Work Item
ASTM WK90628

Revision of E143-20 Standard Test Method for Shear Modulus at Room Temperature

Rationale

Shear modulus is invariant in all directions for isotropic materials; however, shear modulus is planar property for orthotropic materials having a unique value for each orthogonal plane. E143 aggregates shear modulus values in a manner that results in a single value for a particular material axis loaded in torsion. This aggregated value is important for particular applications, such as power transmission shafts. However, directional nomenclature should be introduced in a manner consistent with B769, B831, and E238.

Details

Developed by Subcommittee: E28.04

Committee: E28

Staff Manager: Ashley Wiand

Work Item Status

Date Initiated: 05-06-2024

Technical Contact: James Tummons