A novel and efficient computational peridynamic framework for modeling explosive blast effects on solid plates

• Published in: Computers & structures 2024-08, Vol.299, p.107381, Article 107381
• Main Author: Abdoh, D.A.
• Format: Article
• Language: English
• Subjects: Blast; Deformation; Explosions; Fracture; Peridynamics; Solid plates
• ISSN: 0045-7949
• DOI: 10.1016/j.compstruc.2024.107381

•A new peridynamic model is presented to study the explosive blast effects on solids.•Failure behaviors of steel and aluminum plates are investigated in explosions.•A parametric study is conducted to examine the impact of different blast parameters.•New guidelines are proposed to enhance the explosive blast resistance of solid plates. The paper presents a novel and efficient model to examine deformations and fractures in solid plates when exposed to explosive blast events under various scenarios and boundary conditions. The proposed model uses the peridynamic method to simulate the motion and damage of solid plate particles during explosions in a mesh-free scheme. The model’s validation with experimental results is essential to ensure that the proposed model can capture the actual behavior of solid plates in explosive blasts. The present study shows the following novelties: (1) A novel coupling strategy is presented, which integrates explosive blast loadings with the peridynamic method. Therefore, the model becomes capable of effectively capturing the interactions between explosive blasts and solid plates; (2) The proposed model demonstrates remarkable stability in modeling explosive blasts on solid plates, and it does not require refinement schemes nor adaptive modeling parameters such as adaptive timestep; (3) The peridynamic model overcomes the mesh-distortion issues commonly encountered in mesh-based models, particularly under extreme loading conditions; (4) The proposed model exhibits high efficiency, enabling fast and accurate simulations of solid plate behavior under explosive blast scenarios. The paper also presents a new parametric study that explores the failure behavior of solid plates during explosions.