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GB/T 41933-2022 English PDF

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US$429.00 · In stock
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GB/T 41933-2022: Plastics - Determination of tension-tension fatigue crack propagation - Linear elastic fracture mechanics(LEFM) approach
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41933-2022	429	Add to Cart	4 days	Plastics - Determination of tension-tension fatigue crack propagation - Linear elastic fracture mechanics(LEFM) approach	Valid

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Basic data

Standard ID: GB/T 41933-2022 (GB/T41933-2022)
Description (Translated English): Plastics - Determination of tension-tension fatigue crack propagation - Linear elastic fracture mechanics(LEFM) approach
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G31
Classification of International Standard: 83.080.01
Word Count Estimation: 22,256
Date of Issue: 2022-12-30
Date of Implementation: 2023-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41933-2022: Plastics - Determination of tension-tension fatigue crack propagation - Linear elastic fracture mechanics(LEFM) approach

---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.
ICS 83.080.01 CCSG31 National Standards of People's Republic of China Determination of tension-tension fatigue crack growth in plastics Linear Elastic Fracture Mechanics (LEFM) method (ISO 15850.2014, MOD) Posted on 2022-12-30 2023-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Principle 4 5 Significance and use 4 6 Sample 5 6.1 Shape and size 5 6.2 Sample preparation 7 6.3 Gap preparation 7 6.4 Side slot 8 6.5 State regulation and test environment 8 7 Instruments and equipment 8 7.1 Testing machine 8 7.2 Fixture 9 7.3 Crack length measurement 9 8 Test Step 12 8.1 Sample size measurement 12 8.2 Clamping the specimen 12 8.3 Applying loads 12 8.4 Out-of-plane crack growth12 8.5 Discontinuous crack growth 13 8.6 Number of tests 13 9 Calculation and presentation of results 13 9.1 Relationship between crack length and number of cycles Figure 13 9.2 Correction of crack curvature 13 9.3 Crack growth rate da/dN 13 9.4 Stress intensity factor range ΔK 14 9.5 Energy release rate range ΔG 14 10 Test report 14 10.1 Fatigue crack growth test 14 10.2 Fatigue crack growth to failure test 15 Appendix A (informative) Use of cyclic fatigue crack growth test to assess anomalies in long-term static fatigue behavior 16 Reference 19

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. This document is modified to adopt ISO 15850.2014 "Determination of plastic tension-tension fatigue crack growth linear elastic fracture mechanics (LEFM) Law". Compared with ISO 15850.2014, this document has made the following structural adjustments. --- Adjust the content of the scope described in 6.1.3 of ISO 15850.2014 to Chapter 1 to make the structure more reasonable; --- Adjust the content of 7.4 of ISO 15850.2014 to 6.5 to make the structure more reasonable. The technical differences between this document and ISO 15850.2014 and their reasons are as follows. --- Replaced ISO 527 (all parts) (see 6.1.3, 7.3.4) with normatively referenced GB/T 1040 (all parts) to accommodate my country's technical conditions, increase operability; --- Replaced ISO 2818 (see 6.2) with the normatively quoted GB/T 39812 to adapt to my country's technical conditions and increase operability active; --- Replaced ISO 291 (see 6.5) with the normatively quoted GB/T 2918 to adapt to my country's technical conditions and increase operability. The following editorial changes have been made to this document. --- The explanatory content of the text part is changed to a note (see Chapter 1, 6.1.2, 6.1.3, 7.3); --- Deleted the term "stress intensity calibration"; --- Replaced ISO 13586 with informative references to GB/T 41932 (see 3.8, 3.12 and Chapter 5); --- Delete the terms "maximum energy release rate" and "minimum energy release rate", and use them as the definition of the term "energy release rate range" Note (see 3.13); --- Replaced ISO 16770 with the informative referenced GB/T 32682 (see 6.1.1); --- Deleted 10.1 of ISO 15850.2014. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC15). This document is drafted by. Sinopec (Beijing) Chemical Research Institute Co., Ltd., China Blue Chenguang Chemical Co., Ltd., Guangzhou Yichang Technology Co., Ltd. Co., Ltd., Chengde Precision Testing Machine Co., Ltd., Xiamen Yinduli Industrial Co., Ltd., Southwest Jiaotong University, Shandong Non-metallic Materials Research Institute, CGN Juner (Zhejiang) New Material Co., Ltd., Qingdao Product Quality Inspection Research Institute, Zhejiang Huafeng New Material Co., Ltd., Dongguan Smart Guoxin Material Technology Co., Ltd., Beijing Institute of Science and Technology Analysis and Testing Institute (Beijing Physical and Chemical Analysis and Testing Center), Wuhu Chuangke New Material Technology Co., Ltd., Jilin Provincial Product Quality Supervision and Inspection Institute, Shandong Xianglong New Material Co., Ltd., Guangdong Youju Advanced New Material Materials Co., Ltd., Feixian Haiyue Plastic Products Packaging Co., Ltd., Zhejiang Yuansheng Plastic Industry Co., Ltd., Shenzhen Jundingda New Materials Co., Ltd., Shandong Jingcheng Industrial Automation Equipment Co., Ltd. The main drafters of this document. Zhe Dongmei, Hu Xiaoyi, Zhang Yanjun, Yang Jiangyuan, Wang Xinhua, Xiangmei, Jiang Han, Zhang Xia, Chen Yongbo, Gong Xiangxiu, Cai Wandong, Li Zuyong, Guo Xia, Wang Miao, Li Shangyu, Guo Yingying, Ma Xuebin, Wang Xianwen, Zhang Jingcai, Huang Weifeng, Yang Zhanyi, Hua Dingpeng, Liu Yunpeng. Determination of tension-tension fatigue crack growth in plastics Linear Elastic Fracture Mechanics (LEFM) method

1 Scope

This document describes the measurement of tensile loads on notched specimens by periodically varying between a constant positive minimum value and a constant positive maximum value. Determine the method of crack growth. This document applies to the crack length as a function of the number of loading cycles, and the crack length growth rate as a function of the stress intensity at the crack tip. Determination of the functional relationship between the factor and the energy release rate. Note 1 to entry. Detect and report possible discontinuities in crack growth. This document is also applicable to the determination of the crack growth resistance of materials. Note 2.The results are expressed in terms of the number of cycles leading to crack growth failure or the relationship between the total time and the stress intensity factor, see Appendix A. This document applies to the determination of tension-tension fatigue crack growth using the linear elastic fracture mechanics (LEFM) method for the following materials. --- Rigid and semi-rigid thermoplastic moldings, extrusion materials (including filled and short fiber reinforced composites) and sheets; ---Rigid and semi-rigid thermosetting materials (including filled and short fiber reinforced compounds) and plates. This document applies only to materials with very limited viscoelastic properties at the frequency of loading used and the duration of the test expected.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 1040 (all parts) Determination of tensile properties of plastics Note. GB/T 1040.1 Determination of tensile properties of plastics Part 1.General principles (GB/T 1040.1-2018, ISO 527-1.2012, IDT); GB/T 1040.2 Determination of tensile properties of plastics - Part 2.Test conditions for molded and extruded plastics (GB/T 1040.2-2022, ISO 527-2.2012, IDT); GB/T 1040.3 Determination of tensile properties of plastics - Part 3.Test conditions for films and sheets (GB/T 1040.3-2006, ISO 527-3. 1995, IDT); GB/T 1040.4 Determination of tensile properties of plastics - Part 4.Test conditions for isotropic and orthotropic fiber-reinforced composite materials (GB/T 1040.4-2006, ISO 527-4.1997, IDT); GB/T 1040.5 Determination of tensile properties of plastics - Part 5.Test conditions for unidirectional fiber-reinforced composite materials (GB/T 1040.5-2008, ISO 527-5.1997, IDT). GB/T 2918 Standard environment for conditioning and testing of plastic specimens (GB/T 2918-2018, ISO 291.2008, MOD) GB/T 39812 Machining preparation of plastic samples (GB/T 39812-2021, ISO 2818.2018, IDT)

3 Terms and Definitions

The following terms and definitions apply to this document. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 41933-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 41933-2022_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 41933-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 41933-2022_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+ countries

Question 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.