Tensile testing of plastics iso 5271 iso 5271 tensile testing provides key data on tensile strength, modulus and elongation of plastics at ambient, elevated or reduced temperatures. Tensile testing in nonambient conditions, p18 flexure testing and strain measurement, p19 increasing throughput and reproducibility using automated specimen handling systems, p20. This test method uses standard dumbell or dogbone shaped specimens under 14mm of thickness. Tensile testing is a destructive test process that provides information about the tensile strength, yield strength, and ductility of the metallic material. Pdf standard test method for tensile properties of plastics 1.
Four different materials were tested, including 6061t6 aluminum alloy. Plastics tensile testing to iso 527 using the autox750. However, because of the high degree of sensitivity exhibited by many plastics to rate of straining and. Tensile testing, also known as tension testing, is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. This test is a destructive method, in which a specimen of a standard shape and dimensions prepared.
Astm d638 specifies methods for testing the tensile strength of plastics and other. By simply measuring the force required to pull a test specimen. These include several types of selftightening, manual, hydraulic and pneumatic versions that are necessary. Tensile testing is a destructive mechanical testing method that subjects a sample to uniaxial tension until failure. Our tensile testing services allow us to deliver critical information relating. Here is a list of common test methods used to evaluate plastics. Astm d638 is one of the most common plastic strength specifications and covers the tensile properties of unreinforced and reinforced plastics. In these applications, it is important to understand the mechanical strength properties of these plastics. Plastics determination of tensile properties iso 527 2. The effect of heat on the mechanical properties of glassy polymers t.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The type iv specimen shall be used for testing nonrigid plastics with a. Pdf astm d638 tensile properties of plastics judeson. The tensile test in accordance with this standard is used to assess the behaviour of plastics under uniaxial tensile stress. Tensile testing also known as tension testing,is a fundamental materials science test in which a sample is subjected to a controlled tension until failure. In the standardized tensile test, results are based on a defined pulloff speed on. Standard test method for tensile properties of plastics1. These test systems come in a variety of force capacities and frame styles, ranging from 1column tabletops to larger 2column floorstanding. These include several types of selftightening, manual, hydraulic and pneumatic versions that are necessary for positive gripping. Most iso 5272 testing is performed on a table top universal testing machine. A universal testing machine tensile testing machine is. Astm d638 14 standard test method for tensile properties of. Iso 5272 defines specimen to be used for tensile tests. Tensile test on plastics to iso 527 with makroxtens.
Standard test method for tensile properties of plastics. The object of this experiment is to measure the tensile properties of two polymeric materials, steel and aluminum at a constant strain rate. Mechanical and physical testing of biocomposites, fibrereinforced composites and hybrid composites, 2019. Standard test method for tensile properties of plastics 1. D618 practice for conditioning plastics for testing d651 test method for test for tensile strength of molded electrical insulating materials withdrawn 19893 d882 test method for. Tensile tests measure the force required to break a plastic sample specimen and the extent to which the specimen stretches or elongates to that breaking. Tensile testing of plastics per astm d638 is a widely used and extremely important test method. The ability to resist breaking under tensile stress is one of the most important and widely measured properties of materials used. The tensile testing laboratory was conducted using an instron load frame and the bluehill data acquisition software. Iso 20753 defines specimen for testing plastics in a general way. Nason, symposium on plastics, american society for testing materials, philadelphia, 1944. The autox750 automatic contacting extensometer meets iso 527 for tensile testing of plastics. Astm d63814 standard test method for tensile properties. As the characteristics of plastics are influenced by external temperature changes, testing should also be conducted at high and low temperatures.
This test is a destructive method, in which a specimen of a standard shape and dimensions prepared according to astm d 638tandard test method for tensile properties of. They tell you how to check tensile and flexural properties, stiffness, impact, hardness, flammability, etc. D63814 standard test method for tensile properties of plastics. This tensile test is similar to astm d638 but is specifically for materials that are less than 1mm 0. Achieving reliable results in tensile testing of plastics. Materials and component testing over a wide temperature range, including tests on plastics e. Pretty vague question, because we have no idea of the context or intended application of the plastics. D618 practice for conditioning plastics for testing d651 test method for test for tensile strength of molded electrical insulating materials withdrawn 19893 d882 test method for tensile properties of thin plastic sheeting d883 terminology relating to plastics d1822 test method for tensile impact energy to break plastics and electrical. Iso 20753 defines specimen for testing plastics in a general way iso 5272 defines specimen to be used for tensile tests types 1a a1 and 1b a2 are standard specimen for comparable. Contrary to the continuity and isotropy of injected plastics, the layer by. Testing and materials test methods or other test specifications, and be sure the correct test speeds, loading profile and calculations are used. The test method for determining the tensile properties of plastics is outlined in iso 52712.
A 5kn or 10kn 1125 or 2250 lbf system is most common, but as reinforced plastics and composites increase in strength, higher capacity units such as 30 or 50 kn systems may be required. Our facility houses a mix of state of the art plastic testing equipment and bespoke designed plastic testing rigs allowing us to undertake a wide range of different test techniques. Iso 5271 determination of tensile properties of plastics. Tensile property testing of plastics ultimate tensile strength. The testing is carried out on selected specimens under specific. However, because of the high degree of sensitivity exhibited by many plastics to rate of straining and environmental conditions, data obtained by this test method cannot be considered valid for applications involving loadtime scales or environments widely different from those of this test method. How to perform an astm d638 plastic tensile strength test admet. In addition, the wintest software includes all applicable calculations like yield stress, strain, e modulus, uts, etc. A wide variety of grips are available for tensile testing of plastics. Intertek laboratories provide astm d638 plastics tensile testing data generation services including tensile strength, tensile modulus and. Pdf standard test method for tensile properties of. Tensile testing provides data on the integrity and safety of materials, components and products, helping manufacturers ensure that their finished products are fitforpurpose and. A 5kn or 10kn 1125 or 2250 lbf system is most common, but as reinforced plastics.
925 1486 1265 1331 944 737 288 962 1535 1624 1581 871 554 1296 188 507 536 386 1334 250 770 820 1352 896 185 423 650 449 513 1497 55