Mixed Mode Crack Initiation and Growth in Notched Semi-circular Specimens: Three Dimensional Finite Element Analysis

2012 ◽  
Vol 4 (2) ◽  
pp. 34-44 ◽  
Author(s):  
H.E.M. Sallam ◽  
A.A. Abd-Elhady
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Crack Initiation ◽  
Mixed Mode ◽  
Three Dimensional ◽  
Element Analysis ◽  
Mixed Mode Crack ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

Three-Dimensional Finite Element Analysis of a Mixed Mode I/II Fracture Test Specimen: Asymmetric Four-Point Shear Specimen

2017 ◽  
Author(s):  
Mark Cohen ◽  
Xin Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Test Specimen ◽  
Mixed Mode ◽  
Three Dimensional ◽  
Mode I ◽  
Fracture Test ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

In this paper, extensive three-dimensional finite element analysis is conducted to study the asymmetric four-point shear (AFPS) specimen: a widely used mixed mode I/II fracture test specimen. Complete solutions of fracture mechanics parameters KI, KII, KIII, T11, and T33 have been obtained for a wide range of a/W and t/W geometry combinations. It is demonstrated that the thickness of the specimen has a significant effect on the variation of fracture parameter values. Their effects on crack tip plastic zone are also investigated. The results presented here will be very useful for the toughness testing of materials under mixed-mode loading conditions.

Three-Dimensional Finite Element Analysis of Mixed-Mode Interfacial Delamination for the Pull-Off Test

2007 ◽  
Author(s):  
Zuo Sun ◽  
David A. Dillard
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Model ◽  
Mixed Mode ◽  
Three Dimensional ◽  
Element Model ◽  
Element Analysis ◽  
Interfacial Delamination ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

A three-dimensional nonlinear finite element analysis model is presented to study mixed-mode interfacial delamination for a pull-off test consisting of a thin film strip debonded from a glass substrate. Since the strain energy release rates of all three modes (Mode I, Mode II, and Mode III) and the mode mixities vary along the width of the debond front, prediction of the in-situ shape of the debond front remains an interesting and challenging topic. A cohesive zone model is incorporated into the three-dimensional finite element model to predict the interfacial crack propagation profile for the film deformation regime ranging from bending plate to stretching membrane. This three-dimensional finite element model is found to provide additional insights for interfacial delamination for the pull-off test.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Sign in / Sign up

Export Citation Format

Share Document