English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Dynamic Mode III interfacial fracture in a dissimilar square-cell lattice,composed of two contrasting mass-spring lattice half-planes joined at aninterface, is considered. The fracture, driven by a remotely applied load, isassumed to propagate at a constant speed along the interface. The choice of theload allows the solution of the problem to be matched with the crack tip fieldfor a Mode III interfacial crack propagating between two dissimilar continuouselastic materials. The lattice problem is reduced to a system of functionalequations of the Wiener-Hopf type through the Fourier transform. The derivedsolution of the system fully characterises the process. We demonstrate theexistence of trapped vibration modes that propagate ahead of the crack alongthe interface during the failure process. In addition, we show as the crackpropagates several preferential directions for wave radiation can emerge in thestructured medium that are determined by the lattice dissimilarity. The energyattributed to the wave radiation as a result of the fracture process is studiedand admissible fracture regimes supported by the structure are identified. Theresults are illustrated by numerical examples that demonstrate the influence ofthe dissimilarity of the lattice on the existence of the steady failure modesand the lattice dynamics.

Dynamic phenomena and crack propagation in dissimilar elastic lattices