Dynamic Fracture Analysis of Functional Gradient Material Coating Based on the Peridynamic Method
Abstract
:1. Introduction
2. The PD Formulation for FGMs
2.1. Basic Review of PD Theory for Elastic Brittle Materials
2.2. PD Model for FGM
2.2.1. Determination of Micro-Modulus Function c
2.2.2. Determination of the Interaction Function f
2.2.3. Critical Relative Elongation s0
3. Convergence Studies in Dynamic Crack Branching of FGMs
3.1. Problem Setting
3.2. δ-Convergence of FGM Samples
3.3. m-Convergence of FGM Samples
3.4. Δt-Convergence of FGM Samples
4. Simulation of FGM Coating—Substrate
4.1. Problem Setting
4.2. Crack Propagation and Deflection of the FGM Coating Corresponding to Different Gradient Forms
4.3. Crack Propagation and Deflection of FGMs Corresponding to Different Coating Thicknesses
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Material | Elastic Modulus E (GPa) | Density ρ (kg m−3) | Poisson Ratio ν | Fracture Toughness KIC (MPa·m1/2) |
---|---|---|---|---|
Lower FGM l | 4 | 1175 | 0.33 | 1.4 |
Upper FGM | 10 | 1750 | 0.33 | 2.2 |
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Zhang, Y.; Cheng, Z.; Feng, H. Dynamic Fracture Analysis of Functional Gradient Material Coating Based on the Peridynamic Method. Coatings 2019, 9, 62. https://doi.org/10.3390/coatings9010062
Zhang Y, Cheng Z, Feng H. Dynamic Fracture Analysis of Functional Gradient Material Coating Based on the Peridynamic Method. Coatings. 2019; 9(1):62. https://doi.org/10.3390/coatings9010062
Chicago/Turabian StyleZhang, Yu, Zhanqi Cheng, and Hu Feng. 2019. "Dynamic Fracture Analysis of Functional Gradient Material Coating Based on the Peridynamic Method" Coatings 9, no. 1: 62. https://doi.org/10.3390/coatings9010062