Fig. 9: FWHM of the spider dragline silk fiber as a function of strain under different strain rates.

FWHM calculated from the azimuthal intensity WAXS profiles of the radially integrated (210) peak in the simultaneous WAXS-tensile test under different RHs: a RH0%, b RH43%, c RH75%, and d RH97%. The blue, green, and red dots denote strain rates of 3.3 × 10−3 s−1, 3.3 × 10−2 s−1, and 3.3 × 10−1 s−1, respectively.