A bench for mechanical characterisation of a battery cell by applying a compression force includes a frame having a first compression plate, a movable element having a second compression plate opposite the first compression plate, a compression spring for applying a compression force to the cell between the first and second compression plates, a force sensor inserted between the movable element and the spring, and movement sensors measuring the movement between the first and second compression plates. The first compression plate includes a projecting compression zone with an area equal to a portion of interest of the cell and the frame includes a recess surrounding a thicker frame in the frame forming a pedestal supporting the first compression plate.

A device and a method for testing tensile resistance of multiple-row grouped pillars in an inclined goaf are provided. The bottoms of stands of the device are connected with a testing machine base, and the tops of the stands of the device are connected with a transverse frame; an upper slideable clamping seat and a lower slideable clamping seat are semi-cylindrical blocks, multiple lower loading jaws that are positioned to have a same central line are arranged on the lower slideable clamping seat, each of the lower loading jaws is opposite to a corresponding one of the upper loading jaws, the lower loading jaws are welded to the lower slideable clamping sea to test the tensile resistance of samples together; the upper part of the upper slideable clamping seat is connected with an upper pressure disk, and the lower slideable clamping seat is connected with a lower pressure disk.

A device and a method for testing tensile resistance of multiple-row grouped pillars in an inclined goaf are provided. The bottoms of stands of the device are connected with a testing machine base, and the tops of the stands of the device are connected with a transverse frame; an upper slideable clamping seat and a lower slideable clamping seat are semi-cylindrical blocks, multiple lower loading jaws that are positioned to have a same central line are arranged on the lower slideable clamping seat, each of the lower loading jaws is opposite to a corresponding one of the upper loading jaws, the lower loading jaws are welded to the lower slideable clamping sea to test the tensile resistance of samples together; the upper part of the upper slideable clamping seat is connected with an upper pressure disk, and the lower slideable clamping seat is connected with a lower pressure disk.

An in-situ tensile device for X-ray tests is provided, including: a frame including a connecting structure, where the connecting structure is configured to fixedly connect to a testing bench of a testing device; a stretching mechanism, disposed on the frame; a clamping mechanism, including two clamping assemblies arranged opposite to each other in a length direction; where the two clamping assemblies are configured to clamp two ends of a testing piece, the testing piece is provided with a testing surface, and the testing surface is disposed on surfaces of the two clamping assemblies; the stretching mechanism is drivingly connected to the two clamping assemblies to enable the two clamping assemblies to move synchronously in one of a direction approaching each other and a direction far away from each other; and the two clamping assemblies are detachably connected to the stretching mechanism. The device can improve the accuracy of test results.

An in-situ tensile device for X-ray tests is provided, including: a frame including a connecting structure, where the connecting structure is configured to fixedly connect to a testing bench of a testing device; a stretching mechanism, disposed on the frame; a clamping mechanism, including two clamping assemblies arranged opposite to each other in a length direction; where the two clamping assemblies are configured to clamp two ends of a testing piece, the testing piece is provided with a testing surface, and the testing surface is disposed on surfaces of the two clamping assemblies; the stretching mechanism is drivingly connected to the two clamping assemblies to enable the two clamping assemblies to move synchronously in one of a direction approaching each other and a direction far away from each other; and the two clamping assemblies are detachably connected to the stretching mechanism. The device can improve the accuracy of test results.

The invention relates to a method for preparing a tensile test on an elongate, more particularly fibrous, specimen, for example on a collagen fibril, comprising the steps of: -providing the elongate specimen; - attaching a handling particle to the elongate specimen; - providing a force sensor, on which a retainer for the handling particle on the elongate specimen is disposed; - connecting a handling apparatus to the handling particle on the elongate specimen; and - connecting the handling particle on the elongate specimen to the retainer on the force sensor by means of the handling apparatus. The invention also relates to a method and a device for performing a tensile test on an elongate specimen.

System and methods are described for directly measuring mechanical properties of a sample while concurrently imaging the sample using a scanning beam microscope (e.g., a scanning electron microscope (SEM)).

System and methods are described for directly measuring mechanical properties of a sample while concurrently imaging the sample using a scanning beam microscope (e.g., a scanning electron microscope (SEM)).

The invention consists of a methodology for calculating the service life of flexible tubes subject to the SCC-CO.sub.2 phenomenon, in which the methodology allows establishing the criticality level of each duct within the scope of the phenomenon, allowing the establishment of actions for the most critics. In addition, another important gain with the development of the methodology is related to the fact that it enables safe operation even in a degraded pipe.

The invention consists of a methodology for calculating the service life of flexible tubes subject to the SCC-CO.sub.2 phenomenon, in which the methodology allows establishing the criticality level of each duct within the scope of the phenomenon, allowing the establishment of actions for the most critics. In addition, another important gain with the development of the methodology is related to the fact that it enables safe operation even in a degraded pipe.