Ultimate Tensile Stress (UTS)
Definition - What does Ultimate Tensile Stress (UTS) mean?
Ultimate tensile stress (UTS) is the maximum stress that a material can withstand while being stretched or pulled. The ultimate tensile stress of a material is calculated by dividing the stress placed on the material, generally expressed in terms of pounds or tons per square inch of material by the cross-sectional area of the tested material.
Corrosionpedia explains Ultimate Tensile Stress (UTS)
The ultimate tensile stress (UTS) is usually found by performing a tensile test and recording the engineering stress versus strain curve. The highest point of the stress-strain curve is the UTS. It is an intensive property; therefore its value does not depend on the size of the test specimen. However, it is dependent on other factors, such as:
- Preparation of the specimen
- Presence of surface defects
- Temperature of the test environment and the material