Chang, CSWang, TKSluys, LJvan Mier, JGM2024-04-262024-04-262002-0110.1016/S0013-7944(02)00070-Xhttps://hdl.handle.net/20.500.14394/4986fracture, damage mechanics, concrete, micro-structural model, stress-strain relationship,Fracture modeling using a micro-structural mechanics approach - I. Theory and formulationarticle