Transient Elastodynamic Crack Growth in Functionally Graded Materials

2008 ◽  
Author(s):  
Vijaya B. Chalivendra ◽  
Glaucio H. Paulino ◽  
Marek-Jerzy Pindera ◽  
Robert H. Dodds ◽  
Fernando A. Rochinha ◽  
...  
Keyword(s):  
Crack Growth ◽  
Functionally Graded Materials ◽  
Functionally Graded ◽  
Graded Materials

scholarly journals Mixed-Mode Crack Propagation in Functionally Graded Materials

2005 ◽  
Vol 492-493 ◽  
pp. 409-414 ◽  
Author(s):  
Jeong Ho Kim ◽  
Glaucio H. Paulino
Keyword(s):  
Numerical Simulation ◽  
Crack Propagation ◽  
Crack Growth ◽  
Functionally Graded Materials ◽  
Mixed Mode ◽  
Fracture Criterion ◽  
Functionally Graded ◽  
Graded Materials ◽  
Mixed Mode Crack ◽  
Specific Fracture

This paper presents numerical simulation of mixed-mode crack propagation in functionally graded materials by means of a remeshing algorithm in conjunction with the finite element method. Each step of crack growth simulation consists of the calculation of the mixedmode stress intensity factors by means of a non-equilibrium formulation of the interaction integral method, determination of the crack growth direction based on a specific fracture criterion, and local automatic remeshing along the crack path. A specific fracture criterion is tailored for FGMs based on the assumption of local homogenization of asymptotic crack-tip fields in FGMs. The present approach uses a user-defined crack increment at the beginning of the simulation. Crack trajectories obtained by the present numerical simulation are compared with available experimental results.

Fatigue Crack Growth Analysis Models for Functionally Graded Materials

2008 ◽  
Author(s):  
Serkan Dag ◽  
Baris Sabuncuoglu ◽  
Bora Yildirim ◽  
Glaucio H. Paulino ◽  
Marek-Jerzy Pindera ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Functionally Graded Materials ◽  
Growth Analysis ◽  
Functionally Graded ◽  
Graded Materials ◽  
Analysis Models

Cohesive Modeling of Dynamic Crack Growth in Homogeneous and Functionally Graded Materials

2008 ◽  
Author(s):  
Zhengyu Zhang ◽  
Glaucio H. Paulino ◽  
Waldemar Celes ◽  
Glaucio H. Paulino ◽  
Marek-Jerzy Pindera ◽  
...  
Keyword(s):  
Crack Growth ◽  
Functionally Graded Materials ◽  
Functionally Graded ◽  
Dynamic Crack ◽  
Graded Materials ◽  
Dynamic Crack Growth ◽  
Cohesive Modeling
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