The investigation of non-Fourier thermal shock fracture behavior in multi-crack auxetic honeycomb structures(HSs)is presented.By employing a non-Fourier heat conduction model,the corresponding temperature and thermal stress fields are estab-lished.Subsequently,a thermal stress intensity factor(TSIF)model for the auxetic HSs,accounting for multi-crack interactions,is developed.Finally,using the fracture-based failure criterion,the non-Fourier multi-crack critical temperature of the auxetic HSs is determined.This investigation thoroughly examines the effects of the non-Fourier effect(NFE),auxetic property,crack spacing,and crack location on the thermal shock frac-ture behavior of the auxetic HSs.Results indicate that a stronger NFE leads to weaker thermal shock resistance in auxetic HSs.Regardless of the presence of the NFE,the auxetic property consistently increases the multi-crack critical temperature of the HSs.Additionally,the interaction of multi-crack inhibits thermal shock crack propagation in HSs.
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