Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
K-resistance curves for human femur from donors of two ages (48- and 78-year-old female) tested at room temperature in air. Specimens were fully hydrated in physiologically buffered saline solution prior to testing. The mean and standard deviation of the crack-initiation toughness and the slope of the R-curves were obtained by averaging those of the individual specimens.
