EN 2377:1989
(Main)Aerospace series - Glass fibre reinforced plastics - Test method - Determination of apparent interlaminar shear strength
General Information
- Abstract
This standard defines a method for the determination of the apparent interlaminar shear strength by delamination of textile glass fibre reinforced plastics produced in sheet form for aerospace use.
- Status
- Published
- Publication Date
- 14-Jan-1989
- Withdrawal Date
- 14-Jul-1989
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 4 - Metallic
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 21-Jan-2025
- Completion Date
- 17-Sep-2026
Overview
EN 2377:1989 - Aerospace series - specifies a laboratory test method for determining the apparent interlaminar shear strength of textile glass fibre reinforced plastics (GFRP) produced in sheet form for aerospace use. The standard defines a controlled delamination-based test to quantify the shear performance between plies (interlaminar region) of textile glass‑fibre composite sheets intended for aircraft and aerospace structures.
Key topics and requirements
The standard covers the essential elements needed to perform and report a reproducible interlaminar shear test without prescribing numerical parameters in this summary. Main technical topics typically included are:
- Scope and applicability - materials (textile GFRP in sheet form) and intended aerospace use.
- Specimen preparation - how to select and prepare representative test specimens from production sheets, including orientation and cutting.
- Pre‑conditioning and test environment - requirements for conditioning specimens and controlling laboratory environmental conditions to ensure comparable results.
- Test apparatus and setup - description of the mechanical test arrangement used to initiate and propagate a controlled delamination (shear loading by a prescribed fixture).
- Test procedure - stepwise method for applying load, monitoring delamination, and recording load/displacement data.
- Calculation and interpretation - how to derive the apparent interlaminar shear strength from measured data and report it as a material property.
- Reporting - required documentation of test conditions, specimen details, results and any deviations from the method.
Applications and users
EN 2377:1989 is practical for organizations involved in aerospace composite materials where interlaminar shear is a critical performance parameter:
- Composite material manufacturers (quality control and incoming inspection)
- Aerospace OEMs and tier suppliers (material specification and procurement)
- Test laboratories (type testing and verification)
- Materials and structural engineers (design validation and failure analysis)
- R&D groups developing textile glass fibre laminates and processing methods
Measuring apparent interlaminar shear strength supports decision-making about laminate stacking, adhesive bonding, damage tolerance and processing controls in aerospace component manufacture.
Related standards
This standard is part of aerospace series testing for composites. Users commonly consult EN 2377 alongside other EN/ISO composite test methods for tensile, compressive, flexural and interlaminar properties, and with aerospace material qualification requirements to build a complete mechanical property dataset.
Keywords: EN 2377:1989, interlaminar shear strength, glass fibre reinforced plastics, aerospace composites, test method, delamination test, textile glass fibre, sheet laminates.
Relations
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
EN 2377:1989 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Glass fibre reinforced plastics - Test method - Determination of apparent interlaminar shear strength". This standard covers: This standard defines a method for the determination of the apparent interlaminar shear strength by delamination of textile glass fibre reinforced plastics produced in sheet form for aerospace use.
This standard defines a method for the determination of the apparent interlaminar shear strength by delamination of textile glass fibre reinforced plastics produced in sheet form for aerospace use.
EN 2377:1989 is classified under the following ICS (International Classification for Standards) categories: 49.025.40 - Rubber and plastics. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 2377:1989 has the following relationships with other standards: It is inter standard links to EN 2833-005:2013. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2377:1989 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Glass fibre reinforced plastics - Test method - Determination of apparent interlaminar shear strengthLuft- und Raumfahrt - Glasfaserverstärkte Kunststoffe - Prüfverfahren zur Bestimmung der scheinbaren interlaminaren ScherfestigkeitSérie aérospatiale - Plastiques renforcés de fibres de verre - Méthode d'essai - Détermination des propriétés en cisaillement apparent interlaminai
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