EN 15336:2007 PDF

Name: EN 15336:2007 — Adhesives - Determination of the time to rupture of bonded joints under static load ( ISO 15109:1998 modified)
SKU: EN 15336:2007
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Adhesives - Determination of the time to rupture of bonded joints under static load ( ISO 15109:1998 modified)

Название (английский):

EN 15336:2007

Adhesives - Determination of the time to rupture of bonded joints under static load ( ISO 15109:1998 modified)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 28 февраля 2007 г.
Издание:: CEN EN 15336 edition 1 version 1
ICS:: 83.180

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Описание (английский):

This European Standard describes a procedure for the determination of the time to failure of a bonded joint, using a specimen which is statically loaded under specified conditions. This method can only be used for comparing adhesives, and the results cannot be used for design purposes.

Abstract

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Overview

EN 15336:2007 (CEN) specifies a laboratory procedure to determine the time to rupture of bonded lap-shear joints subjected to a static load. The method measures how long a bonded specimen endures a specified stress before failure and is intended for comparative evaluation of adhesives rather than for structural design. Key outcomes include time-to-failure, failure pattern classification and stress-vs-time relationships useful for product assessment and quality control.

Key Topics

Principle: Measure time to rupture of a lap-shear specimen under a defined static load.

Apparatus: A vertical test rig that secures specimens at one end and applies weights at the other. The rig must avoid cross-specimen vibration and maintain controlled environmental conditions. A timer with ±1 % accuracy is required.

Specimens:

Adherends: metal, rigid plastic or rigid fibre-reinforced plastic.
Shape: lap-shear geometry per the standard (see Figure 1 in the standard document).
Bond-line control: use glass spheres (≤ 0.5 % mass of adhesive) or wire spacers (excluded from final test area).
Surface preparation: follow adhesive or adherend manufacturer instructions or EN 13887.
Conditioning: use one of the standard atmospheres in EN ISO 291.
Quantity: at least three specimens per stress level.

Procedure: Attach specimens, allow equilibrium in the chosen atmosphere, apply defined loads (often a percentage of tensile lap-shear strength from EN 1465), and record time to failure and failure mode (EN ISO 10365).

Results: Plot stress (ordinate) against average time to failure (abscissa) on a logarithmic time scale.

Applications

This method provides practical value in contexts such as:

Comparative adhesive testing: rank adhesives by time-to-rupture under given stresses.

Quality control: verify consistent adhesive performance between batches or processes.

R&D: evaluate formulation changes, surface treatments, or curing regimes on long-term static performance.

Note: EN 15336:2007 results are specifically for comparison and test method development - they are not suitable for direct structural design or service-life prediction without additional data.

Practical considerations

Ensure accurate bond-line thickness and consistent surface treatment for comparable data.

Maintain controlled environment during conditioning and testing to reduce variability.

Record all identification details, specimen preparation, atmosphere, bond-line thickness, number of specimens, failure patterns and the stress vs time-to-failure graph in the test report as required by the standard.

This structured approach helps laboratories produce repeatable comparative data for adhesive selection, process control and formulation optimization while complying with CEN requirements.

EN 15336:2007 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Practical considerations

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