Crack propagation modeling in Functionally Graded Materials using Moving Mesh technique and interaction integral approach

2021 ◽  
pp. 114005
Author(s):  
Domenico Ammendolea ◽  
Fabrizo Greco ◽  
Paolo Lonetti ◽  
Raimondo Luciano ◽  
Arturo Pascuzzo
Keyword(s):  
Crack Propagation ◽  
Functionally Graded Materials ◽  
Functionally Graded ◽  
Moving Mesh ◽  
Integral Approach ◽  
Graded Materials ◽  
Interaction Integral ◽  
Propagation Modeling ◽  
Mesh Technique

scholarly journals Study on Thermally Induced Crack Propagation Behavior of Functionally Graded Materials Using a Modified Peridynamic Model

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Fei Wang ◽  
Yu’e Ma ◽  
Yanning Guo ◽  
Wei Huang
Keyword(s):  
Fracture Toughness ◽  
Crack Propagation ◽  
Functionally Graded Materials ◽  
Initial Temperature ◽  
Functionally Graded ◽  
Thermal Crack ◽  
Graded Materials ◽  
Ceramic Fracture ◽  
Thermally Induced ◽  
Peridynamic Model

Peridynamic (PD) theory is used to study the thermally induced cracking behavior of functionally graded materials (FGMs). A modified thermomechanical peridynamic model is developed. The thermal crack propagation of a ceramic slab in quenching is calculated to validate the modified PD model. The results predicted by the modified PD model agree with previously published numerical and experimental ones. Compared with the original PD model, the calculation accuracy of the modified PD model for thermal cracking is improved. The thermal cracking in FGMs is also simulated. The effects of material shape, initial temperature, and ceramic fracture toughness on thermal crack propagation behaviors are studied. It can be found that the thermal cracks in FGMs are still in periodical and hierarchical forms. The metal materials in FGMs can prevent crack initiation and arrest the long cracks. The crack number tends to be increased with the increasing initial temperature, while the strengthened ceramic fracture toughness can decrease it.

Analysis of Crack Propagation in Alumina-Glass Functionally Graded Materials

2008 ◽  
pp. 379-380
Author(s):  
V. Cannillo ◽  
L. Lusvarghi ◽  
T. Manfredini ◽  
M. Montorsi ◽  
C. Siligardi ◽  
...  
Keyword(s):  
Crack Propagation ◽  
Functionally Graded Materials ◽  
Functionally Graded ◽  
Graded Materials
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