G01N3/165

IMAGING ENVIRONMENT TESTING FIXTURE AND METHODS THEREOF

Systems and methods are provided for allowing users to safely and efficiently conduct repeatable dynamic experiments involving coordinated applications of force, motion, pressure, temperature, flow, dispersion and other physical events via a testing fixture positioned within an imaging environment.

CONCRETE TEST DEVICE AND METHOD BASED ON LOAD-CORROSION COUPLING ACTION

The present invention discloses a concrete test device and method based on a load-corrosion coupling action, relating to the technical field of corrosion experimental devices for concrete sewage pipelines. The device simulates a real environment of a sewage pipeline based on the load-corrosion coupling action, applies mechanical load and chemical corrosion effects to a concrete specimen simultaneously, and accelerates a corrosion effect on the concrete specimen by exposing the concrete specimen. According to the device, researches on mechanical properties of a concrete material under the load-corrosion coupling action are realized, and an assessment sample basis is provided for researches on aging characteristics of the concrete sewage pipelines. The present invention further discloses a concrete test method based on the aforementioned test device.

Concrete test device and method based on load-corrosion coupling action

The present invention discloses a concrete test device and method based on a load-corrosion coupling action, relating to the technical field of corrosion experimental devices for concrete sewage pipelines. The device simulates a real environment of a sewage pipeline based on the load-corrosion coupling action, applies mechanical load and chemical corrosion effects to a concrete specimen simultaneously, and accelerates a corrosion effect on the concrete specimen by exposing the concrete specimen. According to the device, researches on mechanical properties of a concrete material under the load-corrosion coupling action are realized, and an assessment sample basis is provided for researches on aging characteristics of the concrete sewage pipelines. The present invention further discloses a concrete test method based on the aforementioned test device.

OFF-AXIS LOADING FIXTURE FOR TESTING SPINE BIOMECHANICS

A multi-axial spine testing system includes a physiological motion unit (PMU); a uni-axial test frame having an input; and a fixture configured to be attached to the test frame and facilitates a plurality of primary motions of one or more of the PMU and the fixture. The plurality of primary motions includes a linear motion of the input and a rotational movement of an output. The fixture has an upper assembly directly or indirectly coupled to the input. The upper assembly transfers the linear motion (T.sub.z) of the actuator to the rotational movement (R.sub.x) of the output. The upper assembly and lower assembly apply a bending moment (M.sub.X) and an axial compression (F.sub.z) to the PMU. An external transducer collects data related to or generated by at least the plurality of primary motions. The fixture simultaneously provides the bending motion and axial compression to the PMU.

Rock tensile damage testing system coupled with complex loading condition

A rock direct tensile test platform suitable for all material test machines includes a support frame. A top of the support frame is fixed with a top plate, and a bearing plate is provided above the top plate. The bearing plate is provided with a plurality of vertical force transferring rods. The force transferring rods vertically penetrate through the top plate and have a sliding fit with the top plate. Lower ends of the force transferring rods are provided with a tensile base. A top of the tensile base is provided with a lower clamp holder. A bottom of the top plate is provided with an upper clamp holder, and a clamp center of the upper clamp holder coincides with a clamp center of the lower clamp holder.

High-throughput quantitative measurement of bulk mechanical properties of soft materials

Provided herein are systems and methods for carrying out high-throughput quantitative measurements of bulk mechanical properties of soft materials. The systems include a centrifuge, solid particles, and sample wells. In the systems and methods, samples comprising solid particles embedded in soft materials contained within sample wells are centrifuged in a series of increasing centrifugal speed increments, and a bulk mechanical property, such as fracture stress or elastic modulus, of each soft material is determined by monitoring the centrifugal force needed for the solid particles to fracture the soft material in each of the samples.