Videos

Videos of experimental ruptures

Full-field quantification of dynamic ruptures

The full-field behavior of dynamic ruptures is quantified by using ultrahigh-speed photography in combination with digital image correlation and highly tailored analysis (learn about the method here). The movies below are obtained for a supershear rupture propagating at 2.3 km/s.

Interface-parallel velocity of a supershear rupture

Interface-parallel velocity of a supershear rupture obtained with the ultrahigh-speed digital image correlation method. Rubino, V., Rosakis, A., & Lapusta, N. (2019, September 18). Interface-parallel velocity of a supershear rupture (Version 1.0). CaltechDATA. https://doi.org/10.22002/d1.1279. Modified after Rubino, Rosakis, Lapusta, Nature Communications (2017) DOI: 10.1038/ncomms15991.

Maximum shear stress of a supershear rupture

Temporal evolution of the maximum shear stress associated to a superstar rupture, obtained with the ultrahigh-speed digital image correlation technique. Rubino, V., Rosakis, A., .J, & Lapusta, N. (2019, September 13). Maximum shear stress (Version 1.0). CaltechDATA. https://doi.org/10.22002/d1.1278.

Capturing the evolution of dynamic friction

The evolution of friction is visualized by tracking in real time friction changes with slip and slip rate for spontaneously propagating dynamic ruptures. The movie below shows the friction measurements obtained for two experimental ruptures, based on our newly developed ultrahigh-speed technique to capture dynamic ruptures. The approach to quantify dynamic friction and the interpretation of the measurements is given here.

Evolution of dynamic friction

The movie shows the complex evolution of friction, characterized by initial velocity strengthening followed by a marked velocity weakening. Rubino, V. (2019, September 19). Evolution of dynamic friction (Version 1.0). CaltechDATA. https://doi.org/10.22002/d1.1281.

Visualization of pressure and shear shock fronts in viscoelastic materials

The movie below shows the formation of pressure and shear shock fronts for a rupture propagating in a viscoelastic material (PMMA) at a speed of 2.6 km/s.

Rupture displaying pressure and shear shock fronts

Temporal evolution of the volumetric strain rate. The full-field images show the formation of pressure and shear shock fronts. Credit: Gori, Rubino, Rosakis, Lapusta, Nature Communications (2018) DOI: 10.1038/s41467-018-07139-4.

Vito Rubino