In numerical simulations where complex fracture behavior plays a prominent role in the material’s mechanical behavior, particle methods are an attractive computational tool since they adequately accommodate arbitrary discontinuities. However, existing either limited their constitutive flexibility, like Discrete Element Method (DEM), or prone to instabilities, Smoothed Particle Hydrodynamics (SP...

To analyse the feasibility of low-grade highway as a launch site in military applications and improve pavement crushing technology civilian applications, this study investigates evolution characteristics under impact load, including deflection, crack, energy, via continuum–discontinuum element method (CDEM). end, paper proposes an energy statistics algorithm, correctness is verified. Then, quar...

Many problems in geotechnical engineering involve large movements or rotations, examples include natural processes such as landslides, and man-made earthmoving pile penetration. While the use of numerical modelling, primarily finite element method (FEM), is now routine design analysis, limitations conventional FEMs soon become apparent when attempting to model deformation problems. For this rea...

Contact detection algorithm is a critical constituent of discontinuous calculation method, the accuracy contact directly affects simulation results. Algorithms for between irregular blocks are difficult to achieve because complexity geometry and diversity types. A half-space based proposed, it can accurately identify relationship convex polygonal polyhedral blocks. The proposed approach impleme...

Unreinforced masonry structures are susceptible to man-made hazards such as impact and blast loading. However, the literature on this subject mainly focuses wall behavior, there is a knowledge gap about behavior of arches under high-strain In context, research aims investigate both quasistatic response dry-joint stone arch using discrete element method. Rigid blocks with noncohesive joint model...

Abstract It is of great theoretical significance and engineering application to investigate the influence detonation interval on dynamic response underground fortification under blasting loading. First, a numerical simulation blast loading carried out based continuum-discontinuum element method. Then, displacement characteristic analyzed. Finally, fracture The results indicate that increasing t...

Evaluation of the sliding stability concrete dams requires use numerical tools not only able to simulate coupled hydromechanical behavior but also adequately represent foundation discontinuities and specific features dam foundations. The formulation a three-dimensional (3D) small displacement finite element model based on interface elements is presented. In this model, hydraulic simulated assum...

analysis and prediction of structural response to static or dynamic loading requires prediction of concrete response tovariable load histories. the constitutive equations for the mechanical behavior of concrete capable of seeing damage effects or crack growth procedure under loading/unloading/reloading was developed upon micro-plane framework. the proposed damage formulation has been built on t...