Nonlinear Mechanical Properties of Composites (Linked with Ansy LS-DYNA)

Deformation analysis using nonlinear Finite Element Method in Ansys LS-DYNA was performed for polymer materials with phase-separated structures obtained using mean-field methods such as SUSHI. The effects of differences in phase-separated structure on mechanical properties were evaluated, and changes in stress–strain behavior were confirmed

Use Cases Highlights

Evaluation of the effect of phase-separated structures on mechanical properties
Nonlinear analysis using Ansys LS-DYNA
Export capability from J-OCTA to nonlinear finite element software

Comparison of phase-separated structures

Three types of phase-separated structures — bicontinuous, spherical dispersed, and complex structures from the SUSHI mean-field method — are shown, all at the same volume fraction, for mechanical property evaluation.

Comparison diagram of phase-separated structures

Deformation calculation using nonlinear Finite Element Method

Deformation analysis using Ansys LS-DYNA was performed on the phase-separated structure obtained by the SUSHI mean-field method. Time evolution calculations allow visual confirmation of deformation behavior.

Snapshots of deformation calculation

Evaluation of stress–strain curves

Stress–strain curves for the entire material in each structure are shown. Differences in mechanical response due to differences in phase-separated structures are clearly apparent.