EN 6034 — Mode II interlaminar fracture toughness (GIIC) for carbon-fibre composites

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EN 6034 is the aerospace test method for the Mode II interlaminar fracture toughness energy of composites. To match this to your program, talk with our team.

What EN 6034 Covers

It determines the Mode II fracture toughness of aerospace composites, characterizing resistance to shear-driven delamination.

How the Test Is Run

An end-notched flexure specimen with a starter crack is loaded in bending so the crack grows under shear, and the toughness is calculated from the load and crack length.

Why It Matters

Mode II toughness is a damage-tolerance requirement for aerospace composites; accurate load and crack measurement are needed.

Reading the Designation

Cited as EN 6034 with its edition. Confirm the version and specimen or fixture requirements before finalizing setup. To configure a composite testing setup, request a quote.

Related Standards

ASTM D7905 is the ASTM Mode II method and EN 6033 covers Mode I toughness.

Request a Quote

Setting up Mode II fracture toughness testing to EN 6034? Request a quote and our team will help you build a system matched to your laminate layup and fixturing.


TensileMill CNC products for EN 6034

Our specimen-preparation systems and testing equipment compatible with EN 6034:


Set up EN 6034 testing with TensileMill CNC

From specimen preparation to the test itself, TensileMill CNC supports the full EN 6034 testing chain. For this work we supply universal testing machines with composite grips and fixtures for tension, compression, and shear coupons. Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.