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.

A device and method for testing the working performance of an anchor rod cable by simulating stratum fracture and separation on the basis of electromagnetic action, applicable to the technical field of testing working performance of anchor rod cables by simulating a tunnel field. The device comprises a top base (1) and a bottom base (2); a plurality of hydraulic vertical columns (3) are provided between the top base (1) and the bottom base (2); the plurality of hydraulic vertical columns (3) are provided thereon with clamping devices, and an electromagnetic block (9) is disposed between two groups of drawing block-shaped clamp holders (4). Using the attraction and repulsion forces of the electromagnetic block (9), the laminated electromagnetic block generates the separating or fracturing effect in a loading process so as to simulate the interaction between surrounding rock and an anchor rod cable test piece (8) in the field and accurately record various performance parameters of a working status of the anchor rod cable test piece (8), thereby providing positive guidance for directing field work.

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 non-destructive evaluation method for fiber rope comprises the following steps. A rope construction type is identified. An expected life of the rope construction type is determined. At least two characteristics of the rope construction types are identified. A characteristic adjustment factor is stored for at least one of the at least two characteristics. At least one rope characteristic interaction between at least two of the identified rope characteristics is identified. An interaction adjustment factor is stored for the at least one identified rope characteristic interaction. An adjusted remaining life is calculated based the expected life, the at least one characteristic adjustment factor, and the at least one interaction adjustment factor.

The invention relates to a method for determining the replacement state of wear of a rope made of a textile fibre material, wherein, in the course of using the rope, the elongation of the rope is monitored over its entire length and the rope is discarded if the elongation of the rope over the entire length exceeds a predetermined maximum value (%). The method according to the invention is characterized in that also the local elongation of a discrete rope section is monitored and the rope is discarded if the local elongation of the rope section exceeds a predetermined maximum value (%), with the maximum value of the local elongation of the rope section being greater than the maximum value of the elongation of the rope over the entire length.

A system for applying and measuring tensions of a plurality of bio-object constructs includes a base; and a flexible body disposed on the base, wherein the flexible body defines a plurality of construct holes for accommodating the plurality of bio-object constructs, such that when the flexible body is bent, the bending of the flexible body causes tensions to be applied to the plurality of bio-object constructs, thereby causing displacements of the plurality of bio-object constructs.

A system for applying and measuring tensions of a plurality of bio-object constructs includes a base; and a flexible body disposed on the base, wherein the flexible body defines a plurality of construct holes for accommodating the plurality of bio-object constructs, such that when the flexible body is bent, the bending of the flexible body causes tensions to be applied to the plurality of bio-object constructs, thereby causing displacements of the plurality of bio-object constructs.

The device automatically clears high elongation test samples with long tails after breakage from a materials testing device after the testing has been performed. A robotic arm engages the tested specimen and brings it to a specimen clearing device which includes a slot leading to a nip between an opposed drive wheel and driven wheel. A motor drives the drive wheel to move the tested specimen through the specimen clearing device into a scrap bin or similar repository.

The present invention provides a self-healing method for fractured SiC amorphous nanowires. A goat hair in a Chinese brush pen of goat hair moves and transfers single crystal nanowires under an optical microscope. On an in-situ nanomechanical test system of a TEM, local single crystal nanowires are irradiated with an electron beam for conducting amorphization transformation. Amorphous length of a single crystal after transformation is 60-100 nm. A fracture strength test is conducted on the amorphous nanowires in the single crystal after transformation in the TEM; and fracture strength of the amorphous nanowires is 9-11 GPa. After the amorphous nanowires are fractured, unloading causes a slight contact between the fractured end surfaces; and self-healing of the nanowires is conducted after waiting for 16-25 min in a vacuum chamber of the TEM. Atom diffusion is found at a healed fracture through in-situ TEM representation; and recrystallization is found in the amorphous nanowires. The present invention provides a method for realizing self-healing for fractured SiC amorphous nanowires without external intervention.

Disclosed are an integral clamping steel strand drawing test apparatus, and a method for using same, wherein same are suitable for use in a steel strand mechanical property test. The apparatus comprises a rectangular lower base (13) and a rectangular upper base (14), with a hydraulic telescopic mechanism being provided between the lower base (13) and the upper base (14), the hydraulic telescopic mechanism being provided with an integral clamping mechanism, a steel strand test piece (4) to be tested being provided in the integral clamping mechanism, the steel strand test piece (4) to be tested being provided with a plurality of binding protective devices (2), and a safety protection door (16) being provided outside the hydraulic telescopic mechanism. During a steel strand drawing test, the property of a steel strand itself is fully brought into play, and the integrity of the steel strand test piece (4) is maintained, thereby being able to accurately reflect various mechanical properties of the drawn steel strand while preventing damage to the device and injuring an operator caused by a fracture in a single strand or a plurality of strands of the steel strand during the test. The device is simple and easy to operate, and has good practicability and promotional and application value.