Extensibility

from Wikipedia, the free encyclopedia

In strength theory, elasticity is understood as the property of a material to change its shape under the action of force . The extensibility indicates how far a material can be extended without breaking or tearing .

Measurement

During the tensile test as part of the material test, the material data are recorded in a force-extension diagram . The diagram is then converted into a stress-strain diagram . For this purpose, the force is related to the cross-sectional area , which gives the tension , and the extension to the initial length of the tensile specimen , which gives the elongation . The ductility is the change in length until it breaks , while the tensile strength describes the tension that has to be applied until it breaks.

The part of the deformation up to which the elongation takes place evenly and without constriction is called uniform elongation , the total deformation up to breakage is called elongation at break .

literature

  • Catrin Kammer, Ulrich Kammer: Materials science for practitioners. 8th revised edition, Verlag EUROPA-LEHRMITTEL, Haan-Gruiten 2017, ISBN 978-3-8085-1410-8 .
  • Hans-Jürgen Bargel, Hermann Hilbrans, Günter Schulze (eds.), Karl-Heinz Hübner, Oswald Krüger: Material science. 9th edited edition, Springer Verlag, Berlin / Heidelberg 2005, ISBN 978-3-540-26107-0 .

Web links