scholarly journals Thermal fracture behavior of functionally graded materials – a brief review and some prospects

2019 ◽  
Vol 233 ◽  
pp. 032013
Author(s):  
Simin Liu ◽  
Huihua Zhang ◽  
Anqi Xiong ◽  
Qiang Liu
Keyword(s):  
Functionally Graded Materials ◽  
Fracture Behavior ◽  
Functionally Graded ◽  
Thermal Fracture ◽  
Graded Materials

Analysis of Fracture Behavior of Metal/Ceramic Functionally Graded Materials under Thermal Stress

2013 ◽  
Vol 750-752 ◽  
pp. 2200-2205 ◽  
Author(s):  
Cheng Fan
Keyword(s):  
Functionally Graded Materials ◽  
Fracture Behavior ◽  
Crack Formation ◽  
Ceramic Coating ◽  
Process Analysis ◽  
Failure Process ◽  
Functionally Graded ◽  
Graded Materials ◽  
Crack Morphology ◽  
Metal Ceramic

In this presented work, a coupled thermo-mechanical model is employed to analyze the thermo-mechanical behavior of ceramic functionally graded materials (FGMs) and the crack formation and propagation process of ceramic coating was simulated step in step and step by step using the RFPA (Realistic Failure Process Analysis) 2D-Thermo code. The thermal shock fracture behavior is discussed based on the basis of the simulated crack morphology and elucidated the mechanism of crack deformation and crack propagation. The state change from compression to tension whose magnitude is large enough to exceed the tension strength of ceramic causes the vertical crack. The numerical results agreed well with the experimental results in the previous literature.

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