The role of substrate pre-stretch in post-wrinkling bifurcations.

  title={The role of substrate pre-stretch in post-wrinkling bifurcations.},
  author={Anesia Auguste and Lihua Jin and Zhigang Suo and Ryan C. Hayward},
  journal={Soft matter},
  volume={10 34},
When a stiff film on a soft substrate is compressed, the surface of the film forms wrinkles, with tunable wavelengths and amplitudes that enable a variety of applications. As the compressive strain increases, the film undergoes post-wrinkling bifurcations, leading to period doubling and eventually to formation of localized folds or ridges. Here we study the post-wrinkling bifurcations in films on pre-stretched substrates. Through a combination of experiments and simulations, we demonstrate that… CONTINUE READING