Fracture growth criterion for poroelastic media

2018 ◽  
Author(s):  
Mukamay Ramazanov ◽  
Vitaly Borisov ◽  
Boris Kritsky ◽  
Evgeny Savenkov
Keyword(s):  
Poroelastic Media ◽  
Growth Criterion ◽  
Fracture Growth

Risk analisys of self-induced hydraulic fracture growth in vertical plane

2019 ◽  
Vol 6 ◽  
pp. 50-53
Author(s):  
A.R. Davletova ◽  
◽  
A.I. Fedorov ◽  
G.A. Shchutsky ◽  
◽  
...  
Keyword(s):  
Hydraulic Fracture ◽  
Vertical Plane ◽  
Fracture Growth

CHEMICALLY ASSISTED FRACTURE GROWTH IN HYDROTHERMAL SYSTEMS: EXPERIMENTAL RESULTS

2017 ◽  
Author(s):  
Owen A. Callahan ◽  
◽  
Peter Eichhubl ◽  
Jon E. Olson ◽  
Nicholas C. Davatzes
Keyword(s):  
Hydrothermal Systems ◽  
Experimental Results ◽  
Fracture Growth ◽  
Assisted Fracture

Finite Element Analysis of the Distributed Vibration Absorbers for Structural Noise Control

2005 ◽  
Author(s):  
Ashwini Gautam ◽  
Chris Fuller ◽  
James Carneal
Keyword(s):  
Finite Element ◽  
Numerical Model ◽  
Base Plate ◽  
Element Model ◽  
Fe Model ◽  
Vibration Absorbers ◽  
Element Analysis ◽  
Poroelastic Media ◽  
Hexahedral Elements ◽  
Component Models

This work presents an extensive analysis of the properties of distributed vibration absorbers (DVAs) and their effectiveness in controlling the sound radiation from the base structure. The DVA acts as a distributed mass absorber consisting of a thin metal sheet covering a layer of acoustic foam (porous media) that behaves like a distributed spring-mass-damper system. To assess the effectiveness of these DVAs in controlling the vibration of the base structures (plate) a detailed finite elements model has been developed for the DVA and base plate structure. The foam was modeled as a poroelastic media using 8 node hexahedral elements. The structural (plate) domain was modeled using 16 degree of freedom plate elements. Each of the finite element models have been validated by comparing the numerical results with the available analytical and experimental results. These component models were combined to model the DVA. Preliminary experiments conducted on the DVAs have shown an excellent agreement between the results obtained from the numerical model of the DVA and from the experiments. The component models and the DVA model were then combined into a larger FE model comprised of a base plate with the DVA treatment on its surface. The results from the simulation of this numerical model have shown that there has been a significant reduction in the vibration levels of the base plate due to DVA treatment on it. It has been shown from this work that the inclusion of the DVAs on the base plate reduces their vibration response and therefore the radiated noise. Moreover, the detailed development of the finite element model for the foam has provided us with the capability to analyze the physics behind the behavior of the distributed vibration absorbers (DVAs) and to develop more optimized designs for the same.

Characterization of Tack Strength Based on Cavity-Growth Criterion

Langmuir ◽  
2016 ◽  
Vol 32 (14) ◽  
pp. 3525-3531 ◽  
Author(s):  
Kosuke Takahashi ◽  
Yuichiro Yamagata ◽  
Kazuaki Inaba ◽  
Kikuo Kishimoto ◽  
Shiori Tomioka ◽  
...  
Keyword(s):  
Cavity Growth ◽  
Growth Criterion ◽  
Strength Based

Fracture Growth in 2 d Elastic Networks with Born Model

1989 ◽  
Vol 10 (1) ◽  
pp. 7-13 ◽  
Author(s):  
H Yan ◽  
G Li ◽  
L. M Sander
Keyword(s):  
Elastic Networks ◽  
Born Model ◽  
Fracture Growth
Sign in / Sign up

Export Citation Format

Share Document