Influence of stress-induced Austenite to Martensitic (red-colored region) phase transformation on stress-strain hysteresis behavior in a pseudoelastic wire.

(The wire is loaded uniaxially and the resulting stress-strain response is given.)

Phase transformation is reversible back to the parent Austenite phase upon unloading. The strain is fully recovered.

(The wire is eventually unloaded uniaxially and the resulting stress-strain response is given.)

Martensitic detwinning through ledge propagation during applied load, and resulting macroscopic behavior in twinned Martensitic material.

(The wire is loaded and forcefully unloaded uniaxially and the stress-strain response is given.)

(Mode-I loading on a square plate with notch)

Stiffness influences elastic wave propagation.

Elastic waves ripples at different velocities. The right one has twice the modulus of the left one. Waves propagate faster in a stiffer medium. 

Wave velocity in solids, v = (Y/ρ)1/2 where Y is Young's modulus &  ρ is the density of the material, is well known. However,  simulated these waves in solids before?

Loading rates influence the crack patterns. 

At higher loading rates, the material tends to dissipate more energy by creating more surface resulting in crack branching.

(Mode-I loading on a rectangular plate with notch.)

Higher the elastic waves, the material creates 

more surface to dissipate the energy faster resulting in crack branching

(Mode-II loading on a square plate with notch; Shear strain evolution is shown.)

.The thermal diffusion in a vertical bar from top to bottom is described by a particle-based model.

(θ=100°C @ top; θ=25°C @ bottom at start T0.)