ISO was prepared by Technical Committee ISO/TC 61, Plastics, This second edition cancels and replaces the first edition (ISO ), which has . ISO (E). PDF disclaimer. This PDF file may contain embedded typefaces. In accordance with Adobe’s licensing policy, this file may. Buy ISO (R) PLASTICS – DETERMINATION OF CREEP BEHAVIOUR – PART 2: FLEXURAL CREEP BY THREE-POINT LOADING from SAI.
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Since this type of test runs over a long period of time, it is typical to test multiple specimens at once. Experience the ease of intuitive and structured operation that reflects your lab processes.
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Creep tests on plastics
You may delete a document from your Alert Profile at any time. International Classification for Standards ICS is an international classification system for technical standards.
During a creep test, specimens are subjected to a static load. The standard ISO specimen has dimensions of 10 x 4 x 80 mm and is taken from the mid-section of the multi-purpose specimen. Data for research or quality-control purposes may use the change in distance between the grips nominal extension. This corresponds to the load placed on many components made of plastic. Your Alert Profile lists the documents that will be monitored.
As the voice of the U. Data for engineering-design purposes requires the use of extensometers to measure the gauge length of the specimen. Using this data, creep curves can be generated, which depict the long-term behavior of plastics. Tensile creep modulus and the nominal tensile creep modulus Creep tensile strength Creep curves with logarithmic time axis Creep module time curves with logarithmic time axis Isochrone stress-strain curves Recovery strain curve. Flexural creep by three-point loading This document has been re-assessed by the committee, and judged to still be up to date.
Check out our FAQs. Proof sent to secretariat or FDIS ballot initiated: Specimen strain is recorded by a state-of-the-art measuring system. It is designed to cover every economic sector and virtually every activity of the humankind where technical standards may be used. If you need help with the purchase or have any queries please email enquiries standards. The method is suitable for use with rigid and semi-rigid non-reinforced, filled and fibre-reinforced plastics materials in the form of rectangular bars moulded directly or cut from sheets or moulded articles.
Consequently, when precise comparative results are required, these factors must be carefully controlled. Specifies a method for determining the flexural creep of plastics in the form of standard test specimens under specified conditions such as those of pretreatment, temperature and humidity.
The specimen strain is recorded over the course of the test, which often lasts 1, hours. This part of the standard specifies a method for determining the flexural creep of plastics in the form of standard test specimens under specified conditions such as those of pre-treatment, temperature and humidity.
The test results are as follows: Determination of flexural properties. Deflection is measured using either the die movement after correction to the self-deformation of the test arrangement or using a video measuring system. The electromechanical creep testing machine, KappaMultistationis equipped with a load cell and one drive per test axis. Flexural creep may 89-2 significantly with differences iiso specimen preparation and dimensions and in the test environment. The testing machines are equipped with multiple test axes.
Add to Alert PDF. Conditioning is an important part of the test. The method is suitable for use with rigid and semi-rigid non-reinforced, filled and fibre-reinforced plastics materials see ISO for definitions in the form of dumb-bell-shaped test specimens moulded directly or machined from sheets or moulded articles.
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It is necessary to prevent thermal expansion due to temperature fluctuations, which overlap the creep strain. The method is intended to provide data for engineering-design and research 89-2 development purposes.