Dimension tolerances refer to the allowable deviation from specified dimensions, such as thickness or width, in a material. These tolerances are typically defined in standards or codes, such as Eurocode, ASTM or ASME, and are important to ensure that the material meets the requirements for a specific application.
The impact of dimension tolerances on material data depends on the specific material properties being measured. In some cases, tolerances may have a minimal effect on the material data, while in other cases even small deviations from the specified dimensions can significantly affect the measured values.
For example, when measuring the mechanical properties, such as tensile strength or elongation, of a material, the test samples must be prepared according to the dimensions and tolerances specified to ensure accurate and repeatable results. If the dimensions are not within the specified tolerance, the material data may be affected by variations in the sample preparation, which can lead to inaccurate or unreliable results.
Similarly, dimension tolerances must be accounted for in the design and fabrication of components to ensure that the final product meets the required specifications and performs as intended. Deviations from the specified tolerances can result in reduced strength or other performance issues, which in turn can impact the overall safety and reliability of the component.