{"id":309001,"date":"2024-10-19T21:12:51","date_gmt":"2024-10-19T21:12:51","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-20975-22018\/"},"modified":"2024-10-25T18:53:53","modified_gmt":"2024-10-25T18:53:53","slug":"bs-iso-20975-22018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-20975-22018\/","title":{"rendered":"BS ISO 20975-2:2018"},"content":{"rendered":"
This document specifies a flexural test method for determining the through-thickness (out-of-plane) tensile properties of laminated carbon fibre-reinforced plastic (CFRP) composites, including strength, fracture strain, and modulus. This document is applicable to unidirectional CFRP (UD-CFRP) laminates. In addition, the calculation of effective volume is also described due to size effects of the through-thickness tensile strength.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 4 Principle <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 5 Conditioning 5.1 Conditioning of test specimen 5.2 Temperature and humidity in testing 6 Apparatus 6.3 Test fixture <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 7 Test specimens 7.1 Shape and dimensions 7.2 Preparation of specimens 7.2.1 General 7.2.2 Test plate <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 7.3 Specimen inspection 7.4 Number of specimens <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 8 Procedure 9 Calculations 9.1 Through-thickness tensile stress <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | 9.2 Through-thickness tensile strength 9.3 Weibull modulus by flexural test 9.4 Effective volume of flexural specimen 9.5 Through-thickness tensile strain <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | 9.6 Through-thickness tensile strain at failure 9.7 Through-thickness tensile modulus 9.8 Significant figures of stress and elastic modulus 9.9 Expression of results <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | 10 Precision 11 Test report <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | Annex A (informative) Precision data obtained from an interlaboratory test <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fibre-reinforced plastic compositess. Determination of laminate through-thickness properties – Determination of the elastic modulus, the strength and the Weibull size effects by flexural test of unidirectional laminate, for carbon-fibre based systems<\/b><\/p>\n |