Creep testing machineThe principle.
1.Load device: The load device is generally hydraulic or electromagnetic, which can provide constant stress or strain loading. By controlling the loading method and loading size, it is possible to simulate the stress state under real operating conditions.
2.Temperature control system: Creep testing is critical to temperature control, as the creep properties of a material are closely related to temperature. The temperature control system can achieve accurate control of the test temperature through electric heating, water cooling, etc.
3.Deformation Measuring Instruments: Usually equipped with high-precision displacement sensors and stress sensors to measure the deformation and stress of the specimen. These measurements reflect the change in the properties of the material under creep loading.
Applications: 1Materials research: It can be used to evaluate the creep behavior of different materials, helping researchers understand important parameters such as deformation characteristics and fatigue life of materials. By comparing the creep properties of different materials, it is possible to select the right material for a specific application.
2.Engineering application: In practical engineering, many materials need to withstand constant stress or strain loading for a long time, such as high-temperature pipes, boiler components, etc. Through the creep test, the creep deformation of the material under working conditions can be determined, so as to determine the service life and safety performance.
3.New material development: For the development and application promotion of new materials, the testing machine is an indispensable tool. Through the creep test, the performance of the new material in the long-term use process can be evaluated, and the reference for further improvement of the material formulation and process can be provided.
Creep testing machineRelated Technologies:
1.Stress relaxation test: The stress relaxation test is a special form of creep test, which is to observe the change in stress of a material over time at a given stress level. This test is often used for stability assessment and failure analysis of materials.
2.Numerical simulation: Numerical simulation methods can be used to assist in the design and analysis of creep tests. Numerical simulation can be based on the constitutive relationship of the material and the test data, ** the creep behavior of the material under different conditions, saving test time and cost.
3.Creep fracture mechanics: Creep fracture mechanics studies the mechanism and law of material fracture under creep loading. By analyzing the fracture characteristics of the specimen, the creep failure mechanism of the material can be revealed, and the life of the material can be revealed.