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Journal of Plastics Technology 2018/03

Alternative method for determination of the brittle-ductile transition at low testing speeds

Alternative method for determination of the brittle-ductile transition at low testing speeds

Material properties tested under standard testing conditions do not always reflect the load part’s reality. The determination of superimposed external influences on the material properties is usually only possible by using different test methods. For this reason, existing test procedures and evaluation methods are constantly being improved. With the help of the fracture mechanics method of the essential work of fracture and the ductility level based on load-displacement diagrams, a new and promising application for material qualification can be presented. The averaged ductility level can be used to detect the beginning of the upper shelf of the brittle-ductile transition from notched impact tests. This was successfully demonstrated using the example of differently conditioned PA6 and a PA6 blend.

Dr.-Ing. Johannes Heyn, Prof. Dr.-Ing. Christian Bonten
Institut für Kunststofftechnik (IKT), Universität Stuttgart

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The Journal of Plastics Technology is a peer reviewed internet periodical published under the auspices of the Scientific Alliance of Polymer Technology (WAK)


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International Polymer Processing

International Polymer Processing, the journal of the Polymer Processing Society, is a discussion forum for the world-wide community of engineers and scientists in the field of polymer processing.

The journal covers research and industrial application in the very specific areas of designing polymer products, processes, processing machinery and equipment.


International Polymer Processing


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The Journal of Plastics Technology is indexed in SCOPUS, the largest abstract and citation database of peer-reviewed literature.