Monitoring Chemo-Mechanical Fracture Behavior through Engineering Geophysics Experiments

2020 ◽  
Author(s):  
J. Ding ◽  
S. Mighani ◽  
A.C. Clark ◽  
T. Vanorio
Keyword(s):  
Fracture Behavior ◽  
Mechanical Fracture ◽  
Engineering Geophysics

scholarly journals Numerical modeling of hydro-mechanical fracture behavior

2002 ◽  
pp. 293-299 ◽  
Author(s):  
C Guiducci ◽  
A Pellegrino ◽  
J Radu ◽  
F Collin ◽  
R Charlier
Keyword(s):  
Numerical Modeling ◽  
Fracture Behavior ◽  
Mechanical Fracture

Electric Dipole Model and Computer Simulation of the Fracture Behavior of a Conductive Crack in a Dielectric Material

2004 ◽  
Vol 855 ◽  
Author(s):  
Tianhong Wang ◽  
Xiaosheng Gao
Keyword(s):  
Fracture Toughness ◽  
Lead Zirconate Titanate ◽  
Electric Dipole ◽  
Fracture Behavior ◽  
Domain Switching ◽  
Dielectric Material ◽  
Dipole Model ◽  
Ferroelectric Ceramics ◽  
Mechanical Fracture ◽  
Microstructural Modeling

ABSTRACTFracture tests on poled and depoled lead zirconate titanate (PZT) ceramics indicate that purely electric fields are able to propagate the conductive cracks (notches) and fracture the samples. To understand the fracture behavior of conducting cracks in ferroelectric ceramics, an electric dipole model is proposed, in which a discrete electric dipole is used to represent the local spontaneous polarization and the force couples are used to represent the local strains. The electric dipole model provides basic solutions for microstructural modeling. The microstructural modeling is based on a domain switching mechanism. The domain structure is simulated with a grid of points where polarizations and strains vary with the applied loads. As a first step study, the microstructural modeling is conducted for a dielectric material with a conductive crack. The simulation result explains why the electric fracture toughness is much higher than the mechanical fracture toughness.

Fracture Behavior of AZ31-xCa (x=0, 0.7, 2.0 wt.%) Extrudes during Compression

2010 ◽  
Vol 48 (1) ◽  
pp. 85-89 ◽  
Author(s):  
Na Eun Kang ◽  
Chang Dong Yim ◽  
Bong Sun You ◽  
Ik Min Park
Keyword(s):  
Fracture Behavior
Sign in / Sign up

Export Citation Format

Share Document