Results 11 to 20 of about 2,623,768 (284)

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

A Study of Static and Dynamic Mechanical Behavior of the Substrate in Ultrasonic Consolidation [PDF]

open access: yes, 2006
A new 2-D FEM model is developed for a fundamental study of the time dependent mechanical behavior of the substrate in ultrasonic consolidation. The simulation shows that for a given vibration condition, the amplitude of contact friction stress and ...
Li, Leijun, Zhang, Chunbo
core   +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

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

Contact effects in bending affecting stress and formability [PDF]

open access: yes, 2010
If a strip is pulled over a curved tool there is a contact stress acting on the strip. This contact stress changes the stress state in the material, which is analysed with a simple model.
Boogaard, A.H. van den, Emmens, W.C.
core   +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

Effects of stretching on the frictional stress of rubber [PDF]

open access: yes, 2017
In this paper, we report on new experimental results on the effects of in-plane surface stretching on the friction of Poly(DiMethylSiloxane) (PDMS) rubber with smooth rigid probes.
Chateauminois, Antoine   +2 more
core   +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

Macroscopic model with anisotropy based on micro-macro informations [PDF]

open access: yes, 2014
Physical experiments can characterize the elastic response of granular materials in terms of macroscopic state-variables, namely volume (packing) fraction and stress, while the microstructure is not accessible and thus neglected.
Kumar, Nishant   +2 more
core   +5 more sources

Effective indenter radius and frame compliance in instrumented indentation testing using a spherical indenter [PDF]

open access: yes, 2009
We introduce a novel method to correct for imperfect indenter geometry and frame compliance in instrumented indentation testing with a spherical indenter.
Kang, Ingeun   +3 more
core   +1 more source

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