EN 2155-13:1993

Aerospace series - Test methods for transparent materials for aircraft glazing - Part 13: Determination of temperature at deflection under load

This standard specifies a procedure for determining the temperature at which an arbitrary deformation occurs when the specimens are subjected to arbitrary bending loads, under conditions of continually rising temperatures.

Luft- und Raumfahrt - Prüfverfahren für transparente Werkstoffe zur Verglasung von Luftfahrzeugen - Teil 13: Bestimmung der Temperatur bei Durchbiegung unter Belastung

Diese Norm beschreibt ein Verfahren zur Bestimmung der Temperatur, bei der die Proben unter bestimmter Biegebelastung und kontinuierlicher Temperatursteigerung eine bestimmte Durchbiegung zeigen.

Série aérospatiale - Méthodes d'essais pour matériaux transparents pour vitrages aéronautiques - Partie 13: Détermination de la température de fléchissement sous charge

La présente norme spécifie une méthode de détermination de la température à laquelle apparaîte une déformation arbitraire lorsque les éprouvettes sont soumises à l'action fléchissante de charges arbitraires, sous une élévation continue de la température.

Aerospace series - Test methods for transparent materials for aircraft glazing - Part 13: Determination of temperature at deflection under load

General Information

• Status: Published
• Publication Date: 25-Feb-1993
• Withdrawal Date: 30-Aug-1993
• ICS: 49.045 - Structure and structure elements
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4 - Metallic
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 26-Feb-1993
• Completion Date: 26-Feb-1993
• Ref Project: SIST EN 2155-13:2001 - Aerospace series - Test methods for transparent materials for aircraft glazing - Part 13: Determination of temperature at deflection under load

Overview

EN 2155-13:1993 is a European standard developed by CEN that specifies test methods for transparent materials used in aircraft glazing. This particular part, Part 13, focuses on the determination of the temperature at which transparent aircraft glazing materials undergo deformation under load. Understanding this property is critical for ensuring the structural integrity and safety of aircraft windows and canopies under operational temperature and stress conditions.

This standard defines a systematic procedure for measuring the temperature at which deflection occurs when specimens are subjected to bending loads under conditions of continually rising temperature. It is essential for aerospace manufacturers and materials engineers who need to assess performance limits of glazing materials exposed to thermal and mechanical stresses.

Key Topics

• Test Methodology
  EN 2155-13:1993 lays out a precise procedure to apply bending loads to transparent material samples while gradually increasing temperature until deflection occurs.

• Temperature Measurement
  The standard determines the critical temperature at which an arbitrary deformation (deflection) is first observed under a specified load.

• Material Types
  Applicable specifically to transparent materials designed for aircraft glazing, including acrylics, polycarbonates, and glass variants used in aerospace environments.

• Load Conditions
  Describes the application of bending loads, emphasizing repeatability and accuracy to simulate in-service stresses.

• Safety and Compliance
  Ensures materials meet the stringent temperature resistance requirements needed to withstand operational and environmental conditions in aircraft.

Applications

• Aircraft Window Design
  Provides critical data to aerospace engineers for selecting transparent materials that maintain integrity at elevated temperatures and mechanical loads.

• Quality Control Testing
  Enables manufacturers to compare batch-to-batch consistency and verify adherence to material specifications for glazing components.

• Material Development
  Supports R&D efforts in creating advanced, heat-resistant transparent polymers and composites optimized for aerospace applications.

• Regulatory Compliance
  Assists certification bodies in verifying that aircraft glazing meets European aerospace standards and safety regulations.

• Failure Analysis
  Helps identify temperature-related deformation thresholds that may contribute to in-service failures or material degradation.

Related Standards

• EN 2155 Series
  This part is one of several test methods in the EN 2155 aerospace series addressing properties of transparent materials for aircraft glazing, including impact resistance, optical qualities, and weathering durability.

• ISO 9001
  While not material-specific, ISO 9001 quality management principles complement EN 2155-13 by ensuring consistent testing and manufacturing processes.

• ASTM D648
  Internationally recognized standard for determining the heat deflection temperature of plastics, useful for comparative testing of aerospace glazing materials.

• MIL-PRF-8184
  U.S. military specification for transparent plastic materials used in aircraft canopies and windows, which aligns with the performance focus of EN 2155-13.

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By following EN 2155-13:1993, aerospace industries can reliably measure critical thermal deformation thresholds of transparent glazing materials, enhancing aircraft safety and performance under demanding conditions. This standard remains a key reference for engineers and manufacturers engaged in the design and assessment of aircraft transparent components.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Test methods for transparent materials for aircraft glazing - Part 13: Determination of temperature at deflection under loadLuft- und Raumfahrt - Prüfverfahren für transparente Werkstoffe zur Verglasung von Luftfahrzeugen - Teil 13: Bestimmung der Temperatur bei Durchbiegung unter BelastungSérie aérospatiale - Méthodes d'essais pour matériaux transparents pour vitrages aéronautiques - Partie 13: Détermination de la température de fléchissement
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