Dynamic Compression of a SiC Foam
Eligiusz Postek1, Tomasz Sadowski2
1Institute of Fundamental Technological Research, Department of Information and Computational Science, Polish Academy of Sciences, Pawińskiego St. 5B, 02-106 Warsaw, Poland.
Materials (Basel, Switzerland)
|December 11, 2022
Summary
Silicon carbide foam exhibits different failure modes under compression. Slow compression causes widespread damage, while fast compression leads to dynamic fragmentation, revealing distinct material behaviors.
Area of Science:
- Materials Science
- Mechanical Engineering
- Computational Mechanics
Background:
- Silicon carbide foam serves as a reinforcement in interpenetrated composites.
- Understanding material behavior under dynamic loading is crucial for structural integrity.
Purpose of the Study:
- To analyze the compression behavior of silicon carbide foam.
- To investigate failure modes, microcrack nucleation, growth, and fragmentation using peridynamics.
Main Methods:
- The peridynamics (PD) method was employed for the analysis.
- Simulations covered both low-speed and high-speed compression scenarios.
Main Results:
- Under slow compression, damage distributed throughout the specimen without significant shape change.
- Fast compression resulted in dynamic fragmentation of the silicon carbide foam sample.
Conclusions:
- Silicon carbide foam shows distinct responses to low- and high-speed compression.
- Peridynamics effectively models the complex failure mechanisms, including fragmentation.
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