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Energy absorption, toughness and other mechanical properties of the web. (a) Energy absorbed by the web (defined as the area under the force–displacement curve) and the corresponding capture thread toughness (defined as the area under the stress–strain curve for a single spiral thread), (b) force of the web at break, and (c) displacement of the web at break compared for six material laws shown in figure 3a. (Online version in colour.)
