Paja_patak
Student
Hello
I am trying to perform a post-failure analysis within Abaqus 18 using coupled SPH-FEM. I'm having trouble defining the contact between finite elements and SPH particles. The analysis should consist of two steps: the first step is the subsidence of the terrain, the second step is the seismic effect, i.e. acceleration. I encounter a problem with contacts already in the first step. Material behaviour is defined with Mohr-Coulomb material model. In the upper zones, in the middle, the finite elements are converted into particles, while below and on the sides general explicit contact between finite elements and particles is set (since Abaqus does not transfer constraints from FEM to SPH particles, but it is regulated by contacts) as can be seen in the first Figure below. It looks like side contacts are not working properly, as the model is collapsing from the sides, as can be seen in the second and third Figures. .Cae and .Jnl files are attached. How can I resolve this issue?
Thanks!
I am trying to perform a post-failure analysis within Abaqus 18 using coupled SPH-FEM. I'm having trouble defining the contact between finite elements and SPH particles. The analysis should consist of two steps: the first step is the subsidence of the terrain, the second step is the seismic effect, i.e. acceleration. I encounter a problem with contacts already in the first step. Material behaviour is defined with Mohr-Coulomb material model. In the upper zones, in the middle, the finite elements are converted into particles, while below and on the sides general explicit contact between finite elements and particles is set (since Abaqus does not transfer constraints from FEM to SPH particles, but it is regulated by contacts) as can be seen in the first Figure below. It looks like side contacts are not working properly, as the model is collapsing from the sides, as can be seen in the second and third Figures. .Cae and .Jnl files are attached. How can I resolve this issue?
Thanks!