BS ISO 16842:2021
$142.49
Metallic materials. Sheet and strip. Biaxial tensile testing method using a cruciform test piece
Published By | Publication Date | Number of Pages |
BSI | 2021 | 32 |
This document specifies the method for measuring the stress-strain curves of sheet metals subject to biaxial tension using a cruciform test piece fabricated from a sheet metal sample. The applicable thickness of the sheet is 0,1 mm or more and 0,08 times or less of the arm width of the cruciform test piece (see Figure 1). The test temperature ranges from 10 °C to 35 °C. The amount of plastic strain applicable to the gauge area of the cruciform test piece depends on the force ratio, slit width of the arms, work hardening exponent (n-value) (see Annex B) and anisotropy of a test material.
PDF Catalog
PDF Pages | PDF Title |
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2 | National foreword |
6 | Foreword |
7 | Introduction |
9 | 1 Scope 2 Normative references 3 Terms and definitions |
10 | 4 Principle 5 Test piece 5.1 Shape and dimensions |
11 | 5.2 Preparation of the test pieces |
12 | 6 Testing method 6.1 Testing machine |
13 | 6.2 Measurement method of force and strain 6.2.1 General 6.2.2 Measurement method of force 6.2.3 Measurement method of strain 6.2.4 Strain measurement positions |
14 | 6.3 Installation of the test piece to a biaxial tensile testing machine |
15 | 6.4 Testing methods 7 Determination of biaxial stress-strain curves 7.1 General 7.2 Determination of the original cross-sectional area of the test piece 7.3 Determination of true stress |
16 | 7.4 Determination of true strain |
17 | 7.5 Determination of true plastic strain |
18 | 8 Test report 8.1 Information in the report 8.2 Additional note |
19 | Annex A (informative) Method for measuring a yield surface |
23 | Annex B (informative) Factors affecting the maximum equivalent plastic strain applicable to the gauge area of the test piece |
25 | Annex C (informative) Biaxial tensile testing machine |
29 | Bibliography |