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Show new changes starting from 08:43, 5 December 2025

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3 December 2025

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 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...")

2 December 2025

N 10:41

Inertial Load diffhist +4,422 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Aufschlagimpuls}} {{PSM_Infobox}} Initial load, impact impulse or inertial force __FORCETOC__ ==Causes of inertial load== The occurrence of an inertial load (also referred to as inertial force) caused by mass inertia, which is superimposed on the actual deformation behaviour, represents a measurement and evaluation problem in materials testing under dynamic load...")

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...")

			10:37		(Upload log) [Oluschinski (2×)]
					10:37 Oluschinski talk contribs uploaded File:Schlagbeanspruchung Hochgeschwindigkeitspruefung-3.JPG
					10:37 Oluschinski talk contribs uploaded File:ImpLoadHighSpeed Fig1.jpg

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...")

N 09:34

Fracture Types diffhist +6,179 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Brucharten}} {{PSM_Infobox}} Fracture types __FORCETOC__ ==Types of fracture== In fracture mechanics, macroscopic examination of fracture surfaces initially distinguishes between normal stress fracture (separating fracture) and shear fracture. Depending on the type of mechanical stress, uniaxial stress is referred to as fast (bri...")

N 09:24

Fracture Behaviour diffhist +6,411 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Bruchverhalten}} {{PSM_Infobox}} Fracture behaviour, plastics __FORCETOC__ ==General information== Depending on the type and stress conditions, polymer materials (see also: plastics) exhibit very different behaviour at break. Some semi-crystalline polymers such as polyamide (abbreviation: PA), polyethylene (...")

N 09:23

Fracture diffhist +3,047 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Bruch}} {{PSM_Infobox}} Fracture __FORCETOC__ ==The fracture of plastics== Fracture is the most dangerous cause of failure on the material side. The term "fracture" refers to the macroscopic separation of the material leading to the loss of the load-bearing capacity of the body. In the case of plastics, material separation occurs through the brea...")

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 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 07:29

Composite Materials Testing diffhist +10,876 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Prüfung von Verbundwerkstoffen}} {{PSM_Infobox}} Composte materials testing – Fundamentals __FORCETOC__ ==General== Fibre-reinforced composites are a composite of fibres and matrix, whereby the fibres serve to reinforce the matrix. In such composites, the matrix can consist of a thermoplastic (PP, PA or POM) or Thermosets|...")

28 November 2025

N 14:03

Bend Loading diffhist +7,220 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Biegebeanspruchung}} {{PSM_Infobox}} Bend loading __FORCETOC__ ==General== Bending loading is one of the most common types of loading encountered in practice and is therefore of great importance for determining the material values of plastics and fibre composites. The load type is used specifically for the following test methods: * Flexural test f...")

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