A tension and compression tester for a fracture stress test of a compact pipe sample having a crack portion formed thereon, comprises: a pair of holders each of which is configured to surround both ends of the compact pipe sample respectively such that the crack portion is interposed between both ends of the compact pipe; fixing portions each of which is disposed between the compact pipe sample and the holder to enhance fastening between the compact pipe sample and the holder; levers each of which is connected with the fixing portion and the holder to deliver tension or bending to the compact pipe sample; and separation preventing portions for fixing both ends of the holder and the lever with each other to prevent separation of the lever and the holder. Accordingly, the tester can conduct both tension and compression tests, while easily applying loads on the sample during the test.

The present disclosure relates to fixtures for tensile testing of universal safety seat belt buckles at different orientations. The proposed fixtures address the limitations of traditional testing methods by simulating a wide range of loading angles and orientations while ensuring secure fixation of the seat belt buckle during mechanical testing. The special fixtures simulate seventeen different loading angles, ranging from 10 to 90 degrees with 5-degree increments, allowing for studying the most common and critical loading scenarios encountered by seat belt buckles in real-world situations. The fixtures incorporate two connection pins and four pairs of cylinder discs with different loading angles to prevent slippage and ensure accurate testing. By accurately replicating diverse range of loading angles and orientations experienced by seat belt buckles, the proposed fixtures enable manufacturers to understand the buckle's performance under various scenarios.

An apparatus for providing pressure to a sample. The apparatus comprises a housing having a cavity, an elastomer within the cavity, and a means for providing pressure to the elastomer within the cavity. The housing and the elastomer are configured to allow a sample to be inserted into the cavity, such that the sample is surrounded by the elastomer and such that the elastomer and the sample together fill the cavity.

The present disclosure relates to a specimen testing machine which includes: a specimen test unit comprising: a pair of gripper parts configured to respectively hold opposite ends of a specimen, a gripper fixing part configured to fix at least any one of the pair of gripper parts, and a specimen driving part configured to move the specimen in a longitudinal direction of the specimen; and a guide plate unit including: a guide plate that is configured to be moved along with a folding direction of the specimen, and to be folded at a center portion thereof, and a second driving part comprising a second fixing part configured to fix opposite ends of the guide plate, and configured to move the specimen in the longitudinal direction of the specimen.

A tension load fixture for applying tension or loading forces to a specimen comprises a pair of tension arms and an imaging device. The pair of tension arms are configured to releasably couple to opposite end regions of a specimen and to apply tension or loading forces to the specimen. The specimen is configured to be positioned between the pair of tension arms and defines a notch between the opposite end regions of the specimen. The notch extends from a side of the specimen to a middle region of the specimen. The imaging device is configured to capture one or more images of the middle region of the specimen and is configured to rotate about a central axis of the tension load fixture that is proximate to the middle region of the specimen to facilitate generation of a three-dimensional image of the middle region of the specimen as the specimen is subjected to tension or loading forces.

A tension load fixture for applying tension or loading forces to a specimen comprises a pair of tension arms and an imaging device. The pair of tension arms are configured to releasably couple to opposite end regions of a specimen and to apply tension or loading forces to the specimen. The specimen is configured to be positioned between the pair of tension arms and defines a notch between the opposite end regions. The notch extends from a side of the specimen to a middle region of the specimen. The imaging device is configured to capture one or more images of the middle region and is configured to rotate about a central axis of the tension load fixture that is proximate to the middle region to facilitate generation of a three-dimensional image of the middle region as the specimen is subjected to tension or loading forces.