Extended Data Fig. 2: Schematics of mechanical test setups: boundary conditions and loading conditions.
a, Axial translation fixture for standard tests with displacement control. Left and right: for results in left and right of Fig. 6e, respectively. Middle: for Fig. 5. b, Dedicated fixture for rotational test with free translation57. This fixture is used for obtaining results in Figs. 2, 6d, Extended Data Fig. 8, and Supplementary Fig. S4. c, Alternative fixtures for linear displacement with free rotation. Left: Supplementary Fig. S5. Middle: Supplementary Fig. S6. Right: Fig. 3 and Supplementary Fig. S7.
