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Show new changes starting from 19:47, 5 December 2025

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5 December 2025

			14:42		(Upload log) [Oluschinski (3×)]
					14:42 Oluschinski talk contribs uploaded File:Probennachgiebigkeit-3.jpg
					14:42 Oluschinski talk contribs uploaded File:Probennachgiebigkeit-2.jpg
					14:42 Oluschinski talk contribs uploaded File:Speciman Compliance-1.jpg

N 14:40

Specimen diffhist +2,358 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Prüfkörper}} {{PSM_Infobox}} Specimen ==Definition== In the context of the WIKI-dictionary "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 t...")

N 14:25

Slenderness Ratio diffhist +2,178 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Schlankheitsgrad}} {{PSM_Infobox}} Slenderness ratio __FORCETOC__ ==Fundamentals== The slenderness ratio is used to evaluate the geometric suitability of test specimens for determining material values in compression tests and for calculating the critical buckling stress. When subjected to compressive stress, the test specimen must...")

N 14:16

Seidler, Sabine diffhist +5,274 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Seidler, Sabine}} {{PSM_Infobox}} Seidler, Sabine __FORCETOC__ file:Seidler.jpg {| |- valign="top" |width="50px"|'''Photo''': |width="600px" |Prof. Dr. Dr. h.c. mult. Sabine Seidler (Copyright Raimund Appel) |} Prof. Dr. [https://de.wikipedia.org/wiki/Sabine_Seidler Sabine Seidler], born on 29 August 1961 in [https://sangerhausen.de/ Sangerhausen], is a German-Austrian material...")

3 December 2025

N 14:10

Polymer Testing diffhist +6,608 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Kunststoffprüfung}} {{PSM_Infobox}} Polymer testing __FORCETOC__ ==Plastics testing as a scientific discipline== In the literature, the field of knowledge was initially referred to relatively inconsistently as ‘Werkstoffprüfung der Hochpolymere (materials testing of high polymers)’, ‘Plastwerkstoffprüfung (plastic materials testing)’ or ‘Polymerwerk...")

N 13:50

Poisson's Ratio diffhist +5,365 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Poissonzahl}} {{PSM_Infobox}} Poisson's ratio or Traverse contraction __FORCETOC__ ==Definition of Poisson´s ratio== Assuming a slender round test specimen which is in the plane stress state, a measurable reduction in cross-section Δ''d'' occurs in addition to the elongation Δ''l'' of the test specimen during tensile loading as a result of volume constanc...")

N 13:49

Plastics diffhist +4,515 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Kunststoffe}} {{PSM_Infobox}} Plastics __FORCETOC__ ==Definition== The term ‘plastics’ refers to synthetic organic materials that contain '''macromolecules''' as essential components [1]. All natural materials (rubber, protein, cellulose) and plastics contain molecules as their smallest particles, which in turn consist of a large number of atoms. The term ‘macromolecule’ tak...")

N 13:31

Notch diffhist +3,175 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Kerb}} {{PSM_Infobox}} Notch __FORCETOC__ ==Definition== The distinction between the fracture mechanics terms notch and crack is often somewhat blurred in the literature. Notches and cracks differ in that the inner boundary surfaces of a crack are in contact in the unloaded state, whereas they are not in the case of a notch. From a mathematical point of view...")

N 13:18

Multipurpose Test Specimen diffhist +3,841 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Vielzweckprüfkörper}} {{PSM_Infobox}} Multipurpose test specimen __FORCETOC__ ==Fundamentals== The multipurpose test specimen used for the polymer testing is standardised by ISO 3167 [1]. The '''figure 1''' shows the specified geometries for the multipurpose test specimen of type 1A and 1B as well as permissible specimen's forms according to ISO 527 [2]. file:multipurposespecimen...")

N 13:00

Materials Testing diffhist +6,088 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Werkstoffprüfung}} {{PSM_Infobox}} Materials Testing __FORCETOC__ ==Development of the scientific discipline== The development of the scientific discipline of ‘materials testing’ is closely linked to the dynamic development in materials science and materials engineering. The textbooks written by Blumenauer [1−3] provide an excellent...")

N 12:59

Material Value diffhist +2,657 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Werkstoffkennwert}} {{PSM_Infobox}} Material value __FORCETOC__ ==Terminology== Material values (also characteristic values) represent the quantitative relationship between the material properties and the stress conditions for a particular material. A material value thus represents a numerical value with the associated physical unit of the property (see Material Parameter|material p...")

N 12:59

Material & Werkstoff diffhist +9,285 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Werkstoff & Material}} {{PSM_Infobox}} Material & Werkstoff __FORCETOC__ ==Terminology== The targeted use of materials such as wood and bone, stone, glass/ceramics and metals as well as polymer materials, composite materials and material composites has been taking place for thousands of years. Materials have shaped entire epochs in the development of civilization, so i...")

N 12:59

Material Testing Machine diffhist +5,024 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Materialprüfmaschine}} {{PSM_Infobox}} Material testing machine __FORCETOC__ ==General information== Materials testing machines, synonymously also referred to as universal testing machines (UTM), also known as tensile testing machines and simplified universal tester or testing machines, are used to determine physical (mechanical) material properties in materials testing, plastics te...")

N 12:55

Machine Compliance diffhist +6,033 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Maschinennachgiebigkeit}} {{PSM_Infobox}} Machine Compliance __FORCETOC__ ==General principles== In materials testing, machine compliance refers to the deformation of the closed load framework of universal testing machines with two or four frame columns [1, 2] or expansion of the load frame, e.g. of hardness testing machines [3, 4]...")

N 12:44

Load Framework diffhist +2,429 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Lastrahmen}} {{PSM_Infobox}} Load framework __FORCETOC__ Load frames for materials testing machines are available in various constructive designs. Depending on the type of installation, a distinction is made between standing and horizontal testing machines. Standing testing machines are available in table-top and standard designs (see illustration). Depe...")

N 12:43

Linear-viscoelastic Behaviour diffhist +3,148 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Linear-viskoelastisches Verhalten}} {{PSM_Infobox}} Linear-viscoelastic behaviour __FORCETOC__ ==Linear viscoelasticity== The interaction of elastic and viscous behaviour in plastics and their dependence on time and temperature can only be described comprehensibly if one limits oneself to the area of linear-viscoelastic behaviour (see also: Viscoelastic Material Beha...")

2 December 2025

N 10:37

Impact Test diffhist +7,983 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Schlagbiegeversuch}} {{PSM_Infobox}} Impact Test __TOC__ ==Charpy impact test== In 1898, Russel introduced a pendulum hammer as a test device for impact testing. However, this type of experimental test is now not associated with the name Russel, but with that of Charpy, G. A. A., which is the way in which Charpy used this method for impact testing of metallic materials from 1901 onwar...")

N 09:42

Grellmann, Wolfgang diffhist +10,174 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Grellmann, Wolfgang}} {{PSM_Infobox}} Grellmann, Wolfgang __FORCETOC__ 150px {| |- valign="top" |width="50px"|'''Photo''': |width="600px" |Prof. Dr. Wolfgang Grellmann |} [https://de.wikipedia.org/wiki/Wolfgang_Grellmann Prof. Dr. Wolfgang Grellmann], born on 22 July 1949 in [https://de.wikipedia.org/wiki/Ammendorf/Beesen Ammendorf] (today: [https://en.wikipe...")

1 December 2025

			N 11:01		Elastic Modulus 2 changes history +19,974 [Oluschinski (2×)]
					11:01 (cur \| prev) +12 Oluschinski talk contribs (→Ultrasound testing)
			N		09:39 (cur \| prev) +19,962 Oluschinski talk contribs (Created page with "{{Language_sel\|LANG=ger\|ARTIKEL=Elastizitätsmodul}} {{PSM_Infobox}} <span style="font-size:1.2em;font-weight:bold;">Elastic modulus</span> __FORCETOC__ ==Introduction== In addition to the Poisson's ratio, the modulus of elasticity (modulus ''E'') is also an important parameter for describing the energy-elastic properties (see: energy elasticity) of plastics. The short-term moduli ''E''<sub>t...")

N 09:38

Elasticity diffhist +3,164 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Elastizität}} {{PSM_Infobox}} Elasticity plastics __FORCETOC__ ==Types of deformation== Under certain conditions, most materials, or rather the moulded bodies made from them, exhibit elastic behaviour, i.e. they expand under load and then contract again when the load is removed. file:Elasticity_1.jpg {| |- valign="top" |width="50px"|'''Fig. 1''': |width="600px" |Deformation b...")

N 08:44

Deformation diffhist +10,870 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Deformation}} {{PSM_Infobox}} Deformation __FORCETOC__ ==Anisotropic deformation== In many plastics, the relationship between stress and strain is nonlinear even at small deformations ('''Fig. 1a'''). However, as '''Fig. 1''' shows, there is still proportionality between stress and strain. In this case, unlike most metallic materials, the requirement of linear proportion...")

N 07:45

Compression Test Compliance diffhist +8,193 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Druckversuch Nachgiebigkeit}} {{PSM_Infobox}} Compression test compliance __FORCETOC__ ==Factors influenced by the device system== In compression tests to determine the stress–strain behaviour of plastics, it is generally not possible to use a mechanical strain transducer (extensometer, strain gauge) to directly measure the strain on the test speci...")

N 07:43

Compression Test Arrangement diffhist +7,569 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Druckprüfanordnung}} {{PSM_Infobox}} Problems with the execution of the compression test __FORCETOC__ ==Measurement requirements== A number of measurement requirements must be met in order to accurately perform the compression test to evaluate the material behaviour under uniaxial compressive loading [1]. On the one hand, the test arrangement appears to be rel...")

N 07:40

Compression Test diffhist +12,450 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Druckversuch}} {{PSM_Infobox}} Compression test __FORCETOC__ ==Compression test arrangement and loading scheme== The compression test is used to assess the material behaviour under uniaxial compression loading, whereby rectangular prisms, cylinders or tubes can be used as test specimens. '''Figure 1''' schematically illustrates a compression test facility and the test...")

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