Rationale

- Update the definition for the term “crack-tip plane strain,” in Section 3.3 (general definitions, listed with the standard(s) of origin) of E1823, based on the working group’s findings. E399 does not define this term. The reference in E1823 is to any standard that also defines the term. Although other standards use the term, no other E08 standard defines the term. As such, the reference is changed to a self-reference (E1823). Furthermore, cross-references to related terms are added. - Update the definition for the term “crack-tip plane stress,” in Section 3.3 (general definitions, listed with the standard(s) of origin) of E1823, based on the working group’s findings. Furthermore, cross-references to related terms are added.