Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Flexural test parallel to the fibre direction

This standard specifies the method for the determination of the flexural strength and flexural modulus of carbon fibre reinforced plastics in the form of unidirectional laminates by a flexural test. This method is only applicable to specimens where the length is parallel to the direction of the fibres.

Luft- und Raumfahrt - Kohlenstoffaserverstärkte Kunststoffe - Unidirektionale Laminate - Biegeprüfung parallel zur Faserrichtung

Diese Norm legt das Verfahren zur Bestimmung der Biegefestigkeit und des Biegemoduls von kohlenstoffaserverstärkten Kunststoffen in Form von unidirektionalen Laminaten fest. Dieses Verfahren ist bei Probekörpern anwendbar, deren Länge parallel zur Faserrichtung verläuft.

Série aérospatiale - Plastiques renforcés de fibres de carbone - Stratifiés unidirectionnels - Essais de flexion parallèle à la direction des fibres

La présente norme spécifie la méthode de détermination de la contrainte de flexion à la rupture et du module de flexion des plastiques renforcés de fibres de carbone sous forme de stratifiés unidirectionnels. Cette méthode est réservée aux éprouvettes dont la longueur est parallèle à la direction des fibres.

Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Flexural test parallel to the fibre direction

General Information

Status
Published
Publication Date
18-Mar-1997
Withdrawal Date
29-Sep-1997
Technical Committee
ASD-STAN - Aerospace
Drafting Committee
ASD-STAN/D 4 - Metallic
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
19-Mar-1997
Completion Date
19-Mar-1997

Overview

EN 2562:1997 (Aerospace series) specifies a standardized method for determining the flexural strength and flexural modulus of carbon fibre reinforced plastics (CFRP) in the form of unidirectional laminates when tested with the specimen length parallel to the fibre direction. Published by CEN, this aerospace-focused standard provides a repeatable laboratory procedure to obtain comparable mechanical property data for design, qualification and quality control of unidirectional CFRP materials.

Key Topics

The standard covers the essential elements needed to perform and report flexural testing of unidirectional carbon-fibre laminates, including:

  • Scope and applicability - method limited to specimens with length parallel to fibre direction and to unidirectional laminate configurations.
  • Specimen preparation and conditioning - requirements for sample geometry, surface quality and environmental conditioning prior to testing.
  • Test execution - standardized procedures for loading, measurement of deflection and failure observation to determine flexural properties.
  • Calculation and reporting - determination of flexural strength and flexural modulus from measured load-deflection data, plus required test data, tolerances and result presentation.
  • Test equipment and calibration - expectations for test machines, fixtures and measuring devices to ensure valid, reproducible results.
  • Traceability and documentation - recommended test record elements for material certification and quality assurance.

(Note: EN 2562:1997 defines the method and reporting requirements; users should follow the published text for exact procedural details.)

Applications

EN 2562:1997 is primarily used in aerospace and high-performance composite industries where accurate flexural characterization of unidirectional CFRP is critical. Typical uses include:

  • Material qualification and batch acceptance testing for aerospace components.
  • Input data for structural design, finite element analysis and failure prediction.
  • Comparative evaluation of manufacturing processes, resin systems or fibre types.
  • Quality control in composite production and supplier certification.
  • Test laboratories performing standardized mechanical tests for industry customers.

Key users include materials engineers, composite designers, structural analysts, aerospace manufacturers, test laboratories and certification bodies.

Related Standards

EN 2562:1997 is part of the Aerospace series of composite testing standards published by CEN. Organizations and laboratories often use it alongside other material-specific or orientation-specific composite test standards for a complete mechanical characterization program (e.g., standards addressing tensile, shear or impact properties). National adoptions (for example SIST EN 2562:2001) reflect harmonized implementation across member bodies.

Keywords: EN 2562:1997, flexural test, carbon fibre reinforced plastics, unidirectional laminates, flexural strength, flexural modulus, aerospace standard, CEN.

Frequently Asked Questions

EN 2562:1997 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Flexural test parallel to the fibre direction". This standard covers: This standard specifies the method for the determination of the flexural strength and flexural modulus of carbon fibre reinforced plastics in the form of unidirectional laminates by a flexural test. This method is only applicable to specimens where the length is parallel to the direction of the fibres.

This standard specifies the method for the determination of the flexural strength and flexural modulus of carbon fibre reinforced plastics in the form of unidirectional laminates by a flexural test. This method is only applicable to specimens where the length is parallel to the direction of the fibres.

EN 2562:1997 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.

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Standards Content (Sample)


SLOVENSKI STANDARD
01-junij-2001
Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates -
Flexural test parallel to the fibre direction
Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Flexural
test parallel to the fibre direction
Luft- und Raumfahrt - Kohlenstoffaserverstärkte Kunststoffe - Unidirektionale Laminate -
Biegeprüfung parallel zur Faserrichtung
Série aérospatiale - Plastiques renforcés de fibres de carbone - Stratifiés unidirectionnels
- Essais de flexion parallele a la direction des fibres
Ta slovenski standard je istoveten z: EN 2562:1997
ICS:
49.025.40 Guma in polimerni materiali Rubber and plastics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali
...

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La norme EN 2562:1997, intitulée "Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Flexural test parallel to the fibre direction", constitue un cadre essentiel pour l'évaluation des matériaux composites renforcés par des fibres de carbone. Le champ d'application de cette norme spécifie clairement la méthode de détermination de la résistance à la flexion et du module de flexion de ces plastiques renforcés, en se concentrant sur les laminés unidirectionnels. Une des forces majeures de la norme réside dans sa rigueur méthodologique. En définissant précisément le protocole de test à travers le test de flexion, elle garantit des résultats fiables et reproductibles. Ce niveau de standardisation est primordial dans le secteur aérospatial, où la performance des matériaux en conditions réelles est cruciale pour la sécurité et l'efficacité des équipements. De plus, la norme est particulièrement pertinente pour les fabricants et les ingénieurs œuvrant dans le domaine des composites, car elle fournit des directives claires pour la mise en œuvre du test dans un cadre de production normé. La focalisation sur les échantillons dont la longueur est parallèle à la direction des fibres permet d'obtenir des données qui reflètent fidèlement les caractéristiques mécaniques des matériaux, un aspect essentiel dans la conception de pièces soumises à des contraintes flexurales importantes. En intégrant cette norme dans leur processus de développement, les entreprises peuvent s'assurer que leurs matériaux composites renforcés par des fibres de carbone répondent aux exigences rigoureuses de l'industrie aérospatiale, tout en facilitant la communication technique entre les différents acteurs du secteur. C’est donc une norme qui, par sa spécificité et sa précision, contribue de manière significative à l'innovation et à la qualité des produits dans un domaine où la performance est de mise.

EN 2562:1997 표준은 항공 우주 시리즈에서 탄소 섬유 강화 플라스틱(Unidirectional laminates)의 굽힘 강도 및 굽힘 계수를 측정하기 위한 방법을 명확히 규정하고 있습니다. 이 표준의 범위는 일방향 적층체의 굽힘 시험을 통해서만 적용 가능하며, 시험 샘플의 길이가 섬유의 방향과 평행한 경우에만 적용된다는 점을 강조합니다. 이 표준의 강점 중 하나는 탄소 섬유 강화 플라스틱의 물성을 정량적으로 평가할 수 있는 신뢰할 수 있는 방법을 제공합니다. 이는 항공 우주 산업에서의 안전성과 성능을 보장하는 데 필수적입니다. 또한, 굽힘 시험은 상대적으로 간단하며 실험실에서 반복적인 시행이 가능하여, 연구개발 및 품질 관리의 일환으로 매우 유용한 도구가 됩니다. 더불어, EN 2562:1997 표준은 탄소 섬유 강화 플라스틱 분야에서 국제적인 통일성을 추구하는 데 중요한 역할을 하며, 다양한 산업 분야에서 해당 재료를 사용하는 연구와 개발에 기여합니다. 특히, 항공 우주 분야에서의 응용은 이 표준의 중요성을 더욱 부각시키며, 탄소 섬유 복합재료의 품질을 보장하기 위한 기준으로 자리잡고 있습니다. 이와 같은 특성은 EN 2562:1997의 지속적인 relevancy를 보장하며, 관련 업계 종사자들에게 매우 유익한 참고자료로 기능합니다.

The EN 2562:1997 standard is a critical document in the aerospace series, specifically addressing carbon fibre reinforced plastics in the form of unidirectional laminates. Its primary focus is on the determination of flexural strength and flexural modulus through a standardized flexural test conducted parallel to the fibre direction. This specificity ensures that the testing method remains precise and relevant for applications where the orientation of fibres significantly influences material performance. One of the notable strengths of this standard is its well-defined scope, which enhances its relevance to engineers and material scientists working in the aerospace sector. By concentrating on unidirectional laminates, the standard accommodates the specific needs of manufacturers and researchers aiming to optimize the performance of carbon fibre composites in aerospace applications. This targeted approach enhances reliability, consistency, and applicability, making it an essential reference in design and quality control processes. Additionally, the standard promotes uniformity in testing, which is crucial for comparability in research and development phases. By stipulating a specific testing method that measures flexural characteristics under controlled conditions, it facilitates the advancement of materials science within the aerospace industry. Moreover, this standard aids in ensuring that materials meet rigorous aerospace specifications, thereby enhancing safety and performance standards. Overall, EN 2562:1997 plays a vital role in standardizing the evaluation of carbon fibre reinforced plastics, providing a dependable framework that supports innovation and reliability in aerospace engineering. Its applicability to unidirectional laminates and emphasis on fibre direction in testing are key aspects that position it as a valuable asset in the aerospace materials domain.

Die Norm EN 2562:1997 ist ein bedeutendes Dokument für den Bereich der Luft- und Raumfahrttechnik, das sich mit den mechanischen Eigenschaften von kohlenstofffaserverstärkten Kunststoffen in Form von unidirektionalen Laminaten beschäftigt. Der Schwerpunkt dieser Norm liegt auf der Festlegung eines Verfahrens zur Bestimmung der Biegefestigkeit und des Biegemoduls, was für die Bewertung der Leistungsfähigkeit von Materialien in der Luftfahrtindustrie von zentraler Bedeutung ist. Die Norm bietet eine präzise Beschreibung der Prüfmethoden, die sicherstellen, dass die Ergebnisse reproduzierbar und vergleichbar sind. Die Anwendbarkeit des Verfahrens beschränkt sich auf Proben, deren Länge parallel zur Richtung der Fasern verläuft. Dies ist eine wichtige Einschränkung, da die mechanischen Eigenschaften von kohlenstofffaserverstärkten Kunststoffen stark von der Ausrichtung der Fasern abhängen. Die Fokussierung auf unidirektionale Laminaten in Verbindung mit den flexural tests ermöglicht es Ingenieuren, ein fundiertes Verständnis der Materialverhalten unter flexuralen Belastungen zu gewinnen. Ein weiterer Pluspunkt dieser Norm ist die klare und umfassende Dokumentation der erforderlichen Prüfbedingungen, einschließlich der notwendigen Apparaturen und der Vorbereitung der Proben. Dies trägt zur Konsistenz der Ergebnisse bei und unterstützt die Industrie dabei, sicherzustellen, dass ihre Materialien den strengen Anforderungen der Luftfahrtstandards gerecht werden. Die Relevanz der EN 2562:1997 kann nicht hoch genug eingeschätzt werden, da sie einen wesentlichen Beitrag zur Entwicklung sicherer und leistungsfähiger Flugzeuge leistet. Kohlenstofffaserverstärkte Kunststoffe sind aufgrund ihres geringen Gewichts und ihrer hohen Festigkeit eine bevorzugte Wahl im Luftfahrtsektor. Daher ist es entscheidend, dass diese Materialien gründlich getestet und ihre Eigenschaften genau erfasst werden, um die Sicherheit und Effizienz der Luftfahrttechnik zu gewährleisten. Die Norm unterstützt außerdem die Innovationsbemühungen in der Materialwissenschaft, indem sie eine Grundlage für die Entwicklung neuer Produkte und Anwendungen bietet. Insgesamt zeichnet sich die Norm EN 2562:1997 durch ihre detaillierte und fachlich fundierte Herangehensweise aus, die sowohl den Anforderungen der Industrie als auch den neuesten Entwicklungen in der Materialforschung Rechnung trägt. Sie stellt sicher, dass die charakterisierten Eigenschaften der getestet Materialien verlässlich und nachvollziehbar sind, was von entscheidender Bedeutung für die strengen Sicherheits- und Leistungsstandards in der Luftfahrtindustrie ist.

EN 2562:1997は、航空宇宙分野における炭素繊維強化プラスチックの一方向性ラミネートに関する重要な基準を提供しています。この標準は、炭素繊維強化プラスチックの曲げ強度および曲げ弾性率を弦方向での曲げ試験によって決定する方法を明確に規定しており、特に試験片の長さが繊維方向と平行であることを前提としています。 この標準の強みは、炭素繊維強化プラスチックの特性を正確に評価できる明確な手法を提供する点にあります。特に、航空宇宙産業における材料選定や品質管理において、信頼性の高いデータを得るための基盤を築いています。また、曲げ試験は材料の実用的な応用において非常に重要な特性を反映するため、この標準の適用範囲は非常に広範です。 さらに、この標準は、航空機や宇宙船などの構造物に使用される材料が持つべき強度や耐久性に関する要求事項を満たすための指針を提供し、業界全体での一貫した評価が可能となります。これにより、設計者やエンジニアは、信頼できる材料データに基づいてクリティカルな判断を下すことができるようになります。 EN 2562:1997の関連性は、航空宇宙分野の進化に伴いますます高まっており、新しい素材や技術の導入に対しても柔軟に適応できる基準として機能します。このため、炭素繊維強化プラスチックに関連する研究開発や商業製品の品質保証にも不可欠なドキュメントとなっています。