Strain Range
Strain amplitude is the stress range between maximum and minimum strain during a cyclic loading cycle. It determines the life of components under alternating loads.
Physical-chemical mechanism of action
Strain amplitude describes the difference between the maximum and minimum strain state of a material under cyclic loading. This stress affects the microscopic structure of the material and can lead to micro-deformation.
Metallurgical relevance & welding risks
A high strain amplitude increases the risk of micro-deformation, which can lead to crack formation and damage in the material. This can significantly affect the service life of components under alternating loads.
Workshop practice & procedures
To minimize strain amplitude and increase the service life of welded components, take the following measures:
• Use materials with low strain amplitude.
• Ensure the weld is sound and secure to avoid micro-deformation.
• Regularly check the loading of components and perform preventive maintenance as needed.