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ISO/CD 25795

Determination of fracture toughness (JIc) of ductile polymers: The load separation criterion-based method

General information

30.20     Aug 19, 2025

ISO

ISO/TC 61/SC 2

International Standard

Scope

This test method covers the determination of the low-rate fracture toughness (JIc) of polymeric materials exhibiting a ductile behaviour, characterized by macroscopically stable crack growth during a fracture test. The application of standard linear elastic fracture mechanics (LEFM) tests to these materials typically fails due to the excessive non-linearity in the response. This test method, developed for the SE(B) testing configuration, describes a single-specimen approach that does not require the measurement of the crack extension, Δa.

Life cycle

NOW

IN_DEVELOPMENT
ISO/CD 25795
30.20 CD study/ballot initiated
Aug 19, 2025

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