay switch. A three-dimensional elastic-plastic finite element model withcontact elements is used to simulate the contact behavior between the microcantilever beamand the electrode.
Yung-Chuan Chen   +3 more
openaire   +3 more sources

Research on performances of speed regulating mechanism of mine-used permanent magnet speed regulator

open access: yesGong-kuang zidonghua, 2018
Structure and principles of mine-used permanent magnet speed regulator were introduced. A sinusoidal-based speed regulating groove was designed and contact stress of the groove was analyzed by finite element method.
WANG Lei   +3 more
doaj   +1 more source

Instability-Associated Changes in Contact Stress and Contact Stress Rates Near a Step-Off Incongruity [PDF]

open access: yesThe Journal of Bone & Joint Surgery, 2008
Intra-articular fractures can result in articular surface incongruity and joint instability, both of which can lead to posttraumatic osteoarthritis. The purpose of this study was to quantify changes in contact stresses and contact stress rates in incongruous human cadaveric ankles that were either stable or unstable.
Todd O, McKinley   +3 more
openaire   +2 more sources

Estimation Method of Micropitting Life from S-N Curve Established by Residual Stress Measurements and Numerical Contact Analysis

open access: yesTribology Online, 2019
Micropitting is a type of rolling contact fatigue (RCF) associated with rough surfaces and severe lubrication conditions. In the present study, we developed an estimation method for micropitting life.
Naoya Hasegawa   +4 more
doaj   +1 more source

Reducing Contact Stress of the Surface by Modifying Different Hardness of Femoral Head and Cup in Hip Prosthesis

open access: yesFrontiers in Mechanical Engineering, 2021
The wear of hip prosthesis due to applied load and sliding distance during the patient's daily activity cannot be avoided. Wear causes osteolysis or metallosis due to the wear debris produced by the wear process.
Eko Saputra   +5 more
doaj   +1 more source

Contact stresses in point frogs [PDF]

open access: yesE3S Web of Conferences, 2020
The methodology for calculating the contact stress state for various contact types of frogs and wheel is presented. The magnitudes of contact stresses in the frogs can be calculated according to the Hertz-Belyaev method, taking into account certain evaluating factors.
Glusberg Boris   +3 more
openaire   +2 more sources

Effect of Contact Geometry on the Contact Stresses in a Flat with Round Edge Contact

open access: yesFrattura ed Integrità Strutturale, 2019
The blade-disc dovetail interface in an aero-engine compressor is characterized by a non-uniform pressure distribution which can be obtained by an equivalent flat with round edge-on-plate configuration. The contact tractions for a mating pair are affected by many parameters which include, contact geometry, loading conditions, and material properties ...
Dhaka, Pankaj, Prakash, Raghu Vasu
openaire   +5 more sources

Influence of tooth flank modification on tooth surface damage of conical involute gears

open access: yesNihon Kikai Gakkai ronbunshu, 2015
The conical involute gears have been applied to automotive parts such as 4WD transfer. The conical gear pair has characteristic large ease-off and this is equivalent to meshing of cylindrical gears which has large crowning for lead direction ...
Kunihiko MORIKAWA   +3 more
doaj   +1 more source

Numerical and experimental research of helical gear contact stress considering the influence of friction

open access: yesFrontiers in Mechanical Engineering, 2022
Helical gears are widely used in various mechanical transmissions. Thus, analysing gear contact stresses is crucial to improve the fatigue limit and life of gears. In this paper, the contact stress of helical gear is analyzed by finite element simulation
Xiaopeng Yang   +5 more
doaj   +1 more source

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