ChinaAutoRegs\uff5cGB\/T 1040.1-2018 \u82f1\u6587\u7248\/English\/\u7ffb\u8bd1\/\u5851\u6599 \u62c9\u4f38\u6027\u80fd\u7684\u6d4b\u5b9a \u7b2c1\u90e8\u5206\uff1a\u603b\u5219
\nPlastics\u2014Determination of tensile properties\u2014Part 1:General principles<\/p>\n
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1 SCOPE<\/p>\n
This part of GB\/T 1040 specifies the general principles for determining the tensile properties of plastics and plastic composites under defined conditions. Several different types of test specimen are defined to suit different types of material which are detailed in other parts of this standard.
\nThe methods are used to investigate the tensile behavior of the test specimens and for determining the tensile strength, tensile modulus and other aspects of the tensile stress\/strain relationship under the conditions defined.
\nThe methods are applicable to the following materials:
\n\uf0be rigid and semi-rigid (see 3.12 and 3.13) moulding, extrusion and cast thermoplastic materials, including filled and reinforced compounds in addition to unfilled types; rigid and semi-rigid thermoplastics sheets and films;
\n\uf0be rigid and semi-rigid thermosetting moulding materials, including filled and reinforced compounds; rigid and semi-rigid thermosetting sheets, including laminates;
\n\uf0be fiber-reinforced thermosets and thermoplastic composites incorporating unidirectional or non-unidirectional reinforcements, such as mat, woven fabrics, woven rovings, chopped strands, combination and hybrid reinforcement, rovings and milled fibers; sheet made from pre-impregnated materials (prepregs),
\n\uf0be thermotropic liquid crystal polymers.
\nThe methods are not normally applicable to rigid foam materials, for which ISO 1926 is used, or for sandwich structures containing cellular materials.<\/p>\n
2 NORMATIVE REFERENCES<\/p>\n
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
\nGB\/T 12160-2002 Calibration of extensometers used in uniaxial testing (ISO 9513:1999, IDT)
\nGB\/T 16825.1-2008 Verification of static uniaxial testing machines – Part 1: Tension\/compression testing machines – Verification and calibration of the force-measuring system (ISO 7500-1:2004, IDT)
\nISO 291 Plastics-Standard atmospheres for conditioning and testing
\nISO 2602 Statistical interpretation of test results-Estimation of the mean-Confidence interval
\nISO 16012 Plastics – Determination of linear dimensions of test specimens
\nISO 20753 Plastics – Test specimens
\nISO 23529 Rubber – General procedures for preparing and conditioning test pieces for physical test methods<\/p>\n
3 Terms and definitions<\/p>\n
For the purposes of this document, the following terms and definitions apply.<\/p>\n
3.1
\ngauge length (L0)
\ninitial distance between the gauge marks on the central part of the test specimen
\nNote 1: It is expressed in millimeters (mm).
\nNote 2: The values of the gauge length that are indicated for the specimen types in the different parts of GB\/T 1040 represent the relevant maximum gauge length.
\n3.2
\nthickness (h)
\nsmaller initial dimension of the rectangular cross-section in the central part of a test specimen
\nNote: It is expressed in millimeters (mm).
\n3.3
\nWidth (b)
\nlarger initial dimension of the rectangular cross-section in the central part of a test specimen
\nNote: It is expressed in millimeters (mm).<\/p>\n
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