A smart part comprising: a body, manufactured by a three-dimensional (3D) additive manufacturing (AM) process, having high-stress and low-stress sections, wherein when the smart part is in operational use the high-stress section is subjected to higher stress than the low-stress section; and wherein the body comprises a void having a predefined geometry intentionally created within the high-stress section of the body during the AM process, such that the void is completely embedded within the body and is configured to provide quality assurance information.