A test apparatus comprises a probe movably mounted relative to a carrier. The probe comprises an end portion with a surface area of about 5 mm.sup.2 or less. The test apparatus can be used in methods of determining a crush strength of an edge of a substrate. Methods can comprise aligning the probe with a test location of the substrate at a predetermined angle relative to a probe axis. Methods can further comprise applying a mechanical force to the test location with the probe in the direction of the probe axis. Also, methods can comprise increasing the mechanical force applied by the probe until the substrate cracks or a predefined force applied by the probe is reached. Based on the mechanical force applied by the probe, a crush strength of an edge can be determined.

A high-speed tensile testing machine conducts a tensile test on a test piece by applying a test force to the test piece. The high-speed tensile testing machine includes a detection unit configured to detect a test period indicating a time from when the test piece starts to deform under action of the test force to when the test piece breaks, and a determination unit configured to determine validity of a test result of the tensile test, on the basis of the test period and natural vibration of the high-speed tensile testing machine. Specifically, in the case where the test period is a predetermined multiple or more of a specific cycle indicating a cycle of the natural vibration of the high-speed tensile testing machine, the determination unit determines that the test result of the tensile test is valid.

A tensile testing fixture and a tensile testing device with improved specimen tensile stress accuracy are provided. The fixture includes a base, an adjusting mechanism disposed on the base, a floating mechanism disposed on and connected to the adjusting mechanism, a lower head disposed on and connected to the floating mechanism, and an upper head disposed above the lower head. The floating mechanism is configured to transmit a pulling force of the lower head to the adjusting mechanism. The adjusting mechanism is configured to adjust a position of the floating mechanism in a horizontal direction under the pulling force. The floating mechanism is further configured to adjust a position of the lower head in the horizontal direction, causing the lower head and the upper head to be coaxial in a vertical direction.

A tensile testing fixture and a tensile testing device with improved specimen tensile stress accuracy are provided. The fixture includes a base, an adjusting mechanism disposed on the base, a floating mechanism disposed on and connected to the adjusting mechanism, a lower head disposed on and connected to the floating mechanism, and an upper head disposed above the lower head. The floating mechanism is configured to transmit a pulling force of the lower head to the adjusting mechanism. The adjusting mechanism is configured to adjust a position of the floating mechanism in a horizontal direction under the pulling force. The floating mechanism is further configured to adjust a position of the lower head in the horizontal direction, causing the lower head and the upper head to be coaxial in a vertical direction.

Disclosed are a hydro-mechanical coupling experimental device with CT real-time scanning and a use method thereof. The hydro-mechanical coupling experimental device with the CT real-time scanning includes a CT scanning room and further includes a support frame, a hydro-mechanical coupling mechanism and a jack that are arranged in the CT scanning room. The support frame includes a base, a top plate, a plurality of columns for arranging the top plate and the base at intervals, and a movable plate that is arranged between the top plate and the base and can slide on the plurality of columns. The hydro-mechanical coupling mechanism includes an experimental box, a pressure box arranged inside the experimental box and a compression leg slidingly worn on a top of the experimental box; and the experimental box is arranged on the movable plate, and the jack is arranged on the base.

A system and method for applying force to at least one device at least one force actuator including a processor accessing at least one description of the at least one device, the processor creating command information based at least on the at least one description, and a controller accessing the command information, the controller creating at least one motion command based on the command information, the controller issuing the at least one motion command, the motion command enabling the testing of the at least one device by controlling the at least one force actuator based on the at least one motion command.

A system and method for applying force to at least one device at least one force actuator including a processor accessing at least one description of the at least one device, the processor creating command information based at least on the at least one description, and a controller accessing the command information, the controller creating at least one motion command based on the command information, the controller issuing the at least one motion command, the motion command enabling the testing of the at least one device by controlling the at least one force actuator based on the at least one motion command.

A tensile test fixture for quick testing of materials with low transverse strength and relatively high longitudinal strength. After the tensile test fixture is loaded into a universal testing machine, such as a two-part load frame, a first test specimen is aligned and tensile tested. Alignment of the first test specimen ensures that all consecutive test specimens are aligned within the tensile test fixture without further alignment required.

A tensile test fixture for quick testing of materials with low transverse strength and relatively high longitudinal strength. After the tensile test fixture is loaded into a universal testing machine, such as a two-part load frame, a first test specimen is aligned and tensile tested. Alignment of the first test specimen ensures that all consecutive test specimens are aligned within the tensile test fixture without further alignment required.

A device for testing overall anchorage performance of a basalt fiber reinforced plastic (BFRP) anchor cable includes an anchor cable anchoring system and a data acquisition system. The anchor cable anchoring system includes a test bed, BFRP arranged over the test bed, and a distributed optical fiber bonded to a surface of the BFRP, the test bed being provided with an anchoring section at one end and an outer anchoring section at the other end, the anchoring section anchors one end of the BFRP, and the outer anchoring section anchors the other end of the BFRP. The data acquisition system includes a modem and a grating connected to two ends of the distributed optical fiber in series, and a center hole jack and a dynamometer arranged between the outer anchoring section and an end of the test bed, and the BFRP penetrates the center hole jack and the dynamometer.