Valid

GB/T 31310-2014Metallic materials - Determination of residual stress - Hole drilling strain gauge method (English PDF)

金属材料残余应力测定钻孔应变法

Preview PDF

This is a limited preview

Buy now to download the full PDF (40 pages)

Need quotation for your management?

Get a formal quotation for GB/T 31310-2014 in 30 minutes.

Issued by

General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the PRC

Level / Type

National · Recommended

Issue date

December 5, 2014

Implementation date

September 1, 2015

Scope

GB/T 31310-2014 is the English-translated version of 金属材料残余应力测定钻孔应变法.

GB/T 31310-2014 is the Chinese standard "Metallic materials - Determination of residual stress - Hole drilling strain gauge method".

Its scope clause reads: This standard specifies the test outlined determination of the elastic material near the surface of a metallic material isotropic linear residual stress using the drilling method, measurement devices Equipment, measurement procedures, calibration constant stress calculation, measurement error correction and the like.

Drilling method for measuring the inner surface of the metal material stress gradient less stress state, the residual stress in this state may be in the depth direction No change, approximately constant (uniform stress), there may be significant changes (non-uniform stress) in the depth direction.

As a result of drilling only mode Plane residual stress can be measured near the surface of the material, and therefore the size of the drilling method can only be measured by drilling holes in the inner boundary of the local residual stresses. Its clauses include terms and definitions.

Found what you need?

Document preview — GB/T 31310-2014

National Standard of the People's Republic of China

ICS: 77.040.10
Classification: H 22

Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the PRC

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and
5 3 Test Overview
6 7 Part Ready
7 rosette and measuring instruments
8 Test procedure
9 Calculation of Residual Stress
10 26 Test Report
11 Precision and Bias
Appendix A (normative) Calibration test low-speed drill and Formulas
Annex B (informative) Uncertainty drilling method of analysis
References

1 Scope

This standard specifies the test outlined determination of the elastic material near the surface of a metallic material isotropic linear residual stress using the drilling method, measurement devices

Equipment, measurement procedures, calibration constant stress calculation, measurement error correction and the like.

Drilling method for measuring the inner surface of the metal material stress gradient less stress state, the residual stress in this state may be in the depth direction

No change, approximately constant (uniform stress), there may be significant changes (non-uniform stress) in the depth direction. As a result of drilling only mode

Plane residual stress can be measured near the surface of the material, and therefore the size of the drilling method can only be measured by drilling holes in the inner boundary of the local residual stresses.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

JJG623 resistance strain gauges

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Stress calibration constants

Information residual stress and strain release scale factor. In borehole strain method, the resistance strain gauge geometry, pasting position, the hole

The shape and size.

3.2 Strain Release

The structural member having a stress field drilling, the amount of change before and after its drilling strain.

3.3 Thin workpieces

The thickness of the circular diameter smaller than the bore diameter of the workpiece or strain to spend.

3.4 Thick workpiece

Many artifacts than the thickness of the large diameter drilling.

3.5 Medium thickness of the workpiece

Thick and thin workpiece workpiece workpiece in between.

3.6 High-speed drilling

Speed into the hole in the tens of thousands of revolutions per minute or more, cutting a small amount of processing methods.

3.7 Low-speed drill

Pore-forming speed of thousands of revolutions per minute, especially a hand drill processing methods.

GB/T 34487 | GB/T 31930 | GB/T 29459.1 | GB/T 22315 | GB/T 12443 | GB/T 10128 | […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 40 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

Similar standards

GB/T 31218-2014|GB/T 31930-2015|GB/T 34487-2017|GB/T 22315-2008|GB/T 13992-2010

How to Download GB/T 31310-2014

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.