Figure 10.
Fracture morphologies of specimens. (a,b) Specimen A; (c,d) specimen B; (e,f) specimen C; (g,h) specimen D.
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.