{"id":402423,"date":"2024-10-20T05:01:07","date_gmt":"2024-10-20T05:01:07","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-168082022\/"},"modified":"2024-10-26T08:55:58","modified_gmt":"2024-10-26T08:55:58","slug":"bs-en-iso-168082022","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-168082022\/","title":{"rendered":"BS EN ISO 16808:2022"},"content":{"rendered":"
This document specifies a method for determination of the biaxial stress-strain curve of metallic sheets having a thickness below 3 mm in pure stretch forming without significant friction influence. In comparison with tensile test results, higher strain values can be achieved. NOTE In this document, the term “biaxial stress-strain curve” is used for simplification. In principle, in the test the “biaxial true stress-true strain curve” is determined.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
4<\/td>\n | European foreword Endorsement notice <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions 4 Symbols and abbreviated terms <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 5 Principle <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 6 Test equipment <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 7 Optical measurement system <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 8 Test piece 8.1 General 8.2 Application of grid 8.2.1 Type of grid 8.2.2 Grid application 9 Procedure <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 10 Evaluation methods for the determination of the curvature and strains at the pole <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 11 Calculation of biaxial stress-strain curves <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | 12 Test report <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | Annex A (informative) Test procedure for a quality check of the optical measurement system <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | Annex B (informative) Computation of the curvature on the basis of a response surface <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | Annex C (informative) Determination of the equi-biaxial stress point of the yield locus and the hardening curve <\/td>\n<\/tr>\n | ||||||
30<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Metallic materials. Sheet and strip. Determination of biaxial stress-strain curve by means of bulge test with optical measuring systems<\/b><\/p>\n |