Estimation of Uncertainty of Measurement for Experimental Determination of Longitudinal Modulus for Carbon/Carbon Composites

Uncertainty of measurement is an important parameter for any experiment where measurements are involved. Several advanced materials are in use for various applications of defense, space, and aviation. Carbon/carbon composite is one of them and is used extensively for high-temperature applications. Defense and space applications specifically require materials that withstand very high temperatures. Carbon/carbon composites are thus extensively used to fabricate components and sub-systems required to withstand high temperatures. Researchers work on the evaluation of the properties of these materials numerically, to design components made of composites. This numerical evaluation of properties should be accurate and agrees closely with the experimental results. The experimental results are bound by the uncertainty of measurement. The uncertainty of measurement will also have an impact on the validation of numerical results. In the current study, the uncertainty of measurement is evaluated for experimental determination of the modulus of unidirectional carbon/carbon composites.