Specimen

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Specimen

Definition

In the context of the Wiki-Lexicon "Polymer Testing & Diagnostics", the term test specimen is used uniformly in connection with mechanical and fracture mechanics testing. Test specimens often have component-like or component-matched shapes and are specified and standardized in their dimensions in standards. In plastics analysis, on the other hand, specimens with frequently very small dimensions are examined.

In the field of hardness and scratch testing, the indenter (penetration body) is sometimes also referred to as a specimen, which can lead to confusion.

Specimen for mechanical tests

Crescent specimen
Short beam specimen (see Interlaminar shear strength)
Standard small bar
Test specimen for fatigue tests
Specimen for laser sintering
Rolling ring test specimen (see Roll Ring Test)
Round specimen
Trapezoidal specimen
Trouser specimen
Multipurpose test specimen
Angle specimen

Specimen for fracture mechanics tests

3PB specimen (see SENB-Specimen)
4 ENF-specimen (Four end-notched flexure specimen)
Arc-shaped-specimen (see C-shaped specimen)
Arcan-specimen
C-shaped test specimen
CLS-specimen (Crack-lap shear specimen)
CT-specimen (Compact tension specimen)
CTS-specimen (Compact tension shear specimen)
DCB-specimen (Double cantilever beam specimen)
DENT-specimen (Double edge-notched tension specimen)
Three-point bend test specimen (see SENB-specimen)
ELS-specimen (End loaded split specimen)
ENF-specimen (End notched flexure specimen)
FRMM-specimen (Fixed-ratio mixed mode specimen)
Compact tension specimen (see CT-specimen)
MMB-specimen (Mixed-mode bend specimen)
ODCB or MC-DCB-specimen (Out-of-plane loaded double cantilever beam or mixed-mode controlled double cantilever beam specimen)
Pure Shear-specimen
RCT-specimen (Round-compact tension specimen)
RDE-specimen (Reduce-dynamic effects specimen)
SCB-specimen (Split-cantilever beam specimen)
SENB-specimen (Single-edge-notched bend specimen)
SENT-specimen (Single-edge-notched tension specimen)
TDCB-specimen (Tapered-double-cantilever beam specimen)
TODCB-specimen (see SCB-specimen)
UODCB-specimen (see SCB-specimen)