221 citations · 1.3k across the 31 of their papers we have counts for
31 papers
Beyond linear stability: Heterogeneity-induced fingering of crack fronts
Manish Vasoya, Laurent Ponson, Veronique Lazarus
We investigate the stability of elastic interfaces beyond the linear regime by considering penny-shaped crack fronts propagating through toughness heterogeneities. Using fracture m…
Wrapping and unwrapping multifractal fields
Samy Lakhal, Laurent Ponson, Michael Benzaquen +1
We develop a powerful yet simple method that generates multifractal fields with fully controlled scaling properties. Adopting the Multifractal Random Walk (MRW) model of Bacry et a…
How criticality meets bifurcation in compressive failure of disordered solids
Ashwij Mayya, Estelle Berthier, Laurent Ponson
Continuum mechanics describes compressive failure as a standard bifurcation in the response of a material to an increasing load: damage, which initially grows uniformly in the mate…
Damage spreading in quasi-brittle disordered solids: II. What the statistics of precursors teach us about compressive failure
Estelle Berthier, Ashwij Mayya, Laurent Ponson
We investigate numerically and theoretically the precursory intermittent activity characterizing the preliminary phase of damage accumulation prior to failure of quasi-brittle soli…
Adaptation of the tapered double cantilever beam test for the measurement of fracture energy and its variations with crack speed
Aditya Vasudevan, Thiago Melo Grabois, Guilherme Chagas Cordeiro +3
In this work we present the design of a new test geometry inspired by the Tapered Double Cantilever Beam (TDCB) specimen that is shown to provide an improved characterization of th…
Effective toughness of heterogeneous materials with rate-dependent fracture energy
Gabriele Albertini, Mathias Lebihain, François Hild +2
We investigate dynamic fracture of heterogeneous materials experimentally by measuring displacement fields as a rupture propagates through a periodic array of obstacles of controll…