PreprintArticleVersion 1This version is not peer-reviewed
Discrete modeling of projectile penetration into calcareous sand subgrade runway pavement structure and genetic algorithm optimization for critical striking velocity
Peng, C.; Huang, J.; Sun, X.; Nan, Y.; Chen, Y.; Chen, K.; Feng, J. Discrete modeling of projectile penetration into calcareous sand subgrade runway pavement structure and genetic algorithm optimization for critical striking velocity. Preprints2024, 2024092074. https://doi.org/10.20944/preprints202409.2074.v1
APA Style
Peng, C., Huang, J., Sun, X., Nan, Y., Chen, Y., Chen, K., & Feng, J. (2024). Discrete modeling of projectile penetration into calcareous sand subgrade runway pavement structure and genetic algorithm optimization for critical striking velocity. Preprints. https://doi.org/10.20944/preprints202409.2074.v1
Chicago/Turabian Style
Peng, C., Kun Chen and Jun Feng. 2024 "Discrete modeling of projectile penetration into calcareous sand subgrade runway pavement structure and genetic algorithm optimization for critical striking velocity" Preprints. https://doi.org/10.20944/preprints202409.2074.v1
Abstract
As an important civil and military infrastructure, airport runway pavement is faced up with threats from cluster munitions, since it is vulnerable to projectile impact with internal explosion. Aiming at the damage assessment of island airport runway pavement under impact, this work dealt with discrete modeling of rigid projectile penetration into concrete pavement and calcareous sand subgrade multi-layer structure. First, Discrete Element Method (DEM) is introduced to model concrete and calcareous sand granular material features like cohesive fracture and strain hardening due to compression, with mesoscale constitutive laws governing the normal and shear interactions between adjacent particles. Second, sequent DEM simulations of uniaxial and triaxial compression were performed to calibrate the DEM parameters for pavement concrete as well as subgrade calcareous sand. Piror to multi-layer structure investigations, penetration into sole concrete or calcareous sand is validated in terms of projectile deceleration and depth of penetration (DOP) with relative error
Keywords
runway pavement structure; discrete element method; depth of penetration; genetic algorithm; critical striking velocity
Subject
Engineering, Mechanical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
