What is ISO 17340 about?
ISO 17340 specifies methods for high-speed compression testing, at room temperature, of porous and cellular metals having a porosity of 50 % or more.
The speed range applicable to this test method is 0,1 m/s to 100 m/s (or 1 s−1 to 103 s−1 in terms of the initial strain rate when the specimen height is 100 mm).
Who is ISO 17340 for?
ISO 17340 on high-speed compression test for porous and cellular metals is relevant to:
- Manufacturers and suppliers of force measurement instruments
- Manufacturers and suppliers of materials testing machines
- Sheet metal engineers
- Metal forming technologies
Why should you use ISO 17340?
Porous and cellular metals have attractive properties due to their unique cell morphology. When they are used as impact energy-absorbing components in automotive structures, knowledge of their high-speed compressive properties is necessary for industrial design. Standardization of a testing method for the high-speed compressive behaviour of porous and cellular metals is required.
ISO 17340 describes the test that consists of applying an impact force at test speeds between 0,1 m/s and 100 m/s to porous and cellular metals and measuring the compressive force and displacement for evaluation of their highspeed compressive deformation characteristics, such as plateau stress and energy absorption. Test methods that apply high-speed compressive forces to porous and cellular metals are the drop weight impact test and the servo-type high-speed compression test. The drop weight impact test applies the compressive force by dropping a weight from a specified height. The test speed is controlled by the drop height. The servo-type high-speed compression test applies the compressive force using a hydraulic or electric high-speed servo mechanism. The test speed is changed by the servo control.
Overall, ISO 17340 is helpful as it assists the user with the high-speed compression test for porous and cellular metals which can be of good help in your business.
What’s changed since the last update?
BS ISO 17340:2020 supersedes BS ISO 17340:2014, which is withdrawn. BS ISO 17340:2020 replaces the first edition (ISO 17340:2014), of which it constitutes a minor revision. The changes compared to the previous edition are as follows:
- The title of ISO 7500-1 has been updated in Clause 2
- A list of symbols and units has been added as Clause 4
- Information about the use of adhesives in 2 b) has been revised
- Minor editorial changes have been made to align with ISO/IEC Directives Part 2:2018
