ISO 10113:2020 pdf free download.Metallic materials — Sheet and strip — Determination of plastic strain ratio.
ISO 10113:2020 specifies a method for determining the plastic strain ratio of flat products (sheet and strip) made of metallic materials.
2 Normative references
ISO 6892-1: 2019, Metallic materials-Tensile testing- Part 1 Method of test at room temperature;
ISO 9513, Metallic materials- Calibration of extensometer systems used in uniaxial testing;
ISO 80000-1, Quantities and units- Part 1: General;
5 Principle
The plastic strain ratio ris often used for the characterisation and qualification of materials, and for the numerical simulation of forming processes.
To determine the plastic strain ratio, a test piece is subjected to a tensile test to a specified plasti (engineering ) strain and the plastic strain ratio, r, is calculated from measurements of the changes in width and thickness after unloading or after subtraction of the elastic strains. However, it is easier and more precise to measure changes in length than in thickness. Therefore, the plastic strain ratio r is typically derived from changes in length and width using the law of constancy of volume, see Formula(5).
7 Test piece
The test piece shall be taken in accordance with the requirements of the relevant product standard or, if not specified therein, as agreed between the parties involved The type of the test piece and its preparation, including machining tolerances, the tolerances on sha and the marking of the original gauge length, shall be as defined in ISO 6892-1: 2019, Annex B. In do not differ by more than 0, 1% of the mean of all the width measurements.
ISO 10113:2020 download
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