GB/T 34487-2017 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 34487-2017 | English | 150 |
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Shear Testing Method of Aluminum Alloy Products for Structural Members
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GB/T 34487-2017: Shear Testing Method of Aluminum Alloy Products for Structural Members---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT34487-2017
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.040.01
H 22
Shear Testing Method of Aluminum Alloy
Products for Structural Members
ISSUED ON: OCTOBER 14, 2017
IMPLEMENTED ON: MAY 1, 2018
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 An Overview of Method ... 4
4 Testing Machine ... 4
5 Fixture ... 5
6 Test Sample ... 5
7 Test Procedure ... 7
8 Result Calculation ... 7
9 Test Report ... 7
Appendix A (Informative) Fixture ... 9
Appendix B (Informative) Double Shear Sample ... 17
Appendix C (Informative) Single Shear Sample ... 19
Shear Testing Method of Aluminum Alloy
Products for Structural Members
1 Scope
This Standard stipulates an overview of method, testing machine, fixture, test sample,
test procedure, result calculation and test report for shear testing method of aluminum
alloy products for structural members.
This Standard is applicable to the determination of shear performance of aluminum
alloy products for structural members.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specific date, only versions with a specific date are
applicable to this document. In terms of references without a specific date, the latest
versions (including all the modification lists) are applicable to this document.
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgement
of Limiting Values
GB/T 16491 Electronic Universal Testing Machines
GB/T 16825.1 Verification of Static Uniaxial Testing Machines - Part 1:
Tension/compression Testing Machines - Verification and Calibration of the Force-
measuring System
3 An Overview of Method
Through the application of shear load onto test sample, when the maximum load
emerges, or, when the test sample ruptures, stop. Use the maximum load that per unit
area bears to evaluate the shear performance of aluminum alloy products for structural
members.
4 Testing Machine
Testing machine shall comply with the stipulations in GB/T 16491 or GB/T 16825.1.
Testing machine shall be Grade-1 or a more superior grade.
Where,
A2---sample shear area, expressed in (mm2).
7 Test Procedure
7.1 Use organic solvents (such as alcohol and acetone) to eliminate oil stain on the
fixture and the sample.
7.2 Install the fixture, which is already cleaned, on the testing machine (Chapter 4).
Then, install the sample, which is already cleaned, on the fixture.
7.3 Initiate the testing machine; reset the load.
7.4 At a displacement speed of not more than 19 mm/min, conduct shear test of the
sample. When the maximum load emerges, or, when the sample ruptures, stop. Then,
record the maximum load. During the process of the shear test, the stress is not
allowed to be more than 690 N/mm2 per minute.
8 Result Calculation
In accordance with Formula (3), calculate the shear strength. The numerical value
rounding-off rule shall comply with GB/T 8170. The result shall be rounded off to single
digit.
Where,
b---shear strength, expressed in (MPa);
Fmax---maximum shear load, expressed in (N);
A---sample shear area (double shear area: A1; single shear area: A2), expressed in
(mm2).
9 Test Report
Test report shall include the following content:
a) Serial No. of this Standard;
b) Product nameplate, state and dimensions;
Unit: millimeter
Keys:
1---support ring installation hole, aperture d5 = d3.
Figure A.5 -- Sketch Map of Base
A.1.5.2 Base should select alloy steel. Through thermal treatment, its hardness is 40
HRC ~ 45 HRC.
A.1.5.3 The rigidity of base shall be not lower than e10 N/m.
A.1.5.4 Roughness Ra of the contact surface between the base and the support ring
shall be not more than 0.8 μm.
A.2 Single Shear Fixture
A.2.1 Composition of single shear fixture
Single shear fixture is constituted of junction plate and fixing pin, as it is shown in
Figure A.6.
Figure B.2 -- Sketch Map of Circular Cross-sectional Product Sampling
Direction
B.2 Sample Code and Sample Preparation
B.2.1 Sample code, sample dimension, diameter deviation and surface roughness
shall comply with the stipulations in Table B.2.
Table B.2 -- Sample Code, Sample Dimension, Diameter Deviation and Surface
Roughness
B.2.2 On an aluminum alloy product, cut a round billet with the diameter of 1.5 D, or, a
1.5 D 1.5 D square-stick billet. The length of the billet shall be determined in
accordance with processing equipment. Process the sample on the billet. Billet
processing mode shall not influence the sample’s material performance.
Radial Direction
(R) Sample
Cross Direction
(C) Sample
Axial Direction
(L) Sample
Sample Code
Sample Dimension
Sample Nominal
Diameter D Sample Length L
Diameter Deviation Surface Roughness Ra
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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