Berger, J. B.
Wadley, H. N. G.
McMeeking, R. M.
Article History
Received: 27 April 2016
Accepted: 7 December 2016
First Online: 20 February 2017
Competing interests
: The material geometry identified in this work to achieve the theoretical bounds in performance has been included in a Patent Cooperation Treaty (PCT/US2015/010458) by Nama Development, LLC (DE), which is majority-owned by J.B.B.