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	<id>https://en.wiki.polymerservice-merseburg.de/index.php?action=history&amp;feed=atom&amp;title=Sound_Emission</id>
	<title>Sound Emission - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://en.wiki.polymerservice-merseburg.de/index.php?action=history&amp;feed=atom&amp;title=Sound_Emission"/>
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	<updated>2026-04-22T20:08:41Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://en.wiki.polymerservice-merseburg.de/index.php?title=Sound_Emission&amp;diff=837&amp;oldid=prev</id>
		<title>Oluschinski at 13:28, 12 December 2025</title>
		<link rel="alternate" type="text/html" href="https://en.wiki.polymerservice-merseburg.de/index.php?title=Sound_Emission&amp;diff=837&amp;oldid=prev"/>
		<updated>2025-12-12T13:28:48Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:28, 12 December 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l12&quot;&gt;Line 12:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 12:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;They can be caused by both microscopic and macroscopic processes. The [[Acoustic Emission|emissions]] can be caused by various source mechanisms:&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;They can be caused by both microscopic and macroscopic processes. The [[Acoustic Emission|emissions]] can be caused by various source mechanisms:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Deformation&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&lt;/del&gt;Plastic deformation|Plastic deformations]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Deformation&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;#&lt;/ins&gt;Plastic deformation|Plastic deformations]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Crack Formation|Crack formation]], [[Crack Propagation|crack propagation]], and [[Fracture|fracture processes]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Crack Formation|Crack formation]], [[Crack Propagation|crack propagation]], and [[Fracture|fracture processes]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Friction Force|Friction]] processes in a [[Crack|crack]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Friction Force|Friction]] processes in a [[Crack|crack]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Oluschinski</name></author>
	</entry>
	<entry>
		<id>https://en.wiki.polymerservice-merseburg.de/index.php?title=Sound_Emission&amp;diff=595&amp;oldid=prev</id>
		<title>Oluschinski: Created page with &quot;{{Language_sel|LANG=ger|ARTIKEL=Schallemission}} {{PSM_Infobox}} &lt;span style=&quot;font-size:1.2em;font-weight:bold;&quot;&gt;Sound emission&lt;/span&gt; __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...&quot;</title>
		<link rel="alternate" type="text/html" href="https://en.wiki.polymerservice-merseburg.de/index.php?title=Sound_Emission&amp;diff=595&amp;oldid=prev"/>
		<updated>2025-12-05T13:25:41Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{Language_sel|LANG=ger|ARTIKEL=Schallemission}} {{PSM_Infobox}} &amp;lt;span style=&amp;quot;font-size:1.2em;font-weight:bold;&amp;quot;&amp;gt;Sound emission&amp;lt;/span&amp;gt; __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.  &lt;a href=&quot;/index.php/File:Sound_Emission-1.jpg&quot; title=&quot;File:Sound Emission-1.jpg&quot;&gt;600px&lt;/a&gt;  They can be caused by both microscopic and macroscopic processes. The &lt;a href=&quot;/index.php/Acoustic_Emission&quot; title=&quot;Acoustic Emission&quot;&gt;emissions&lt;/a&gt; can be caused by...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Language_sel|LANG=ger|ARTIKEL=Schallemission}}&lt;br /&gt;
{{PSM_Infobox}}&lt;br /&gt;
&amp;lt;span style=&amp;quot;font-size:1.2em;font-weight:bold;&amp;quot;&amp;gt;Sound emission&amp;lt;/span&amp;gt;&lt;br /&gt;
__FORCETOC__&lt;br /&gt;
&lt;br /&gt;
==Definition==&lt;br /&gt;
&lt;br /&gt;
Sound emissions always occur in solids when certain material stresses are exceeded and elastic energy is released in the form of mechanical stress waves.&lt;br /&gt;
&lt;br /&gt;
[[File:Sound Emission-1.jpg|600px]]&lt;br /&gt;
&lt;br /&gt;
They can be caused by both microscopic and macroscopic processes. The [[Acoustic Emission|emissions]] can be caused by various source mechanisms:&lt;br /&gt;
&lt;br /&gt;
* [[Deformation&amp;#039;Plastic deformation|Plastic deformations]]&lt;br /&gt;
* [[Crack Formation|Crack formation]], [[Crack Propagation|crack propagation]], and [[Fracture|fracture processes]]&lt;br /&gt;
* [[Friction Force|Friction]] processes in a [[Crack|crack]]&lt;br /&gt;
* Phase transformation processes&lt;br /&gt;
&lt;br /&gt;
==Frequency range for sound emission testing==&lt;br /&gt;
&lt;br /&gt;
In [[Sound Emission Analysis|sound emission analysis]], the occurrence of sound emissions is used to obtain in-depth information, e.g., on interface properties in [[Fibre-reinforced Plastics|fibre-reinforced plastics]].&lt;br /&gt;
&lt;br /&gt;
[[File:Sound Emission-2.jpg|600px]]&lt;br /&gt;
&lt;br /&gt;
==See also==&lt;br /&gt;
&lt;br /&gt;
* [[Acoustic Emission|Acoustic emission]]&lt;br /&gt;
* [[Sound Emission Experimental Conditions|Sound emission experimental conditions]]&lt;br /&gt;
* [[Sound Emission Analysis|Sound emission analysis]]&lt;br /&gt;
* [[Sound Emission Testing|Sound emission testing]]&lt;br /&gt;
* [[Sound Velocity|Sound velocity]]&lt;br /&gt;
* [[Ultrasonic Birefringence|Ultrasonic birefringence]]&lt;br /&gt;
* [[Ultrasonic Sensors|Ultrasonic sensors]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Reference&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
* Bardenheier, R.: Schallemissionsuntersuchungen an polymeren Verbundwerkstoffen. Part I: Das Schallemissionsverfahren als quasi-zerstörungsfreie Werkstoffprüfung. Z. Werkstofftechnik 11 (1980) pp. 41–46&lt;br /&gt;
&lt;br /&gt;
[[Category:Acoustic Test Methods_Ultrasonics]]&lt;/div&gt;</summary>
		<author><name>Oluschinski</name></author>
	</entry>
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