Elastic modulus of rubber
All factors affecting the bond strength can affect the elastic modulus of the material, such as bonding mode, crystal structure, chemical composition, microstructure, temperature and so on. Because the alloy composition is different, the heat treatment condition is different, the cold plastic deformation is different and so on, the young's modulus value of the metal material will have 5% or more big wave. But overall, the elastic modulus of metal materials is not a sensitive to tissue mechanical properties, alloying, heat treatment (fibers), cold plastic deformation has little influence on the elastic modulus, temperature, loading rate, external factors have little impact on it, so the general engineering application in the the elastic modulus as a constant. The elastic modulus can be regarded as a measure of material elastic deformation of the degree of difficulty index, the greater the value, makes the material elastic deformation of the greater the stress, material stiffness increased, i.e. under certain stress, the elastic deformation is small.
The elastic modulus E is the stress required to produce a unit elastic deformation under the action of an external force. It is an index to reflect the resistance to elastic deformation of a material, equal to the stiffness of an ordinary spring.
The elastic modulus is an important performance parameter of engineering materials, from a macro perspective, the elastic modulus is a measure of the size of the object against the elastic deformation ability scale, from the microscopic point of view, it is a reflection of atoms, ions or molecules bonding strength.
