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Top: Simulation of the surface of a 3D compressed soft solid layer with perfectly ordered I-shape (left) and Y-shape (right) sulcus or deformation patterns with alternating orientation. Bottom: Depth-averaged energy distributions of the I and Y patterns. [T. Tallinen, J. S. Biggins, and L. Mahadevan, Phys. Rev. Lett. 110, 024302 (2013)] |


