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.
(a) A self-designed biaxial loading apparatus for porous solids. (b) Schematic of porous solids under biaxial loading. The upper and lower surfaces of the samples were closely fixed by two thin sheets (made of PMMA). Here, only the thin sheet of the lower surface is drawn.
