Abstract

Mechanical properties such as stress-strain relationships, plastic set and fracture behaviour were studied for chrome and formaldehyde tanned collagen fibres. The stress-strain and fracture behaviour were found to be different from that of untanned collagen fibres, whereas the plastic set showed only marginal differences. The morphology of the fractured ends of the fibres tested at different strain rates was studied using scanning electron microscopy. An attempt has been made to clarify the different patterns of the cross-linked collagen fibres.