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Show new changes starting from 19:34, 5 December 2025

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5 December 2025

N 14:38

Sound Velocity diffhist +10,986 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Schallgeschwindigkeit}} {{PSM_Infobox}} Sound velocity __FORCETOC__ ==General remarks== The sound velocity is an essential property of the medium through which sound travels and describes the time it takes for a wave or wave packet to travel the distance between two points in the medium. This parameter is a basic parameter of Ultrasound Testing|ultrasound tes...")

			14:35		(Upload log) [Oluschinski (3×)]
					14:35 Oluschinski talk contribs uploaded File:Sound Emission Testing-3.jpg
					14:35 Oluschinski talk contribs uploaded File:Sound Emission Testing-2.jpg
					14:34 Oluschinski talk contribs uploaded File:Sound Emission Testing-1.jpg

N 14:31

Sound Emission Experimental Conditions diffhist +7,932 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Schallemission}} {{PSM_Infobox}} Sound emission experimental conditions __FORCETOC__ ==General== Sound emission testing is used on plastics to investigate damage behaviour and locate sources of acoustic emissions in components, and in materials testing and development to characterise dominant Deform...")

			N 14:29		Sound Emission Analysis 2 changes history +6,529 [Oluschinski (2×)]
					14:29 (cur \| prev) −1 Oluschinski talk contribs
			N		14:26 (cur \| prev) +6,530 Oluschinski talk contribs (Created page with "{{Language_sel\|LANG=ger\|ARTIKEL=Schallemissionsanalyse}} {{PSM_Infobox}} <span style="font-size:1.2em;font-weight:bold;">Sound emission analysis</span> __FORCETOC__ ==General== One method of materials testing that has gained importance in recent years is sound emission analysis (SEA) or sound emission testing. This is an acoustic testing method for investigating sound emissions with the aim of determin...")

N 14:25

Sound Emission diffhist +1,736 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Schallemission}} {{PSM_Infobox}} Sound emission __FORCETOC__ ==Definition== Sound emissions always occur in solids when certain material stresses are exceeded and elastic energy is released in the form of mechanical stress waves. 600px They can be caused by both microscopic and macroscopic processes. The emissions can be caused by...")

3 December 2025

N 13:01

Measured Variable diffhist +2,542 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Messgröße}} {{PSM_Infobox}} Measuring variable __FORCETOC__ A measured variable is a physical quantity that is determined by a measurement process. Typical physical measured variables include force, length, mass, temperature, time, etc. The value of the measured variable obtained from a measuring device is referred to as the measured value; it is formed from a nu...")

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 12:58

Material Parameter diffhist +2,381 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Werkstoffkenngröße}} {{PSM_Infobox}} Material parameter __FORCETOC__ ==Terminology== A material parameter (also parameter) is a quantitatively determinable property of a material. It can either be measured directly (physical measurand) or calculated from other measurands (derived parameter). In the technical literature, Blumenauer [1—3] in particular has pointed out a clear separat...")

2 December 2025

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 09:18

Fibre-reinforced Plastics diffhist +11,638 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Faserverstärkte Kunststoffe}} {{PSM_Infobox}} Fibre-reinforced plastics __FORCETOC__ ==Classification of fibre-reinforced plastics== The term ‘fibre-reinforced plastics’ (FRP) or ‘fibre-plastic composites’ is a synonym for an extremely heterogeneous group of materials, which is characterised by the type of fibre reinforcement and the fibre volume f...")

1 December 2025

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 08:08

Crack Propagation diffhist +4,118 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Rissausbreitung}} {{PSM_Infobox}} Crack propagation __FORCETOC__ ==General terms== Crack propagation is a physical process that occurs under certain conditions in a moulded part or component after crack initiation and can lead to macroscopic separation and fracture. Crack propagation occurs in the material when material-dependent limit values, such as the critical stress intensity fa...")

N 07:54

Crack Formation diffhist +5,637 Oluschinski talk contribs (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Bruchentstehung}} {{PSM_Infobox}} Crack formation __FORCETOC__ ==The deformation energy for fracture formation== In order to explain the processes involved in fracture formation, it is useful to compare an unloaded tensile test specimen with a loaded tensile test specimen without and with a crack. 400px {| |- v...")

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