US 12,247,953 B2
Device for creep test, system for tensile and compressive creep test and test method of the same
Chunlei Dong, Kunming (CN); Jie Wang, Kunming (CN); and Hui Wan, Kunming (CN)
Assigned to Southwest Forestry University, Kunming (CN)
Filed by Southwest Forestry University, Kunming (CN)
Filed on Jul. 19, 2022, as Appl. No. 17/867,756.
Prior Publication US 2024/0027315 A1, Jan. 25, 2024
Int. Cl. G01N 3/08 (2006.01); G01N 33/46 (2006.01)
CPC G01N 3/08 (2013.01) [G01N 33/46 (2013.01); G01N 2203/0017 (2013.01); G01N 2203/0019 (2013.01); G01N 2203/0071 (2013.01); G01N 2203/0222 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A device for a creep test, the device comprising a device frame, a test piece clamp, a load loading mechanism and linear displacement sensors, wherein each of the test piece clamp, the load loading mechanism and the linear displacement sensors is arranged on the device frame, wherein:
the test piece clamp is configured for placing a test piece for the creep test, the test piece is arranged in a middle of the test piece clamp, a first end of the test piece clamp is a fixed end, a position of the fixed end is unchanged relative to the device frame, and a second end of the test piece clamp is a movable end;
the load loading mechanism comprises a pulley block and a load, the pulley block comprises at least one movable pulley and a plurality of fixed pulleys, the load is connected with the movable end of the test piece clamp through a steel wire rope that is wound around the pulley block, an acting force is applied to the test piece for the creep test by the load through the movable end of the test piece clamp, and the acting force acts on a same line as a central axis of the test piece; and
the linear displacement sensors are configured for acquiring displacement data of the test piece during the creep test.