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Astm d638 pdf pdf#
Therefore, it is advisable to refer to that material specification before using this test method.Table 1 in Classifcation D 4000 lists the ASTM aterials standards that currently exist. ASTM D638-03 pdf download 05-03-2020 comment ASTM D638-03 ,Standard Test Method for Tensile Properties of Plastics. For many materials, there may be a specification that requires the use of this test method, but with some procedural modifications that take precedence when adhering to the specification. ASTM D790-03 for static bending (ASTM, 2003a) and ASTM D5420-04 for impact. These data are also useful for qualitative characterization and for research and development. absorption and swelling (ASTM, 1998), ASTM D638-03 for tension (ASTM, 2003b). I hope everyone has a heart of gratitude, and I also hope every partner can share some standards you often use.ĪSTM D638-03 covers the determination of the tensile properties of unreinforced and reinforced plastics in the form of standard dumbbell-shaped test specimens when tested under defined conditions of pretreatment, temperature, humidity, and testing machine speed.ĭefinitions-definitions of terms applying to this test method appear in Terminology D 883 and Annex A2.ĪSTM D638-03 is designed to produce tensile property data for the control and specification of plastic materials. other thicknesses may be accomodated upon request, depending on the application. The standard is shared by an American netizen. astm d638 type iv plastic dimensions are in mm a range of typical thickness values is given. The result of scanning electron microscope (SEM) micrographs of the surfaces of the fibers indicted an improvement in bonding of the fiber bundles prior to lamination with natural rubber as a result of surface treatment which resulted in its higher tensile strength.ASTM D638-03,Standard Test Method for Tensile Properties of Plastics. Variation in properties due to fiber orintations was observed indicating a higher value of properties in the 0° fiber orientation than in 45° and 90° directions. Surface modification of the BSF with a mixture of 4% NaOH and 2% Na2SO3 increased the tensile strength and elastic modulus of the composite to 4.03 MPa and 147.34 MPa respectively from 3.12 MPa and 84.30 MPa of the untreated.
The results of the tensile loading in 0°, 45° and 90° to the fiber directions of the composite with fiber mass fraction of 30% were studied. This test method is intended to be used with the modified ASTM D638-10 Micro-Tensile Test Method (Type V: Notchedâ. Unidirectional BSF reinforced natural rubber (NR) lamina composites were made using compression moulding method. Journal of Minerals and Materials Characterization and Engineering,ĪBSTRACT: A mixture of NaOH and Na2SO3 was used in modification of banana stem fibers (BSF). Natural Fiber, Banana Fiber, Natural Rubber, Tensile Properties, SEM, Fiber Orientation Ravindranatha Menon, Camelus Sunday Obayi, Augustin Dinobi Omah has been cited by the following article:Įffect of Surface Treatment and Fiber Orientation on the Tensile and Morphological Properties of Banana Stem Fiber Reinforced Natural Rubber CompositeĪUTHORS: Ikechukwu Christian Ezema, A. ASTM D638-10 (2010) Standards Test Method for Tensile Propeties of Plastics: Annual Book of ASTM Standards.
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