scholarly journals Dynamic fatigue of cracked piezoelectric ceramics under electromechanical loading: three-point bending test and finite element analysis

2009 ◽  
Vol 4 (4) ◽  
pp. 719-729 ◽  
Author(s):  
Yasuhide Shindo ◽  
Fumio Narita ◽  
Mitsuru Hirama
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Piezoelectric Ceramics ◽  
Bending Test ◽  
Element Analysis ◽  
Three Point Bending ◽  
Electromechanical Loading ◽  
Dynamic Fatigue

Influence of notch radius on the fracture load of piezoelectric ceramics

2015 ◽  
Vol 29 (06n07) ◽  
pp. 1540006 ◽  
Author(s):  
Dae Weon Kim ◽  
Dong Chul Shin ◽  
Yeong Min Park ◽  
Tae Gyu Kim
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Energy Density ◽  
Electric Fields ◽  
Piezoelectric Ceramics ◽  
Fracture Load ◽  
Bending Test ◽  
Curvature Radius ◽  
Fracture Parameter ◽  
Element Analysis

The influence of root radius of notch applied fracture load on piezoelectric ceramics under various conditions of electric fields was studied using the three-point bending test. And the linear finite element analysis associated with energy density of crack as a feasible parameter of fracture was performed with piezoelectricity. It was found that the fracture load is decreased according to reduction of the curvature radius of notch but the finite element analysis showed reverse result, the fracture load in case of the crack is increased. The energy density of crack as the governing fracture parameter was finally introduced and discussed.

Experimental and Finite Element Analysis Approach for Fatigue of Unidirectional Fibrous Composites

2011 ◽  
Vol 87 ◽  
pp. 106-112 ◽  
Author(s):  
Amiri Asfarjani Alireza ◽  
Adibnazari Sayid ◽  
Reza Kashyzadeh Kazem
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Testing ◽  
Micromechanical Model ◽  
Weight Ratio ◽  
Life Time ◽  
Fibrous Composites ◽  
Element Analysis ◽  
Three Point Bending ◽  
The Finite Element Analysis

Fibrous composites are finding more and more applications in aerospace, automotive, and naval industries. They have high stiffness and strength to weight ratio and good rating in regards to life time fatigue. Investigating mechanical behavior under dynamic loads to replace this material is very important. In the present article, investigate Fatigue of Unidirectional Fibrous Composites by using finite element analysis. So, to achieve this purpose Firstly, modeling fiber and matrix in separate case and simulated semi actual conditions, attained S-N curve of fiber and matrix and after that by using micromechanical model of combination fiber and matrix can approach S-N curve of Unidirectional Fibrous Composites. Finally, Comparisons of the finite element analysis of Ansys and the experimental predictions indicate based on three point bending fatigue testing that the results are satisfactorily in good agreement with each other which approves the power law assumption in the model.

Flexural Behavior of Sandwich Structure with AA 8011 Honeycomb Core and Al 1100 Face Skins

2018 ◽  
Vol 10 (6) ◽  
Author(s):  
M.R. Ashok ◽  
M. Manojkumar ◽  
P.V. Inbanaathan ◽  
R. Shanmuga Prakash
Keyword(s):  
Finite Element Analysis ◽  
Sandwich Structure ◽  
Flexural Behavior ◽  
Bending Test ◽  
Honeycomb Core ◽  
Element Analysis ◽  
Three Point Bending ◽  
The Core ◽  
Flexural Testing ◽  
The Face

This paper details the fabrication and flexural testing of sandwich structure with Aluminium honeycomb core with Aluminium face skins. The material for the face skin is aluminium 1100 and for the core is Aluminium AA8011. The cell size obtained by fabrication is 7mm. The specimen is prepared and tested as per the ASTM standard C393/C393M-11 on a three-point bending test to obtain the ultimate core shear strength and the face skin strength. Finite element analysis is also carried out to validate the experimental test.

Research on the Effects of Friction Coefficient on Three-Point Bending by Finite Element Analysis

2015 ◽  
Vol 12 (12) ◽  
pp. 5139-5143
Author(s):  
Xiangguo Zhai ◽  
Fu Zhang ◽  
Hongwei Zhao ◽  
Cong Li ◽  
Zhaoxin Xu ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Friction Coefficient ◽  
Element Analysis ◽  
Three Point Bending
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