Numerical study on dynamic compression of concrete based on meso-scale particle element modeling and fractal theory

Zhenfu Chen; Qicheng Luo; Zhenlun Wang; Du Deng

doi:10.1117/12.2642601

28 July 2022 Numerical study on dynamic compression of concrete based on meso-scale particle element modeling and fractal theory

Zhenfu Chen, Qicheng Luo, Zhenlun Wang, Du Deng

Author Affiliations +

Proceedings Volume 12303, International Conference on Cloud Computing, Internet of Things, and Computer Applications (CICA 2022); 1230321 (2022) https://doi.org/10.1117/12.2642601
Event: International Conference on Cloud Computing, Internet of Things, and Computer Applications, 2022, Luoyang, China

Abstract

In order to quantitatively describe the development of multiple cracks in concrete during dynamic compression, a meso-scale particle element modeling is established to numerically simulate the SHPB stamping test. The box dimension is used to calculate and simulate the development of cracks in the specimen. The fractal characteristics quantitatively described the cracks in the specimen and the region of interest during dynamic compression. Combined with the internal damage variables, the indexes to quantitatively describe the multi crack propagation and aggregate crushing of concrete under the action of high strain rate are proposed, which provides a method to further quantitatively describe the influence of multi crack propagation on the dynamic improvement mechanism of concrete.

Citation Download Citation

Zhenfu Chen, Qicheng Luo, Zhenlun Wang, and Du Deng "Numerical study on dynamic compression of concrete based on meso-scale particle element modeling and fractal theory", Proc. SPIE 12303, International Conference on Cloud Computing, Internet of Things, and Computer Applications (CICA 2022), 1230321 (28 July 2022); https://doi.org/10.1117/12.2642601

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