2013/10/01 by Blaise Bourdin, Jean-Jacques Marigo, Jean‐Jacques Marigo +2
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Brittleness #Chemistry #Composite material #Crystallography #Fracture (geology) #Fracture mechanics #Hexagonal crystal system #High-Velocity Impact and Material Behavior #Materials science #Mechanics #Nonlocal and gradient elasticity in micro/nano structures #Numerical methods in engineering #Physics #Quasistatic process #Rock Mechanics and Modeling #Shock (circulatory) #Thermal #Thermal shock #Thermodynamics #Thermoelastic and Magnetoelastic Phenomena #Toughness #cond-mat.mtrl-sci #cond-mat.soft
paper · pdf · doi:10.1103/physrevlett.112.014301
openalex publication_date 2013/10/01 · arxiv created 2013/11/28 · arxiv updated 2022/03/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the genesis and the selective propagation of complex crack networks induced by thermal shock or drying of brittle materials. We use a quasi-static gradient damage model to perform large scale numerical simulations showing that the propagation of fully developed cracks follows Griffith criterion and depends only on the fracture toughness, while crack morphogenesis is driven by the material's internal length. Our numerical simulations feature networks of parallel cracks and selective arrest in two dimensions and hexagonal columnar joints in three dimensions, without any hypotheses on cracks geometry and are in good agreement with available experimental results.