User login

You are here

step

Xinlei_Wu's picture

Periodic displacement loads decompose with 4 load steps in Abaqus

Choose a channel featured in the header of iMechanica: 

 I want to simulate a dynamic motion of a pipe under periodic displacement loads.

Anna G's picture

Young Modulus as a function of step

Hello,

Does anybody know how change part material during caluculations (between steps) in ABAQUS.

I need to modifie Young modulus of one part in my calculations after first phase of loading.

Thank You in advance 

Anna

 

Wei Hong's picture

Dynamics of terraces on a silicon surface due to the combined action of strain and electric current

A (001) surface of silicon consists of terraces of two variants, which have an identical atomic structure, except for a 90° rotation. We formulate a model to evolve the terraces under the combined action of electric current and applied strain. The electric current motivates adatoms to diffuse by a wind force, while the applied strain motivates adatoms to diffuse by changing the concentration of adatoms in equilibrium with each step. To promote one variant of terraces over the other, the wind force acts on the anisotropy in diffusivity, and the applied strain acts on the anisotropy in surface stress. Our model reproduces experimental observations of stationary states, in which the relative width of the two variants becomes independent of time. Our model also predicts a new instability, in which a small change in experimental variables (e.g., the applied strain and the electric current) may cause a large change in the relative width of the two variants.

Subscribe to RSS - step

Recent comments

More comments

Syndicate

Subscribe to Syndicate