EN 2377 — Apparent Interlaminar Shear Strength (GFRP) Test Method

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EN 2377 is the aerospace-series test method for the apparent interlaminar shear strength of glass-fibre-reinforced plastics. To match this to your program, talk with our team.

What EN 2377 Covers

It determines the apparent interlaminar shear strength of GFRP by short-beam bending under the aerospace framework.

How the Test Is Run

A short-span GFRP specimen is loaded in three-point bending until it fails, and the apparent ILSS is calculated from the peak load and cross-section.

Why It Matters

ILSS indicates interlaminar quality for aerospace GFRP; a rigid short-span fixture is required.

Reading the Designation

Cited as EN 2377 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

EN 2563 covers carbon-fibre ILSS and ISO 14130 is the general ISO ILSS method.

Request a Quote

Setting up ILSS testing to EN 2377? Request a quote and our team will help you build a system matched to your laminate thickness and span.


TensileMill CNC products for EN 2377

Our specimen-preparation systems and testing equipment compatible with EN 2377:


Configure your EN 2377 setup with TensileMill CNC

TensileMill CNC helps labs run EN 2377 with repeatable, audit-ready results. Our range includes universal testing machines with composite grips and fixtures for tension, compression, and shear coupons. Let us know your application and our engineers will help you build a compliant EN 2377 setup.