|
US$249.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
LY/T 3297-2022: (Technical specification for dynamic testing of wood shear modulus)
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| LY/T 3297-2022 | English | 249 |
Add to Cart
|
3 days [Need to translate]
|
(Technical specification for dynamic testing of wood shear modulus)
| Valid |
LY/T 3297-2022
|
Standard similar to LY/T 3297-2022 LY/T 1094 LY/T 1302 LY/T 1330 Basic data | Standard ID | LY/T 3297-2022 (LY/T3297-2022) | | Description (Translated English) | (Technical specification for dynamic testing of wood shear modulus) | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of International Standard | 79.010 | | Word Count Estimation | 10,159 | | Date of Issue | 2022-09-07 | | Date of Implementation | 2023-01-01 | | Issuing agency(ies) | State Forestry and Grassland Administration | LY/T 3297-2022: (Technical specification for dynamic testing of wood shear modulus)---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 79.010
CCSB60
Forestry Industry Standard of the People's Republic of China
Dynamic Testing Technology of Wood Shear Modulus
Released on 2022-09-07
2023-01-01 Implementation
Released by the State Forestry and Grassland Administration
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.
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 and managed by the Structural Timber Subcommittee (SAC/TC41/SC4) of the National Timber Standardization Technical Committee.
This document is drafted by. Nanjing Forestry University, Guannan Yindelong Wood Industry Co., Ltd., Wood Industry Research Institute of Chinese Academy of Forestry Sciences,
People from Ningbo China-Canada Low-Carbon New Technology Research Institute Co., Ltd., Jiangsu Senzhihu Construction Engineering Co., Ltd., Taizhou University, and National Forestry and Grassland Bureau
Board and its products quality inspection and testing center (Nanjing), Northeast Forestry University, Jiangsu Vocational and Technical College of Agriculture and Forestry.
The main drafters of this document. Wang Zheng, Zhao Maocheng, Gong Yingchun, Li Yingchao, Wang Jianhe, Zhao Tianchang, Liang Xingyu, Yang Xiaojun, Xu Bin, Li Haitao,
Hu Yingcheng, Rao Xin, Liu Bin.
Dynamic Testing Technology of Wood Shear Modulus
1 Scope
This document specifies the instruments and tools, samples, test procedures, and result calculations for determining the shear modulus of wood by the free plate torsional mode method.
and test reports.
This document applies to the dynamic determination of the shear modulus of small unblemished specimens of wood.
2 Normative references
The content in the following documents constitutes the essential provisions of this document through normative references in the text. dated citations
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 1927.2-2021 Test methods for physical and mechanical properties of wood with small unblemished specimens - Part 2.Sampling methods and general requirements
GB/T 1927.5-2021 Test methods for physical and mechanical properties of wood with small unblemished specimens - Part 5.Determination of density
GB/T 1927.10-2021 Test methods for physical and mechanical properties of wood with small flawless specimens - Part 10.Determination of flexural modulus of elasticity
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Free board free-plate
Four-sided free-standing board suspended by two soft elastic cords.
3.2
wood shear modulus woodshearmodulus
The ratio of shear stress to shear strain of wood under the action of shear stress within the limit of elastic deformation ratio. Three main directions of wood
The shear moduli GRT, GLR and GLT corresponding to the transverse section RT, radial section LR and chord section LT.
3.3
vibration testvibrationtesting
The physical quantity of vibration displacement, velocity or acceleration is measured by the sensor and converted into an electrical signal, and then processed by signal filtering, amplification and other links.
The process of properly adjusting the signal and displaying and recording the test results.
3.4
free plate transverse vibration
The vibration of a particle on a free plate is perpendicular to the middle plane of the free plate.
3.5
The frequency corresponding to the first torsional vibration of the free plate.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of LY/T 3297-2022_English be delivered?Answer: Upon your order, we will start to translate LY/T 3297-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of LY/T 3297-2022_English with my colleagues?Answer: Yes. The purchased PDF of LY/T 3297-2022_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+ 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 [email protected]. 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.
|