GB/T 34886-2017 English PDFUS$339.00 ยท In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 34886-2017: Non-destructive testing -- Test method for laser shearography of composite materials Status: Valid
Basic dataStandard ID: GB/T 34886-2017 (GB/T34886-2017)Description (Translated English): Non-destructive testing -- Test method for laser shearography of composite materials Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J04 Classification of International Standard: 19.100 Word Count Estimation: 17,119 Date of Issue: 2017-11-01 Date of Implementation: 2018-05-01 Regulation (derived from): National Standard Announcement 2017 No. 29 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 GB/T 34886-2017: Non-destructive testing -- Test method for laser shearography of composite 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. Non-destructive testing-Test method for laser shearography of composite materials ICS 19.100 J04 National Standards of People's Republic of China Nondestructive testing of composite laser dislocations Speckle detection method Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard by the National Standardization Technical Committee nondestructive testing (SAC/TC56) and focal point. This standard drafting unit. Beijing Institute of Aeronautical Materials, Shanghai University, Guangzhou, an injection Machinery Co., Ltd., aerospace materials and engineering Arts Institute, Beijing Satellite Factory, Shanghai Aerospace Precision Machinery Institute, Shanghai Institute of Satellite Equipment, Beijing Jiasheng Chi-seok Technology Co., Ltd. Division, China Aviation Institute of integrated technology. The main drafters of this standard. Guo Guangping, Yang Dangangang, Tang Jia, Zhang Dongsheng, Zeng Qilin, Cheng Chayuan, Bi Li, Tu Jun, Zhou Li, Shuai Sheng, Li Huijuan, Zhang in the North. Nondestructive testing of composite laser dislocations Speckle detection method1 ScopeThis standard specifies the method of laser dislocation speckle detection of composite materials. This standard applies to testing composite laminates, cellular sandwich adhesive components, foam sandwich adhesive components, detectable defect type package Including debonding, delamination, impact damage and so on. Other materials, adhesive defects testing, can refer to use.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB 7247.1 Safety of laser products - Part 1. Equipment classification, requirements GB/T 9445 non-destructive testing personnel qualification and certification GB/T 20737 non-destructive testing common terms and definitions3 Terms and definitionsGB/T 20737 defined and the following terms and definitions apply to this document. 3.1 Displacement out-of-planedisplacement The displacement component perpendicular to the surface of the object (normal direction). The parameters directly measured by laser misalignment speckle technique are essentially the out-of-plane of the object Displacement. 3.2 Displacement shearvector Shear amount The optical imaging device of the laser misalignment speckle detection system superimposes two misalignment images of an object, the distance between two images and the phase The direction, see Figure 1. 3.3 Specklegram of speckle The laser-irradiated speckled image on the surface of the object due to diffuse reflection is shown in Figure 2a). Randomly distributed spots along with objects Body surface deformation synchronous movement, a surface displacement information carrier. 3.4 Interference fringe pattern fringepattern Before and after deformation of two speckle figures subtracted to get the black and white striped image, shown in Figure 2b), the stripe contains the surface of the object Displacement information. 3.5 Phase map phasemapshearogram The corresponding point optical interference optical phase obtained through the operation of multiple speckle patterns obtained by the phase shift device in the laser dislocation speckle system ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 34886-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 34886-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. 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