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ISO/AWI 26634

Aerospace — Metallic materials for tubes — The uniaxial fatigue performance test method and mapping relationship of tube components

General information

10.99     Sep 23, 2026

ISO

ISO/TC 20/SC 10

International Standard

Scope

This document specifies the design of arc-shaped tube specimens, fixtures, and fatigue testing methods for uniaxial fatigue performance evaluation. A stress mapping coefficient k is introduced to characterize the mapping relationship between the fatigue performance of individual tubes and that of tube assemblies. The proposal provides a unified basis and guidance for characterizing and decoupling the fatigue performance of small-diameter, thin-walled metallic tubes.

Life cycle

NOW

PROJECT
ISO/AWI 26634
10.99 New project approved
Sep 23, 2026