The present application relates to the technical field of
rock mechanics test, and more particularly to a
nanoindentation system in-situ mechanical test device and test method, the test device is installed on the test instrument base, comprising a test instrument base, a loading platform is installed on the test instrument base, the loading platform comprises an adjusting box, clamping assemblies are symmetrically arranged at the two ends of the adjusting box, a
telescopic cylinder is connected between the adjusting box and the clamping assemblies, and side support assemblies are movably arranged on the two sides of the adjusting box; the clamping
assembly comprises a clamping block, a locking sliding block is movably arranged at one end of the clamping block, and an adjusting sliding block is arranged at the other end of the clamping block, the adjusting sliding block is slidably connected or separated from the clamping block, a rotating pressing plate is rotatably arranged on the locking sliding block, the side support
assembly further comprises an adjusting cylinder, and the telescopic end of the adjusting cylinder is slidably matched with the adjusting sliding block through an adjusting block; the test method is applied to the test device, a cuboid
rock sample is clamped, a bidirectional compression force or a
shear force or a tensile force is applied to the sample through the
telescopic cylinder and the adjusting cylinder, and
internal stress of the rock material is simulated.