Ubiquitiform Crack of Quasi-Brittle Materials under Dynamic Loading

MING Dehan; OU Zhuocheng; YANG Xiao; DUAN Zhuoping; HUANG Fenglei

doi:10.11858/gywlxb.20190754

Volume 33 Issue 6

Nov 2019

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Chinese Journal of High Pressure Physics > 2019 > 33(6): 064103.

MING Dehan, OU Zhuocheng, YANG Xiao, DUAN Zhuoping, HUANG Fenglei. Ubiquitiform Crack of Quasi-Brittle Materials under Dynamic Loading[J]. Chinese Journal of High Pressure Physics, 2019, 33(6): 064103. doi: 10.11858/gywlxb.20190754

Citation:

MING Dehan, OU Zhuocheng, YANG Xiao, DUAN Zhuoping, HUANG Fenglei. Ubiquitiform Crack of Quasi-Brittle Materials under Dynamic Loading[J]. Chinese Journal of High Pressure Physics, 2019, 33(6): 064103. doi: 10.11858/gywlxb.20190754

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Ubiquitiform Crack of Quasi-Brittle Materials under Dynamic Loading

doi: 10.11858/gywlxb.20190754

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Received Date: 03 Apr 2019
Rev Recd Date: 24 Apr 2019

Abstract

Abstract

To investigate the ubiquitiformal characteristic of the crack extension path in a heterogeneous quasi-brittle material under the dynamic tensile loadings, a ubiquitiformal model is developed in this paper, and the calculated numerical results for the ubiquitiform complexity are in agreement with the previous experiments. It is found that such a crack extension path is indeed of a ubiquitiform, and its complexity decreases with the increase of the loading strain-rate. Moreover, it is also found that the complexity is independent of the randomness of the spatial distribution of the dynamic tensile load-carrying capacity of the material under consideration, and the complexity decreases with increasing shape parameter m of the Weibull distribution. Thus, this work can be taken as a basis for analyzing further the mechanism as well as the ubiquitiformal characteristic of the crack profile in a quasi-brittle material under the dynamic tensile loadings.
- quasi-brittle materials,
- ubiquitiform crack,
- strain-rate,
- complexity

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References(27)

References

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Ubiquitiform Crack of Quasi-Brittle Materials under Dynamic Loading

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