  We demonstrate with experiments that wrinkling in stretched latex sheets
occur over finite strains, and that their amplitudes grow and then decay to
zero over a greater range of applied strains compared with linear elastic
materials. The wrinkles occur provided the sheet is sufficiently thin compared
to its width, and only over a finite range of length-to-width ratios. We show
with simulations that the Mooney-Rivlin hyperelastic model describes the
observed growth and decay of the wrinkles in our experiments. The decrease of
wavelength with applied tension is found to be consistent with a
far-from-threshold scenario proposed by Cerda and Mahadevan in 2003. However,
the amplitude is observed to decrease with increasing tensile load, in contrast
with the prediction of their original model. We address the crucial assumption
of {\it collapse of compressive stress}, as opposed to collapse of compressive
strain, underlying the far-from-threshold analysis, and test it by measuring
the actual arc-length of the stretched sheet in the transverse direction and
its difference from the width of a planar projection of the wrinkled shape. Our
experiments and numerical simulations indicate a complete {\it collapse of the
compressive stress}, and reveal that a proper implementation of the
far-from-threshold analysis is consistent with the non-monotonic dependence of
the amplitude on applied tensile load observed in experiments and simulations.
Thus, our work support and extend far-from-threshold analysis to the stretching
problem of rectangular hyperelastic sheets.
