نتایج جستجو برای: prestress

تعداد نتایج: 566  

Journal: :Coastal Engineering Proceedings 2000

Journal: :Journal of Materials Processing Technology 2021

The aim of the present study is to tailor laser shock peening-induced residual stresses by applying defined prestress. For this purpose, elastic prestress introduced during peening application and subsequently released. influence on resulting investigated experimentally a four-point bending device that allows prestressing specimen peening. Furthermore, semi-analytical model peening, extended co...

2010
Xiao Lu Ares J. Rosakis Nadia Lapusta

[1] Seismic inversions show that earthquake risetimes may be much shorter than the overall rupture duration, indicating that earthquakes may propagate as self‐healing, pulse‐like ruptures. Several mechanisms for producing pulse‐like ruptures have been proposed, including velocity‐weakening friction, interaction of dynamic rupture with fault geometry and local heterogeneity, and effect of bimate...

2009
Silvano Erlicher Frédéric Bourquin

The vibrating behaviour of thin structures is affected by prestress states. Hence, the effects of thermal prestress are important research subjects in view of ambient vibration monitoring of civil structures. The interaction between prestress, geometrically non-linear behaviour, as well as damping and its coupling with the aforementioned phenomena has to be taken into account for a comprehensiv...

2003
KAREL MATOU GEORGE J. DVORAK G. J. Dvorak

A prestressing procedure is proposed for reduction of stress concentrations at the leading edges of adhesive bondlines in composite skin/ ange assemblies. A Ž niteelementanalysisof a speciŽ c geometryof such an assembly is presented,whichaccounts for nonlinear viscoelastic deformation of the adhesive. Design diagrams based on elastic analysis are constructed for evaluation of prestress forces ...

Journal: :International Journal of Solids and Structures 1973

Journal: :American Journal of Physiology-Cell Physiology 2010

Journal: :Biophysical journal 2009
S Féréol R Fodil V M Laurent M Balland B Louis G Pelle S Hénon E Planus D Isabey

This study aims at improving the understanding of mechanisms responsible for cell sensitivity to extracellular environment. We explain how substrate mechanical properties can modulate the force regulation of cell sensitive elements primarily adhesion sites. We present a theoretical and experimental comparison between two radically different approaches of the force regulation of adhesion sites t...

2012
Yongyun Hwang Abdul I. Barakat

Transmission of mechanical stimuli through the actin cytoskeleton has been proposed as a mechanism for rapid long-distance mechanotransduction in cells; however, a quantitative understanding of the dynamics of this transmission and the physical factors governing it remains lacking. Two key features of the actin cytoskeleton are its viscoelastic nature and the presence of prestress due to actomy...

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