Tensile Strength
Tensile Strength, also known as tensile strength or tensile strength, refers to the maximum tensile stress that a material can withstand in a tensile test until it breaks. This stress value is usually expressed in MPa (megapascals). Tensile strength is an important indicator of a material's ability to resist tensile damage, and it reflects the material's ability to maintain integrity when subjected to a tensile load.
In a tensile test, the specimen is fixed on a tensile testing machine, and then a tensile load is gradually applied until the specimen breaks. During this process, the test machine will record the stress and strain data of the specimen. When the specimen breaks, the maximum stress value recorded by the test machine is the tensile strength of the material.
Elongation
Elongation refers to the percentage of the elongated portion of the specimen after it breaks in tension to its original length. Elongation is an important parameter that indicates uniform or stable deformation of a material. It reflects the material's ability to undergo plastic deformation when subjected to a tensile load.
The calculation formula for elongation is: elongation = (length after break - original length) / original length × 100%. In a tensile test, the elongation can be calculated by measuring the length of the specimen before and after it breaks.