Semnan University Press Mechanics of Advanced Composite Structures 2423-4826 14 1 2027 04 01 2D Bond-Based Peridynamic Simulation of Phase Transformation in 3Y-TZP Dental Ceramics Using ABAQUS 27 39 10508 10.22075/macs.2026.35720.1751 EN Alireza Moradkhani Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, 1678815811, Iran Mohammad Hoseinpour Gollo Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, 1678815811, Iran 0000-0003-4633-1318 Carla Castiglia Gonzaga School of Health Sciences, Graduate Program in Dentistry, Universidade Positivo, Curitiba, PR, 81280-330, Brazil Journal Article 2024 10 23 In this research, the fracture behavior of 3 mol% yttria-stabilized tetragonal zirconia polycrystals (3Y-TZP) dental ceramics is investigated. The focus is on the tetragonal (<em>t</em>) to monoclinic (<em>m</em>) phase transformation using ABAQUS and bond-based peridynamics. We conducted two-dimensional simulations of a single grain undergoing uniform dilational expansion within a homogeneous <em>m</em>-phase environment. The effects of transformation time, biaxial stress, and strains on fracture were analyzed. It was found that increasing stress in the surrounding <em>t</em>-phase elevated the elastic strain energy associated with the transformation. By varying stress from -1.1 GPa to 400 MPa, elastic strain energy started to decrease from 3.41, 3.32, 3.11, and 2.85 pJ at fracture strain values of <em>S</em>₀= 0.00711, 0.00553, 0.00395, and 0.00237, respectively. These correspond to reductions of 83%, 87%, 90%, and 96%. In addition, damage fractions increased from 0.001, 0.002, 0.003, and 0.004 to 0.005, 0.011, 0.022, and 0.058, respectively. This demonstrates the significant impact of applied stress on the fracture mechanics of 3Y-TZP. Moreover, increasing the elemental parameter <em>S</em>₀ from 0.00237 to 0.00711 in the simulations corresponds to a considerable decrease in defect density, resulting in a substantial increase in the total energy required for material division from 0.25 to 2.2 J/m². https://macs.semnan.ac.ir/article_10508_62586771d3229bff8eae64a469aa77f3.pdf