EN ISO 16808:2022 PDF
Metallic materials - Sheet and strip - Determination of biaxial stress-strain curve by means of bulge test with optical measuring systems (ISO 16808:2022)
Metallic materials - Sheet and strip - Determination of biaxial stress-strain curve by means of bulge test with optical measuring systems (ISO 16808:2022)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 31
- Дата публикации:
- 25 мая 2022 г.
- Издание:
- CEN EN 16808 edition 2 version 1
- ICS:
- 77.040.10
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.
Abstract
Overview
EN ISO 16808:2022 - Metallic materials - Sheet and strip - Determination of biaxial stress-strain curve by means of bulge test with optical measuring systems specifies a standardized bulge (hydraulic) test method to determine the biaxial true stress–true strain curve of metallic sheets and strips with thickness below 3 mm. The method records deformation while a circular blank is clamped and pressurized with fluid until fracture. Compared with tensile testing, the bulge test can reach significantly higher strain values, providing data for biaxial forming conditions.
Key topics and technical requirements
- Scope: Applies to pure stretch forming of sheets
Технические детали
- Технический комитет
- ECISS/TC 101 - Test methods for steel (other than chemical analysis)
- SKU
- EN ISO 16808:2022
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