Constant strain rate compression of bovine cortical bone on the Split-Hopkinson Pressure Bar.

摘要: Abstract Cortical bone is a visco-elastic material which implies that strain rate will affect its response. Although the Split-Hopkinson Pressure Bar an accepted technique for determining dynamic compressive properties of cortical it has been shown compression does not remain constant throughout duration classical experiment with uniform striker. This raises concerns as to measurement smeared responses. paper presents shaped striker whereby incident pulse can be attain bovine bone. Shaped strikers offer benefits such re-usability and increased test repeatability. A comparison stress–strain–strain responses attained through experiments shows shape stress–strain curves from conventional adversely affected in portion where varies. The response corridors two tests are similar, however ultimate affected. It concluded history should presented since instantaneous likely contributor potential constitutive models.