Heat Conduction and Cracking of Functionally Graded Materials Using an FDEM-Based Thermo-Mechanical Coupling Model
Source abstract
Abstract
In this paper, the steady-state and transient heat transfer processes of functionally graded materials (FGMs) are analyzed using a coupled thermo-mechanical model in a GPU parallel multiphysics finite–discrete element software, namely MultiFracS. First, the coupled model to handle the heat transfer problem of heterogeneous materials is verified. Then, the advantages and disadvantages of FGMs and composite materials in response to thermal shock loads are compared and the results indicate that FGMs can overcome extreme environments better than composite materials. Finally, the influence of the geometric distribution characteristics of the double-edge cracks in the gradient material plate on the crack propagation is analyzed. The simulation results show that the interaction between the cracks affects the crack propagation path under the thermal load. The inclination angle and spacing of double-edge cracks greatly influence crack propagation. Specifically, a larger inclination angle and spacing can lead to a smaller crack propagation angle. The approach in this paper provides a new quantitative tool for investigating the thermal, elastic, and cracking of functionally graded materials.
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Research context
OpenAlex topics: Numerical methods in engineering · Composite Structure Analysis and Optimization · Composite Material Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Engineering, China University of Geosciences, Wuhan 430079, China
Changjiang River Scientific Research Institute, Wuhan 430010, China
International Joint Research Center for Deep Earth Drilling and Resource Development, China University of Geosciences, Wuhan 430074, China
HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute, Shenzhen 440300, China
Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong 999077, China
Funding
National Natural Science Foundation of China · the GHfund A · Project of Hetao Shenzhen-Hong Kong Science and Technology Innovation Cooperation Zone
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