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Dynamic crack propagation along elastic interfaces in double-cantilever beams under high loading rates

journal contribution
posted on 11.01.2022, 13:35 by Tianyu Chen, Bo Yuan, Christopher HarveyChristopher Harvey, Kun Zhang, Simon WangSimon Wang, Vadim SilberschmidtVadim Silberschmidt, Bingchen Wei
The dynamic mode-I energy release rate of cracks propagating along elastic interfaces in double-cantilever beams under high loading rates is derived analytically for the first time by accounting for structural vibration, wave propagation, and the Doppler effect along with the assumption of crack-tip energy conservation. The developed theory can be used to study the “stick-slip” crack propagation behavior commonly observed in experiments, a progression of crack initiation, propagation, arrest and re-initiation. In addition, the developed theory can be applied to measure crack initiation toughness as well as crack arrest toughness. The developed theory is verified against results from finite-element-method simulations of two experimental cases under high loading rates, demonstrating the excellent ability of the developed theory in capturing the crack propagation behavior as well as the ability in assessing dynamic mode-I energy release rate.

Funding

National Natural Science Foundation of China (Grant No. 51401028, No. 51271193, No. 11790292)

Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB22040303)

Innovation Program (237099000000170004)

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering
  • Mechanical, Electrical and Manufacturing Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

Journal of Aerospace Engineering

Publisher

American Society of Civil Engineers

Version

AM (Accepted Manuscript)

Publisher statement

This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at [URL/link of abstract in the ASCE Library or Civil Engineering Database].”

Acceptance date

28/12/2021

ISSN

0893-1321

Language

en

Depositor

Dr Christopher Harvey. Deposit date: 7 January 2022