1. Discrete element method to simulate continuous material by using the cohesive beam model;André;Computer Methods in Applied Mechanics and Engineering,2012
2. Multifunctional metallic hollow sphere structures: manufacturing, properties and application;Augustin,2009
3. Blottiere, Y., Chapuis, P., Valaud, M., 1994. Hollow spheres manufactured in synthetic materials, manufacturing process and application. URL: http://www.google.com/patents/EP0438352B1?cl=en. eP Patent 0,438,352.
4. The propagation of a brittle crack;Broberg;Arkiv Fysik,1960
5. Experimental Investigation and Discrete Element Modelling of Composite Hollow Spheres Subjected to Dynamic Fracture;Coré;International Journal of Polymer Science,2017