Tensile test

At Aites Co., Ltd., we conduct "Poisson's ratio measurement." Poisson's ratio is the ratio of longitudinal to lateral strain that occurs when a load is applied to an object, and it is necessary for strength calculations of materials. In the downloadable materials, we introduce the results of attaching strain gauges to test specimens, applying tensile loads using a universal testing machine, and examining the longitudinal and lateral strains obtained from the strain gauges. Please feel free to download and take a look.

We would like to introduce the "Tensile Property Evaluation using Extensometers for High-Elasticity Flexible Materials" that we offer. Tensile tests of NR rubber will be conducted using contact-type (suitable for high-elasticity and soft materials) and non-contact type (video) extensometers, and the results will be compared. To accurately determine strain in tensile tests, it is necessary to select the appropriate extensometer and testing conditions based on the target material and measurement objectives. We will provide suggestions tailored to your consultation needs.

Our company conducts "rubber thermal aging tests" that help evaluate the properties of materials in actual usage environments. Using a method compliant with JIS K6257 (Method for determining thermal aging characteristics of vulcanized rubber and thermoplastic rubber), rubber test pieces are suspended in a gear oven to create specimens with varying heat treatment times. Additionally, tensile tests are performed on heated natural rubber (NR) to investigate changes in mechanical properties, while hardness is measured simultaneously. Changes in the characteristics of the rubber are also examined, confirming that rubber elasticity is lost and the material becomes harder with heating.

I would like to introduce "Observation of Substrate Deformation Using a 3D Shape Measuring Machine." By applying pressure to the PCB substrate, referencing bending tests of plastics and PCB substrates, the change in state is measured using a 3D shape measuring machine (VR-6200). Since the measurement results can be confirmed with a color palette and line profile, it is possible to visually verify the shape and amount of deformation caused by the applied pressure.