Dynamic crack propagation and its interaction with micro-cracks in an impact problem

Adem Candaş*, Erkan Oterkus, Cevat Erdem Imrak

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

29 Atıf (Scopus)


The dynamic fracture behavior of brittle materials that contain micro-level cracks should be examined when material subjected to impact loading. We investigated the effect of micro-cracks on the propagation of macro-cracks that initiate from notch tips in the Kalthoff-Winkler experiment, a classical impact problem. To define predefined micro-cracks in three-dimensional space, we proposed a two-dimensional micro-crack plane definition in the bond-based peridynamics (PD) that is a non-local form of classical continuum theory. Randomly distributed micro-cracks with different number densities in a constant area and number in expending area models were examined to monitor the toughening of the material. The velocities of macro-crack propagation and the time required for completing fractures were considered in several predefined micro-cracks cases. It has been observed that toughening mechanism is only initiated by exceeding a certain number of micro-cracks; therefore, there is a positive correlation between the density of predefined micro-cracks and macro-crack propagation rate and, also, toughening mechanism.

Orijinal dilİngilizce
Makale numarası011003
DergiJournal of Engineering Materials and Technology
Basın numarası1
Yayın durumuYayınlandı - 1 Oca 2021

Bibliyografik not

Publisher Copyright:
© 2020 Thieme Medical Publishers, Inc.. All rights reserved.

Parmak izi

Dynamic crack propagation and its interaction with micro-cracks in an impact problem' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

Alıntı Yap