Results 21 to 30 of about 238,632 (305)
Propagating Stress Waves During Epithelial Expansion
Physical Review Letters, 2015 Coordinated motion of cell monolayers during epithelial wound healing and tissue morphogenesis involves mechanical stress generation. Here we propose a model for the dynamics of epithelial expansion that couples mechanical deformations in the tissue to contractile activity and polarization in the cells.
Banerjee, Shiladitya +2 more
openaire +4 more sources
Oscillatory wave fronts in chains of coupled nonlinear oscillators [PDF]
, 2003 Wave front pinning and propagation in damped chains of coupled oscillators are studied. There are two important thresholds for an applied constant stress $F$: for $|F| F_{cs}$ (static Peierls stress) there are only stable moving wave fronts.
A. Carpio +21 more
core +3 more sources
Investigation into stress wave propagation in metal foams
EPJ Web of Conferences, 2015 The aim of this study is to investigate stress wave propagation in metal foams under high-speed impact loading. Three-dimensional Voronoi model is established to represent real closed-cell foam. Based on the one-dimensional stress wave theory and Voronoi
Li Lang, Xue Pu, Chen Yue
doaj +1 more source
Wave mitigation in ordered networks of granular chains [PDF]
, 2013 We study the propagation of stress waves through ordered 2D networks of granular chains. The quasi-particle continuum theory employed captures the acoustic pulse splitting, bending, and recombination through the network and is used to derive its ...
Daraio, Chiara +2 more
core +3 more sources
Research on Laplace transform of stress wave propagation relaxation function in multi-layer media
Case Studies in Construction Materials, 2023 There are some difficulties in solving the theory of stress wave propagation in multi-layer media. To solve the problem of stress wave propagation in multi-layer media under the impact load, this paper theoretically makes further derivation and ...
Dai-lin Li +5 more
doaj +1 more source
Dynamic effects of deep-hole cumulative blasting in coal seam and its application
工程科学学报, 2016 A model of cumulative blasting was established to study the mechanism of crack propagation and permeability increasing under cumulative blasting in a coal seam.
GUO De-yong +3 more
doaj +1 more source
Journal of Materials Research and Technology, 2023 To explore the dynamic compression behavior and damage evolution characteristics of “rigid-flexible coupling” surrounding rock supporting structure. Split Hopkinson pressure bar (SHPB) was used to carry out constant amplitude cyclic bi-directional impact
Rongzhou Yang, Ying Xu
doaj +1 more source
Ultrasonic metal sheet thickness measurement without prior wave speed calibration [PDF]
, 2013 Conventional ultrasonic mensuration of sample thickness from one side only requires the bulk wave reverberation time and a calibration speed. This speed changes with temperature, stress, and microstructure, limiting thickness measurement accuracy ...
Dixon, S. +4 more
core +1 more source
Advances in Civil Engineering, 2020 In the drilling and blasting excavation of underground rock mass, the stress wave produced by the blasting holes usually propagates in the form of cylindrical wave, while the rock mass surrounding the underground engineering is initially subjected to the
Qian Dong, XinPing Li, JunHong Huang
doaj +1 more source
Crack propagation and coalescence mechanism of double-hole cumulative blasting in coal seam
工程科学学报, 2020 This paper focuses on the radius of coal failure zones under cumulative blasting with shaped charge. Based on the analysis of the mutual superposition effect of the explosion stress waves during the simultaneous detonation of two blastholes, a numerical ...
De-yong GUO +3 more
doaj +1 more source