Fig. 4: Mechanical cycling results.
From: Effects of multi-functional additives during foam extrusion of wheat gluten materials

a Compression curves for the WG/G, WG/G/ABC, and WG/G/ABC/5CA foams, inset showing the 0-10% strain region. b The compression strength (dashed curve) and elastic modulus (solid curve) of the WG/G/ABC/5CA foam as a function of compressive strain. Error bars represent ± 1 standard deviation. c Compressive stress versus compressive strain of the NBR (brown curves) and WG/G/ABC/5CA (green curves) samples. Dashed squares represent different behaviors at 30 and 50% strain. Inset shows the appearence of the samples (NBR is the black sample) before and after being compressed to 30 and 50%.