company news about The basic principle and specific application of tensile testing machine

Tensile testing machine is also known as tensile strength testing machine, material testing machine, universal tensile testing machine, material mechanical properties testing machine, material fatigue testing machine. It is a kind of test equipment for testing the tensile strength and properties of materials. It is widely used in the fields of material quality control, material development and design, manufacturing process control and product quality assurance. This paper introduces the basic principle, test method and application of tensile testing machine.

Basic principle of tensile testing machine

Tensile testing machine is a test equipment used to test the tensile properties of materials. Its working principle is based on material constitutive relation and Hooke's law. During the material tensile test, the material under test is sandwiched between two fixtures, and the tension is applied to make it undergo tensile deformation. In this process, the tension and the elongation of the material are measured, from which the stress and strain can be calculated, and in this way the stress-strain curve can be obtained to understand the mechanical properties of the material.

Tensile testing machine is mainly composed of mechanical frame, motor, reducer, sensor, control system and so on. Motion, apply tension. The sensor can measure the force, position, stress, should change and other parameters in the tensile test, and the control system can automatically control the motor movement and data acquisition.

Test method of tensile testing machine

The test methods of universal tensile tester include static tensile test and dynamic tensile test. Static tensile test means that tensile force is applied at a certain tensile speed until the sample breaks. Dynamic tensile testing refers to the application of tension at different strain rates to assess the dynamic properties of materials.

Application of tensile testing machine

Tensile testing machines are widely used in material science, manufacturing, construction, aerospace industry, automotive industry and medical instruments and other fields. The following are examples of applications of tensile testing machines in some fields:

1. Materials science: Tensile testing machines are used to test the mechanical properties of various materials, such as metals, plastics, rubber, paper, fabrics and biological materials. These tests assess properties such as strength, stiffness, ductility, fracture toughness and fatigue life of the material.

2. Manufacturing: Tensile testing machines are used to test the performance of manufactured parts and products, such as automotive parts, aircraft parts and mechanical parts. These tests can assess the quality and reliability of these parts and products.

3. Construction industry: Tensile testing machines are used to test the properties of building materials, such as concrete, steel and wood. These tests can assess the strength and durability of building materials to ensure the safety and reliability of the building.

4. Aerospace industry: Tensile testing machines are used to test the performance of aerospace materials and components, such as aero-engine components and aircraft structural materials. These tests assess the strength and durability of these materials and components to ensure the safety and reliability of aerospace systems.

5. Automobile industry: Tensile testing machine is used to test the performance of automobile parts and materials, such as automobile engine parts and body steel plates. These tests can assess the strength and durability of car parts and materials to ensure the safety and reliability of the car.

6. Medical devices: Tensile testing machines are used to test the performance of medical devices and biological materials, such as artificial joints and bone plates. These tests can assess the strength and durability of medical devices and biological materials to ensure their safety and reliability.

In conclusion, tensile testing machine is a very important test equipment, can be used to evaluate the strength, stiffness, ductility, fracture toughness and fatigue life of various materials. The application of tensile testing machine in various fields provides important reference and basis for the development and application of materials, and also provides important support for manufacturing process control and product quality assurance.