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Analysis of failure waves with an elasto-statistical-brittle model
Jiang ZJ; Xia MF; Wang HY(汪海英)
Source Publication13th International Conference on Fracture 2013, ICF 2013
Conference Name13th International Conference on Fracture 2013, ICF 2013
Conference DateJune 16, 2013 - June 21, 2013
Conference PlaceBeijing, China
AbstractThe origin and propagation mechanism of failure waves poses a challenge to our conventional understanding of dynamic failure. In this paper, the failure wave is attributed to the catastrophic rupture in brittle materials and an elasto-statistical-brittle (ESB) model is developed to describe the catastrophic behavior. In the ESB model, the disordered heterogeneity of brittle solids at mesoscopic scale is characterized with statistical description of the shear strength of mesoscopic units. The evolution of microdamage is controlled by the shear strength and the shear stress applied, and eventually induces catastrophic rupture in brittle materials. Considering the failure wave as a propagating boundary of catastrophic failure, the propagation of the failure wave is predicated with wave theory. Several predicted speeds of failure waves are in good agreement with experimental observations. Copyright © (2013) by International Conference on Fracture.
KeywordBrittleness Crack propagation Shear stress Superconducting materials Catastrophic failures Catastrophic rupture Failure waves Heterogeneity Mesoscopic scale Propagation mechanism Statistical descriptions Wave speed
Indexed ByEI
Document Type会议论文
AffiliationChinese Academy of Sciences, Institute of Mechanics, 100190, China
Recommended Citation
GB/T 7714
Jiang ZJ,Xia MF,Wang HY. Analysis of failure waves with an elasto-statistical-brittle model[C],2013:3647-3653.
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