A simple model for necking and detachment of subducting slabs is developed to include the coupling between grain-sensitive rheology and grain-size evolution with damage. Necking is triggered by thickened buoyant crust entrained into a subduction zone, in which case grain damage accelerates necking and allows for relatively rapid slab detachment, i.e., within 1 My, depending on the size of the c...

Abstract In order to study the influence of arrangement thermal insulation floor on and mechanical properties hollow slab, ABAQUS is used establish model analysis behavior slab. By investigating distribution temperature, heat flux, damage deformation floor, mid-span deflection other characteristics section, it concluded that although transmission can be effectively obstructed by will transferre...

Abstract The article studies the punching shear capacity of reinforced concrete slabs by simulation method. Based on Concrete Damage Plasticity (CDP) constitute model, model is established in Abaqus software. was verified comparison tests. parametric were implemented to investigate effect and steel strength resistance slab. slab also calculated formulas proposed available standards. Obtained re...

We present the first fundamental simulation method for the determination of crater morphology due to femtosecond-pulse laser damage. To this end we have adapted the particle-in-cell (PIC) method commonly used in plasma physics for use in the study of laser damage and developed the first implementation of a pair potential for PIC codes. We find that the PIC method is a complementary approach to ...

In present study, a mathematical model of the vehicle–floating slab track (FST) interaction is established to investigate the coupled behaviour of vehicle–track system. The FST is modelled as the double Euler -Bernoulli beam including the rail and slab. The railway vehicle is simplified as a multi-rigid-body model. The wheel–rail interface is treated using a nonlinear Hertzian contact model, co...

Large increases in traffic loads led to extensive fatigue damage existing orthotropic steel roadway slabs of bridges. Reinforced concrete bridges and conventional composite are less susceptible but considerably heavier. With the so-called ortho-composite-slab (OC-slab) a lightweight robust construction is currently being developed as an alternative methods. The basic ideas for design explained ...

In order to find out the influence of subgrade frost heave on deformation track structure and irregularity high-speed railways, a nonlinear damage finite element model for China Railway Track System III (CRTSIII) slab was established based constitutive theory concrete plastic damage. The analysis under different conditions focused on, amplitude limit put forward according characteristics interl...