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.
Specimen geometries used in tensile mechanical tests: (A) rectangular, (B) dogbone, and (C) ring. The dimensions used in the calculation of engineered or true stress and strain are represented: initial cross-sectional area (A0cs), actual cross-sectional area (Acs), initial distance between the grips (l0) actual distance between the grips (l0).
