EN 2561:1995
(Main)Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Tensile test parallel to the fibre direction
Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Tensile test parallel to the fibre direction
This standard specifies the method of determination of the ultimate tensile strength, tensile modulus and, if required, the Poisson'ratio and elongation at failure in tension of carbon fibre reinforced plastics in the form of unidirectional laminates. This method is only applicable to specimens where the axis is parallel to the direction of the fibres.
Luft- und Raumfahrt - Kohlenstoffaserverstärkte Kunststoffe - Unidirektionale Laminate - Zugprüfung parallel zur Faserrichtung
Diese Norm legt das Verfahren zur Bestimmung der Zugfestigkeit, des E-Moduls sowie ggf. der Querdehnungßahl und der Bruchdehnung von kohlenstoffaserverstärkten Kunstoffen in Form von unidirektionalen Laminaten fest. Dieses Verfahren ist bei Proberkörpern anwendbar, deren Längsachse parallel zur Faserrichtung verläuft.
Série aérospatiale - Plastiques renforcés de fibres de carbone - Stratifiés unidirectionnels - Essai de traction parallèlement à la direction des fibres
La présente norme spécifie la méthode de détermination de la résistance en traction, du module de traction et, éventuellement, du coefficient de Poisson et de l'allongement à rupture en traction des plastiques renforcés de fibres de carbone sous forme de stratifiés unidirectionnels. Cette méthode est réservée aux éprouvettes dont l'axe est parallèle à la direction des fibres.
Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Tensile test parallel to the fibre direction
General Information
Overview
EN 2561:1995 is a CEN aerospace-series standard that specifies a tensile testing method for carbon fibre reinforced plastics (CFRP) in the form of unidirectional laminates, with the test axis parallel to the fibre direction. The standard covers the determination of ultimate tensile strength, tensile modulus and, where required, Poisson’s ratio and elongation at failure in tension. It is cited in national implementation (e.g., SIST EN 2561:2001).
Key topics and requirements
- Scope and applicability
- Applies only to unidirectional CFRP specimens whose test axis is parallel to the fibre direction.
- Intended for material characterization rather than multidirectional or woven laminates.
- Measured properties
- Ultimate tensile strength (UTS) - maximum stress at failure along the fibre direction.
- Tensile modulus - stiffness in the fibre direction derived from the stress–strain curve.
- Poisson’s ratio and elongation at failure - optional measurements if required for design or analysis.
- Test methodology (general)
- Standard defines the method for specimen preparation, alignment (parallel to fibres), load application and data evaluation to derive tensile strength and modulus.
- Specifies data reporting and parameter definitions so results are reproducible and comparable across laboratories.
- Aerospace focus
- As an aerospace-series document, EN 2561 is tailored to high-performance CFRP used in aviation and space applications where fibre-direction properties are critical.
Applications
- Design and structural analysis
- Provides the fibre-direction tensile properties needed for laminate design, finite element models, and strength predictions.
- Material specification and acceptance
- Used by OEMs, suppliers and procurement teams to verify that CFRP unidirectional materials meet contractual mechanical requirements.
- Quality assurance and certification
- Test laboratories and certification bodies use EN 2561 test results for material qualification, batch control and traceability.
- R&D and material development
- Material scientists and composite engineers apply this method when developing new carbon fibre prepregs, tapes or processes to characterize baseline tensile performance.
Who should use this standard
- Composite materials test laboratories
- Aerospace and defence manufacturers (OEMs)
- Materials and mechanical engineers working on CFRP components
- Certification and regulatory authorities assessing composite material data
Related standards
- EN 2561 complements other aerospace-series and international standards that cover composite test methods (e.g., interlaminar, transverse and shear tests). For comprehensive material characterization, use EN 2561 alongside other EN/ISO standards relevant to CFRP testing and laminate characterization.
Keywords: EN 2561, carbon fibre reinforced plastics, unidirectional laminates, tensile test, tensile strength, tensile modulus, Poisson’s ratio, aerospace standard.
Frequently Asked Questions
EN 2561:1995 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Tensile test parallel to the fibre direction". This standard covers: This standard specifies the method of determination of the ultimate tensile strength, tensile modulus and, if required, the Poisson'ratio and elongation at failure in tension of carbon fibre reinforced plastics in the form of unidirectional laminates. This method is only applicable to specimens where the axis is parallel to the direction of the fibres.
This standard specifies the method of determination of the ultimate tensile strength, tensile modulus and, if required, the Poisson'ratio and elongation at failure in tension of carbon fibre reinforced plastics in the form of unidirectional laminates. This method is only applicable to specimens where the axis is parallel to the direction of the fibres.
EN 2561:1995 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.
You can purchase EN 2561:1995 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Carbon fibre reinforced plastics - Unidirectional laminates - Tensile test parallel to the fibre directionLuft- und Raumfahrt - Kohlenstoffaserverstärkte Kunststoffe - Unidirektionale Laminate - Zugprüfung parallel zur FaserrichtungSérie aérospatiale - Plastiques renforcés de fibres de carbone - Stratifiés unidirectionnels - Essai de traction parallelement a la direction des fibresAerospace series - C
...
The article is about a standard called EN 2561:1995, which deals with carbon fiber reinforced plastics in the form of unidirectional laminates. The standard specifies a method for determining the ultimate tensile strength, tensile modulus, and other properties of these materials. The method is only applicable to specimens where the axis is parallel to the direction of the fibers.
記事のタイトル：EN 2561:1995 - 航空宇宙シリーズ - 炭素繊維強化プラスチック - 一方向ラミネート - 繊維方向と平行な引張り試験 記事内容：この規格は、一方向ラミネート形状の炭素繊維強化プラスチックの極限引張強度、引張弾性率、必要な場合にはポアソン比と破断引張伸びの決定方法を規定しています。この方法は、軸が繊維の方向に平行な試験片にのみ適用されます。
기사 제목: EN 2561:1995 - 항공 공업 시리즈 - 탄소 섬유 보강 플라스틱 - 단방향 라미네이트 - 섬유 방향에 평행한 인장 시험 기사 내용: 이 표준은 탄소 섬유 보강 플라스틱의 단방향 라미네이트 형태에서 궁극적인 인장 강도, 인장 탄성계수 그리고 필요한 경우 포아송비와 파괴 시 인장 변형도를 결정하는 방법을 지정합니다. 이 방법은 축이 섬유 방향과 평행한 시편에만 적용됩니다.
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...