+49 441 94986-0

Information about tests

Impact resistance by the free-falling dart method – Instrumented puncture test

Impact resistance test in a drop impact tester, test speed approx. 4.4 m/s, for simulating impact-like stresses similar to the test of the drop hammer method (Dart Drop). In comparison to the Dart Drop test, the determination of the characteristic value is done electronically by means of a piezo force sensor in the drop probe as well as a light gate for deformation measurement and not by iterative variation of the impact mass (staircase method). Therefore, in addition to the damage force, results are also obtained for the deformation to fracture or the damage work. An older method according to specifications of the Fraunhofer Institute for Process Engineering and Packaging also allows testing of folded edges on premature damage.

test method:Mechanical/ technological properties
Norms: DIN ISO 7765-2 (2009-02)
DIN 53373 (zurückgezogen) (1970-09)
FhG Merkblatt 6 Teil 2 Blatt 2 (zurückgezogen) (1981-02)
Needed sample size:Sample over total width of material minimum length: 0,5 m, minimum width/length = 80 mm (specimen = circle 80 mm diameter)

Standardprüfungen

Impact test with electronic data recording on flat materials (withoud, folded edges, etc.)
Impact resistance test in a drop impact tester, test speed approx. 4.4 m/s, for simulating impact-like stresses similar to the test of the drop hammer method (Dart Drop). In comparison to the Dart Drop test, the determination of the characteristic value is done electronically by means of a piezo force sensor in the drop probe as well as a light gate for deformation measurement and not by iterative variation of the impact mass (staircase method). Therefore, in addition to the damage force, results are also obtained for the deformation to fracture or the damage work. An older method according to specifications of the Fraunhofer Institute for Process Engineering and Packaging also allows testing of folded edges on premature damage.


Impact test with electronic data recording on folded edges
The test is performed on both fold edges (left and right). The puncture is performed at a specified distance x of the folded edge from the specimen center, i.e. next to the folded edge. The value x depends on the damage deformation measured on the flat material without folded edge.




back to overview Mechanical/ technological properties

Search examinations


Your contact person

Matthias Böhne +49 441 94986-11
matthias.boehne@innoform.de

Prüfungen in diesem Bereich