Provided is an abrasion test apparatus for measuring an abrasion state of a workpiece, including: a workpiece holding mechanism holding the workpiece; a contact tool repeatedly making contact and non-contact with the workpiece; a rotating mechanism holding the contact tool to be freely rotatable; and a heating mechanism intermittently heating an end portion of the contact tool.

The invention discloses a slope one-way loading rutting test device, wherein the upper part of a loading frame is slidably connected with an upper cross beam of a frame through a loading frame rotating assembly, and a variable speed motor and a runner wheel are embedded in the lower part of the loading frame. The variable speed motor is in transmission connection with the runner wheel to realize one-way continuous loading of the runner wheel on a test piece. The lower part of a bearing frame is slidably connected with a lower cross beam of a frame through a bearing frame rotating assembly, a test piece mounting frame and a height adjusting device are sequentially embedded into the upper part of the bearing frame from top to bottom, and the height of the test piece mounting frame is adjusted through the height adjusting device.

An abrasion tester and testing method. The testing method comprises setting a running speed of a rubber sample fixed to an outer surface of an annular belt member stretched between a pair of pulleys to a desired speed; setting a pressing load applied by a contact member to a desired pressing load via an anchor member; selecting, as the contact member, a desired contact member from a plurality of types of contact members with different rubber sample surface contacting tip specifications; pressing the contact member against the surface of the rubber sample running by the rotation of the pulleys; and obtaining an amount of scratch abrasion of the rubber sample using a calculation unit on the basis of a cross-sectional shape of the surface of the rubber sample detected by a shape sensor.

Disclosed is a device for analyzing dynamic characteristics of a carbon composite material based on a test temperature, an orientation of a carbon material, and an external loading pattern applied thereto. The device includes a sensitivity analyzer configured to calculate a frequency response function of the carbon composite material based on a physical force signal and a vibration signal; and calculate a sensitivity of the carbon composite material to each of variations in the test temperature, an orientation of a carbon material contained in the carbon composite material, and the external loading pattern applied thereto, based on the calculated frequency response function.

Disclosed is a device for analyzing dynamic characteristics of a carbon composite material based on a test temperature, an orientation of a carbon material, and an external loading pattern applied thereto. The device includes a sensitivity analyzer configured to calculate a frequency response function of the carbon composite material based on a physical force signal and a vibration signal; and calculate a sensitivity of the carbon composite material to each of variations in the test temperature, an orientation of a carbon material contained in the carbon composite material, and the external loading pattern applied thereto, based on the calculated frequency response function.

A high-temperature in-situ loaded computed tomography (CT) testing system based on a laboratory X-ray source and a method therefor are provided. A dynamic sealing device is adopted. A pull-up pressure rod and a pull-down pressure rod are allowed to rotate circumferentially and move axially. Meanwhile, a high-temperature furnace is fixed without rotating or moving, such that the high-temperature furnace is flat in an imaging direction to shorten an imaging distance and improve imaging quality. An independent tensile testing machine is utilized to achieve high-load loading. The in-situ measurement of internal deformation and damage information of a specimen under tensile or compressive load in a high-temperature environment is implemented. By taking advantage of the miniaturization design of the high-temperature device, the accuracy of the damage test using the laboratory X-ray source is increased. Tests and researches on the internal damage and failure behavior of the high-temperature materials can be conducted.

A hose to be evaluated is installed on a fixing frame in a preset shape, and a strain gauge and markers are attached to a surface of the hose. During a course of application of predetermined internal pressure to the hose, strain data is acquired using the strain gauge and an image of an external shape of the hose is captured using a camera device to acquire image data. Based on the strain data and the image data acquired, a change in the shape of the hose between a plurality of time points at identical internal pressure is determined. Such hose fatigue resistance evaluation method can determine changes in the degree of deformation of a hose over time due to repeated application of internal pressure.

A hose to be evaluated is installed on a fixing frame in a preset shape, and a strain gauge and markers are attached to a surface of the hose. During a course of application of predetermined internal pressure to the hose, strain data is acquired using the strain gauge and an image of an external shape of the hose is captured using a camera device to acquire image data. Based on the strain data and the image data acquired, a change in the shape of the hose between a plurality of time points at identical internal pressure is determined. Such hose fatigue resistance evaluation system can determine changes in the degree of deformation of a hose over time due to repeated application of internal pressure.

An adjustable induction heating coil and cooling plenum assembly for use in a strain-controlled thermo-mechanical fatigue test of a specimen, wherein the specimen is suspended in a load frame under a constant tensile force, comprising: a heating coil comprised of a plurality of windings of a metal tube having a first end and a second end, comprised of metallic tubing suitable for connection to a radio frequency induction furnace; a moveable stage slideably connected to a stage assembly comprising: a dielectric block having at least one elongated slot; a connection block slideably connected to the dielectric, having a hollow conduit through the heating coil connection block and a connection fitting fixedly attached at first and second ends of the hollow conduit; and a cooling plenum assembly comprising: a relatively thin, flat toroid-like shaped plenum having a cap fixedly connected to a body, a hollow central bore, and a perimeter sidewall surrounding the hollow central bore; a first perimeter shape of the hollow central bore substantially conforms to a second perimeter shape of the specimen; a continuous hollow channel within said perimeter sidewall; a continuous opening of between 0.002 and 0.004 inches between the cap and the body on an interior side of said perimeter sidewall.

A hose to be evaluated is installed on a fixing frame in a preset shape, and a strain gauge and markers are attached to a surface of the hose. During a course of application of predetermined internal pressure to the hose, strain data is acquired using the strain gauge and an image of an external shape of the hose is captured using a camera device to acquire image data. Based on the strain data and the image data acquired, a change in the shape of the hose between a plurality of time points at identical internal pressure is determined. Such hose fatigue resistance evaluation method can determine changes in the degree of deformation of a hose over time due to repeated application of internal pressure.