What mechanical properties can be determined by the tensile test?

Tensile test is a commonly used method for testing the mechanical properties of materials, which can determine the following mechanical properties:1. Strength: Through the tensile test, the maximum stress, that is, the strength, can be determined when the material is subjected to force. Common strength indicators include tensile strength, yield strength, fatigue strength, etc. 2. Plasticity: In the tensile test, the deformation of the material before reaching the maximum stress is called plasticity. By measuring the deformation of the material in the process of force, the plasticity of the material can be evaluated. 3. Elasticity: The ability of the material to restore its original state after unloading is called elasticity. In the tensile test, the elasticity of the material can be evaluated by measuring the elastic deformation of the material under force. 4. Hardness: In the tensile test, the hardness of the material can be evaluated by measuring the hardness of the material surface. 5. Fracture toughness: Fracture toughness refers to the resistance of the material when the crack expands. Through tensile test, the stress strength factor of the material when the crack expands can be determined, so as to evaluate the fracture toughness of the material.In a word, tensile tests can determine the mechanical properties of materials such as strength, plasticity, elasticity, hardness and fracture toughness. These performance indicators can help us understand the mechanical properties and properties of materials, and provide a basis for the application and optimization of materials.