ISO/AWI 26124

Fine ceramics (advanced ceramics, advanced technical ceramics) — Mechanical properties of ceramic composites — Determination of the mechanical strength of end-plug joints on tubes

Scope

This document specifies the conditions for determining the mechanical performances of bonded end-plugs in advanced ceramic matrix composite (CMC) tubes. It applies to all types of ceramic matrix composites, regardless of the nature of the matrix or the reinforcement architecture — including composites reinforced with continuous or discontinuous fibers. It is specific to the tubular geometry closures, and describes a test method applicable at both room and at elevated temperatures, in various environments such as air, vacuum or inert gas atmospheres.
This test method provides information on the push-out force, the nominal joint strength, and the nominal burst pressure. It applied to various end-plug geometries and bonding types, including adhesives made from organic materials, metals, glass, or ceramic compounds.
The information supports the development of new bonding materials, quality assurance during manufacturing, comparison of joint materials, material characterization, reliability assessment, and the generation of design data for closed tubular components. The document also addresses, though is not restricted to, a variety of recommended cconfigurations and dimensions for end-plug test specimen.