Why is the K preceding the KCV and KCU? Is it a normal notation? I have come accross this notation in the past and it was not clear to me why K CV term is used when Impact test is refered?
K is the common abbreviation for a fracture toughness parameter. For example, K1c, K1d, K1scc, etc. With the exception of J which is used when doing elastic-platic toughness characterization.