PSI - Issue 39

Yuri Petrov et al. / Procedia Structural Integrity 39 (2022) 552–559 Yuri Petrov/ Structural Integrity Procedia 00 (2019) 000 – 000

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Additionally, it was shown that a very simple discrete system – a linear oscillator – can also exhibit fracture delay effect when loaded with rectangular force pulses. This observation can serve as a motivation for establishing formal analogies between specimens with cracks and oscillators when fracture due to short pulse loads is considered: the cracked sample can be associated with some particular oscillator with calculated mass and spring stiffness.

Fig. 2. Dependence of load pulse duration on the oscillator failure time for a given pulse amplitude .

Acknowledgements The work was supported by Russian Foundation for Basic Research (19-31-60037 and 20-01-00291).

References

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