Oluschinski: Created page with "{{Language_sel|LANG=ger|ARTIKEL=Trapezprüfkörper}} {{PSM_Infobox}} Trapezoidal specimen FORCETOC ==Trapezoidal specimen== For the determination of the tear propagation resistance in the tear propagation test, trapezoidal test specimens according to DIN 53363 as well as specimens in the form as strip-, angle- and arc-shaped test specimens to according to ISO 34-1 are used for films. Within the..."

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Created page with "{{Language_sel|LANG=ger|ARTIKEL=Trapezprüfkörper}} {{PSM_Infobox}} <span style="font-size:1.2em;font-weight:bold;">Trapezoidal specimen</span> __FORCETOC__ ==Trapezoidal specimen== For the determination of the tear propagation resistance in the tear propagation test, trapezoidal test specimens according to DIN 53363 as well as specimens in the form as strip-, angle- and arc-shaped test specimens to according to ISO 34-1 are used for films. Within the..."

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{{Language_sel|LANG=ger|ARTIKEL=Trapezprüfkörper}}
{{PSM_Infobox}}
<span style="font-size:1.2em;font-weight:bold;">Trapezoidal specimen</span>
__FORCETOC__

==Trapezoidal specimen==

For the determination of the tear propagation resistance in the [[Tear Test | tear propagation test]], trapezoidal test specimens according to DIN 53363 as well as specimens in the form as strip-, angle- and arc-shaped test specimens to according to ISO 34-1 are used for films.
Within the scope of the “Lexicon Polymer Testing”, the term "[[Specimen | specimen]]" with geometric dimensions similar to those of a component is used uniformly in connection with mechanical and fracture-mechanical materials testing, whereas “sample”, “test piece” or “probe” with the smallest dimensions are predominantly analysed in polymer analytics.
The trapezoidal test specimen is provided with a deep cut, which causes a high [[Notch | notch]] effect, or high stress concentration (see [[Fracture Mechanics | fracture mechanics]]) and initiates the tear propagation process under tensile load.

[[file:Trapezoidal_Specimen1.jpg]]
{|
|- valign="top"
|width="50px"|'''Fig.''':
|width="600px" |Trapezoidal specimen according to DIN 53363
|}

==See also==

* [[Trouser Specimen | Trouser specimen]]
* [[Specimen]]
* [[Fracture Mechanics | Fracture mechanics]]
* [[Tear Test | Tear test]]

'''References'''

*[[Grellmann,_Wolfgang|Grellmann, W.]], [[Seidler,_Sabine|Seidler, S.]] (Eds.): Polymer Testing. Carl Hanser Munich, 3rd. Edition (2022 ) p. 124 (ISBN 978-1-56990-806-8; e-book 978-1-56990-807-5; see [[AMK-Büchersammlung|AMK-Library]] under A 22)
* ISO 34-1 (2022-06): Rubber, Vulcanized or Thermoplastic – Determination of Tear Strength – Part 1: Trouser, Angle and Crescent Test pieces
* DIN 53363 (2003-10): Testing of Plastic Films – Tear Test using Trapezoidal Test Specimen with Incision (withdrawn; replaced by DIN EN 17679: 2022-08)
* DIN EN 17679 (2022-08): Plastics – Plastic Films – Determination of Tear Resistance using a Trapezoidal Test Specimen with Incision

[[Category:Elastomers]]
[[Category:Film Testing]]
[[Category:Specimen]]

Trapezoidal Specimen - Revision history