Numerical Simulation of Thermal Response and Ablation Behavior of a Hybrid Carbon/Carbon Composite

作者：Zhang, Bai; Li, Xudong^*

来源：Applied Composite Materials, 2018, 25(3): 675-688.

DOI：10.1007/s10443-017-9645-1

• Hybrid C/C composite
• Ablation behavior
• Numerical simulation
• Thermophysical properties
• Moving boundary

The thermal response and ablation behavior of a hybrid carbon/carbon (C/C) composite are studied herein by using a numerical model. This model is based on the energy- and mass-conservation principles as well as on the calculation of the thermophysical properties of materials. The thermal response and ablation behavior are simulated from the perspective of the matrix and fiber components of a hybrid C/C composite. The thermophysical properties during ablation are calculated, and a moving boundary is implemented to consider the recession of the ablation surface. The temperature distribution, thermophysical properties, char layer thickness, linear ablation rate, mass flow rate of the pyrolysis gases, and mass loss of the hybrid C/C composite are quantitatively predicted. This numerical study describing the thermal response and ablation behavior provides a fundamental understanding of the ablative mechanism of a hybrid C/C composite, serving as a reference and basis for further designs and optimizations of thermoprotective materials.

• 出版日期2018-6
• 单位兰州理工大学