La présente partie de l'ISO 6603 spécifie une méthode de détermination du comportement au choc avec perforation des plastiques rigides sous forme d'éprouvettes planes, au moyen d'instruments de mesurage des forces et des flèches. Elle s'applique si une courbe force-flèche ou force-temps, enregistrée pour une vitesse nominale constante du percuteur, est nécessaire pour obtenir une caractérisation détaillée du comportement au choc. L'ISO 6603-1 peut être utilisée lorsqu'il est suffisant de caractériser le comportement au choc des plastiques par une valeur seuil de l'énergie de rupture par choc à partir d'un grand nombre d'éprouvettes. La présente partie de l'ISO 6603 n'a pas pour but de donner une interprétation du mécanisme qui se produit en chaque point de la courbe force-flèche. Ces interprétations relèvent de la recherche scientifique. NOTE Voir également l'article 1 de l'ISO 6603-1:2000.
La présente partie de l'ISO 6603 spécifie une méthode de détermination du comportement au choc avec perforation des plastiques rigides sous forme d'éprouvettes planes, au moyen d'instruments de mesurage des forces et des flèches. Elle s'applique si une courbe force-flèche ou force-temps, enregistrée pour une vitesse nominale constante du percuteur, est nécessaire pour obtenir une caractérisation détaillée du comportement au choc. L'ISO 6603-1 peut être utilisée lorsqu'il est suffisant de caractériser le comportement au choc des plastiques par une valeur seuil de l'énergie de rupture par choc à partir d'un grand nombre d'éprouvettes. La présente partie de l'ISO 6603 n'a pas pour but de donner une interprétation du mécanisme qui se produit en chaque point de la courbe force-flèche. Ces interprétations relèvent de la recherche scientifique.
NOTE Voir également l'article 1 de l'ISO 6603-1:2000.
Ce document prescrit une méthode pour la détermination du comportement sous choc multiaxial de matières plastiques sous forme d'échantillons plats. Il est utilisé lorsque la caractérisation du comportement à l'impact repose sur les relations force-déformation ou force-temps à vitesse de percuteur pratiquement constante.
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">This document specifies a test method for the determination of puncture impact properties of rigid plastics, in the form of flat specimens, using instruments for measuring force and deflection. It is applicable if a force-deflection or force-time diagram, recorded at nominal constant striker velocity, is necessary for detailed characterization of the impact behaviour.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">The test method is applicable to specimens with a thickness between 1 mm to 4 mm.</span></p> <p class="MsoBodyText" style="tab-stops: 19.85pt 39.7pt 48.25pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">The method is suitable for use with the following types of material:</span></p> <p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">—<span style="mso-tab-count: 1;"> </span>rigid thermoplastic moulding and extrusion materials, including filled, unfilled and reinforced compounds and sheets;</span></p> <p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">—<span style="mso-tab-count: 1;"> </span>rigid thermosetting moulding and extrusion materials, including filled and reinforced compounds, sheets and laminates;</span></p> <p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">—<span style="mso-tab-count: 1;"> </span>fibre-reinforced thermoset and thermoplastic composites incorporating unidirectional or multi-directional reinforcements such as mats, woven fabrics, woven rovings, chopped strands, combination and hybrid reinforcements, rovings, milled fibres and sheets made from pre-impregnated materials (prepregs).</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">The method is also applicable to specimens which are either moulded or machined from finished products, laminates and extruded or cast sheet.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">The test results are comparable only if the conditions of preparation of the specimens, their dimensions and surfaces as well as the test conditions are the same. In particular, results determined on specimens of different thickness cannot be compared with one another (see </span><span class="citeapp"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; color: black; mso-color-alt: windowtext;">Annex E</span></span><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">). Comprehensive evaluation of the reaction to impact stress can be obtained by determinations made as a function of impact velocity and temperature for different material variables, such as crystallinity and moisture content.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">The impact behaviour of finished products cannot be predicted directly from this test, but specimens may be taken from finished products (see above) for tests by this method.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">Test data developed by this method is not intended to be used for design calculations. However, information on the typical behaviour of the material can be obtained by testing at different temperatures and impact velocities (see </span><span class="citeapp"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; color: black; mso-color-alt: windowtext;">Annex D</span></span><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">) by varying the thickness (see <span class="citeapp"><span style="color: black; mso-color-alt: windowtext;">Annex E</span></span>) and by testing specimens prepared under different conditions.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-theme-font: minor-fareast;">It is not the purpose of this document to give an interpretation of the mechanism occurring on every particular point of the force-deflection diagram. These interpretations are a task for scientific research.</span></p>
COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.
Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!
Request your free, no-obligation live demo
I discover COBAZ