Innovative Reinforcement Mesh Patterns for Crack Growth Mitigation in Concrete: A Fracture Mechanics Analysis Using Abaqus

Concrete, despite its widespread use in construction, remains inherently susceptible to cracking under mechanical and environmental loads. These cracks, if left uncontrolled, can propagate and lead to structural failure, compromising both safety and durability. Traditional reinforcement methods, such as orthogonal rebar grids, have been effective to a degree, but recent advances in computational mechanics suggest that alternative mesh geometries could offer superior crack control. This study explores the potential of innovative reinforcement patterns—specifically, non-orthogonal rebar arrangements to alter crack propagation paths and reduce fracture parameters in concrete structures. Using Abaqus, a leading finite element analysis (FEA) software, we simulate crack growth under various loading conditions and evaluate how different reinforcement angles and densities influence fracture behaviour. The ultimate goal is to propose optimized mesh designs that can be practically implemented to enhance the crack resistance of reinforced concrete. Construction crews can adapt to the new patterns with minimal additional training, as the installation process differs only in the angular placement of rebars rather than their fundamental arrangement. This makes the transition from traditional to optimized reinforcement both economically viable and practically feasible for most construction projects.

کلیدواژه ها:

Crack propagation ، Reinforcement optimization ، Stress intensity factors ، Energy dissipation ، Tet mesh ، J integral