What is the bearing capacity of bendable rubber expansion joint?

Flexural rubber expansion joint hardness can affect the wear resistance of flexural rubber joints, in general, when the hardness is high, its wear resistance is also better. In the work to withstand the impact load, if still use the strength indicators under static load to design calculations, it can not guarantee the work of these parts, while considering the toughness of the bendable rubber joint. Bendable rubber expansion joints are usually used in engineering to measure the impact toughness of bendable rubber expansion joints by cherry hammer impact test.
Flexible rubber expansion joint good integrity, plasticity on the geological conditions of the complex section of the strong resistance to deformation; metal flexural rubber joints rigid strength, structural stress situation is reasonable, load distribution, and a certain amount of resistance to deformation capacity. In the structure has the characteristics of lateral compensation displacement. Flexible rubber expansion joint has the friction coefficient of the inner surface of the tube, so that the atmospheric rheological flow of vegetation to enhance the heat transfer performance of the two tubes; on the other hand, the flexible rubber expansion joint has a more obvious role of transverse compensation displacement, while the stronger the role of transverse compensation displacement as the diameter decreases.
Flexible rubber expansion joint of large grain size is not more than 5 cm. and flexural rubber joint contact part to lay a thickness of 7 ~ 15 cm of coarse sand bedding layer, its large grain size of 12 mm, to ensure that the foundation and the surface of the pipe body fully close contact. The hardness of flexural rubber joints is also an important indicator of mechanical properties of flexural rubber joints, hardness and strength are the same, reflecting the resistance of flexural rubber joints to plastic deformation, hardness test method is simple, and does not damage the parts, so in production practice, often through the determination of the hardness of flexural rubber joints to estimate their strength indicators.