GB/T 15248-2008 English PDFUS$459.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 15248-2008: The test method for axial loading constant-amplitude low-cycle fatigue of metallic materials Status: Valid GB/T 15248: Historical versions
Basic dataStandard ID: GB/T 15248-2008 (GB/T15248-2008)Description (Translated English): The test method for axial loading constant-amplitude low-cycle fatigue of metallic materials Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H22 Classification of International Standard: 77.040.10 Word Count Estimation: 20,261 Date of Issue: 2008-04-09 Date of Implementation: 2008-10-01 Older Standard (superseded by this standard): GB/T 15248-1994 Quoted Standard: GB/T 10623; GB/T 12160; JJG 556 Regulation (derived from): National Standard Approval Announcement 2008 No.5 (Total No.118) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the equipment and other metal materials amplitude axial low cycle fatigue test, test procedures, , handling and reporting of test results and other test samples. This standard applies to metallic materials, such as funnel-shaped cross-section and low-cycle fatigue specimens exposed to TB test axial stress or strain amplitude. Member does not include a full-size, test structures. Inelastic strain applied to time-dependent and time-independent inelastic strain is smaller than or equivalent temperature and strain rate. Allows the temperature, tested under environmental factors, such as media, pressure, humidity. However, these factors result in the testing process is kept constant. GB/T 15248-2008: The test method for axial loading constant-amplitude low-cycle fatigue of metallic materials---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. The test method for axial loading constant-amplitude low-cycle fatigue of metallic materials ICS 77.040.10 H22 National Standards of People's Republic of China Replacing GB/T 15248-1994 Amplitude low - cycle fatigue testing of metallic materials for axial Posted 2008-04-09 2008-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard replaces GB/T 15248-1994 "amplitude low - cycle fatigue testing of metallic materials for axial." "Pieces of low cycle fatigue testing of metallic materials for axial" This standard and GB/T 15248-1994 compared to the main changes are as follows. --- Ranging from the application of the criteria applicable to the "non-time-dependent elastic strain too small and time-independent inelastic strain compared to Under negligible temperature and strain rate test "to apply to" non-elastic strain and time-independent non-time-related Elastic strain smaller than or comparable with the test temperature and strain rate "under; --- Delete the original Appendix C "with a fillet sample strain range correction" and the body of the bid from the sample and its related content within the zone of the arc; --- Removed using a differential transformer and upper and lower rod extensometer extensometer system consisting of a schematic diagram; --- In data processing cycle is recommended to calculate the elastic modulus, an increase of Symbols and modulus of elasticity and circulation-related; --- Of figures, tables, equipment, samples, test environment, and other records and failure determination of the technical information has been modified; --- Expressed in the original standard part and typographical errors may cause differences were modified. This standard Annex A, Annex B, Annex C and Annex D are informative appendices. The standard proposed by China Aviation Industry Corporation. The standard by the China Aviation Industry Corporation. This standard was drafted. Beijing Institute of Aeronautical Materials, Institute of Metal Research, Beijing Iron and Steel Research Institute. The main drafters of this standard. Zhong Bin, Zhang Guodong, He Yuhuai, Jin Lei, Li Cheng, Xie Jizhou, segment for Cheung, Jing Hou Yong. This standard replaces the standard for the previous editions. --- GB/T 15248-1994. Amplitude low - cycle fatigue testing of metallic materials for axial1 ScopeThis standard specifies the equipment, samples, test procedures, test results and test processing of metallic materials amplitude axial low cycle fatigue test Reports. This standard applies to metallic materials, and the funnel-shaped cross-section specimens subjected to axial stress amplitude or low-cycle fatigue test strain is not included Test full-size components, structural parts. Inelastic strain and time applies to the time-dependent inelastic strain unrelated to or smaller than Considerable temperature and strain rate. Allows testing at ambient factors such as temperature, pressure, humidity, media, etc., but these factors throughout the experiment Process should be kept constant. NOTE. When this guide can be analyzed as a standard material development, mechanical design, process and quality control, performance measurement and failure low cycle fatigue test.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 10623 mechanical properties of metal test terminology GB/T 12160 uniaxial extensometer calibration test JJG556 axial loading fatigue testing machine test procedures3 SymbolSymbols used in this standard, name, unit and are described in Table 1. Table 1 symbol, name, unit and description Symbol Name Unit Description Δεt total strain range mm/mm in one cycle, the algebraic difference between the maximum and minimum strain, namely. Δεt = εmax-εmin Half Δε/2 strain amplitude mm/mm strain range εmax maximum strain mm/mm in one cycle, the maximum strain algebraic value. Stretching is positive, negative compression The minimum value for generations εmin minimum strain mm/mm in one cycle, the strain Elastic strain range Δεe mm/mm equal stress divided by elastic modulus range, namely. Δεe = Δσ/E Δεp plastic strain range mm/mm taking the difference between the total strain range elastic strain range, namely. Δεp = Δεt-Δεe Δσ stress range MPa cycle in one cycle, the algebraic difference between the maximum stress and minimum stress, namely. Δσ = σmax-σmin Half Δσ/2 MPa stress amplitude stress range σmax maximum stress MPa in one cycle, the maximum value on behalf of the stress σmin minimum stress MPa in one cycle, the smallest algebraic value of stress Rσ stress ratio - Rσ = σmin/σmax Rε strain ratio - Rε = εmin/εmax Nf cycles to failure for several weeks to reach the number of cycles to failure Reverse Number Reverse 2Nf failure to reach the number of failure reverse frequency ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 15248-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 15248-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 15248-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 15248-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 15248-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15248-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
