{"id":25480,"date":"2024-04-19T07:57:19","date_gmt":"2024-04-19T15:57:19","guid":{"rendered":"https:\/\/chansmachining.com\/medza-klzu-vs-pevnost-v-tahu-pochopenie-klucovych-rozdielov-pevnost-v-tahu\/"},"modified":"2024-12-26T18:51:32","modified_gmt":"2024-12-27T02:51:32","slug":"medza-klzu-vs-pevnost-v-tahu-pochopenie-klucovych-rozdielov-pevnost-v-tahu","status":"publish","type":"post","link":"https:\/\/chansmachining.com\/sk\/medza-klzu-vs-pevnost-v-tahu-pochopenie-klucovych-rozdielov-pevnost-v-tahu\/","title":{"rendered":"Medza klzu VS pevnos\u0165 v \u0165ahu: Pochopenie k\u013e\u00fa\u010dov\u00fdch rozdielov: Pevnos\u0165 v \u0165ahu."},"content":{"rendered":"\n

\u010co je pevnos\u0165 v \u0165ahu?<\/h2>\n\n
\"Kalkulačka
Kalkula\u010dka a vzorec medze klzu<\/figcaption><\/figure>\n\n

Medzi pevnos\u0165 v \u0165ahu<\/zna><\/a>, reprezentovan\u00e1 \u03c3 y<\/strong>, je najvy\u0161\u0161ie nap\u00e4tie, ktor\u00e9 materi\u00e1l znesie pred trvalou deform\u00e1ciou. Touto vlastnos\u0165ou sa meria tv\u00e1rnos\u0165 materi\u00e1lu. Bez dosiahnutia tohto bodu sa v\u0161ak materi\u00e1l po odstr\u00e1nen\u00ed nap\u00e4tia v\u017edy vr\u00e1ti do p\u00f4vodn\u00e9ho tvaru.<\/p>\n\n

Medza klzu sa preukazuje ohnut\u00edm plastick\u00e9ho prav\u00edtka. Prav\u00edtko spo\u010diatku z\u00edskava svoju rovinnos\u0165. Nadmern\u00e9 oh\u00fdbanie v\u0161ak prekro\u010d\u00ed medzu klzu, \u010do m\u00e1 za n\u00e1sledok bu\u010f trval\u00e9 ohnutie, alebo zlomenie. In\u00fdmi slovami, preukazn\u00e9 nap\u00e4tie znamen\u00e1 \u00farove\u0148 nap\u00e4tia, pri ktorej sa za\u010d\u00edna nezvratn\u00e1 zmena, ako pri 0,2 % pred\u013a\u017een\u00ed.<\/p>\n\n

V pr\u00edpade, \u017ee m\u00e1te z\u00e1ujem o flexibilitu kon\u0161trukci\u00ed, ako s\u00fa zavesen\u00e9 mosty, ktor\u00e9 sa prisp\u00f4sobuj\u00fa hmotnosti a vetru, je nevyhnutn\u00e9 zv\u00e1\u017ei\u0165 pevnos\u0165 v \u0165ahu. Ak\u00e9ko\u013evek deform\u00e1cie z tohto bodu klzu znamenaj\u00fa, \u017ee do\u0161lo k poruche, zatia\u013e \u010do in\u00e9, ako napr\u00edklad pru\u017eenie do tvaru „U“, s\u00fa dostato\u010dne prospe\u0161n\u00e9, preto\u017ee vytv\u00e1raj\u00fa konzoly. Od tejto chv\u00edle ide o pevnos\u0165 v \u0165ahu.<\/p>\n\n

Materi\u00e1ly pri nam\u00e1han\u00ed prech\u00e1dzaj\u00fa do poddajnosti, pri ktorej doch\u00e1dza k obnovite\u013enej a\u017e trvalej deform\u00e1cii. Medza klzu meran\u00e1 \u010dasto v N\/m\u00b2 alebo v pascaloch (jednotka medze klzu) ukazuje, \u017ee nad ur\u010ditou \u00farov\u0148ou nap\u00e4tia sa zmeny u\u017e nedaj\u00fa zvr\u00e1ti\u0165 a stali sa nezvratn\u00fdmi; preto na grafe z\u00e1vislosti za\u0165a\u017eenia od pred\u013a\u017eenia pri odch\u00fdlke od proporcionality ukazuje, kde sa za\u010dalo pretrhnutie.<\/p>\n\n

T\u00e1to hodnota je zn\u00e1ma ako medza klzu, ktor\u00e1 sa ur\u010duje \u0165ahovou sk\u00fa\u0161kou pomocou v\u00fdpo\u010dtu medze klzu. Na krivk\u00e1ch sk\u00fa\u0161ky pevnosti vykazuj\u00fa materi\u00e1ly, ako napr\u00edklad niektor\u00e9 plasty, postupn\u00e9 poddajnosti, \u010do z nich rob\u00ed \u010fal\u0161ie u\u017eito\u010dn\u00e9 meradlo ich spr\u00e1vania. D\u00f4kazov\u00e9 nap\u00e4tie\/nap\u00e4tie v rozmedz\u00ed ud\u00e1va ve\u013ekos\u0165 aplikovan\u00e9ho nap\u00e4tia potrebn\u00e9ho len na minim\u00e1lnu trval\u00fa deform\u00e1ciu stanoven\u00fa pri 0,2 % deform\u00e1cii normalizovanej s oh\u013eadom na \u00favahy pre vzorec medze klzu.<\/p>\n\n

Ke\u010f s\u00fa niektor\u00e9 l\u00e1tky, ako napr\u00edklad kovy, mierne nam\u00e1han\u00e9, z\u00edskaj\u00fa sp\u00e4\u0165 svoje p\u00f4vodn\u00e9 vlastnosti ozna\u010dovan\u00e9 ako pru\u017enos\u0165, ale ke\u010f sa vytiahnu tesne za t\u00fato hranicu, doch\u00e1dza k ich trval\u00e9mu pred\u013a\u017eeniu alebo deform\u00e1cii, ktor\u00e1 sa be\u017ene naz\u00fdva plastick\u00fd efekt. „Prebieha po\u010das sk\u00fa\u0161obn\u00fdch protokolov a predstavuje tie v\u00fdpo\u010dty, ktor\u00e9 s\u00fa rozhoduj\u00face pri ur\u010dovan\u00ed toho, \u010do predstavuje medzu klzu.“ Slovo „trval\u00e1“ sa pou\u017e\u00edva na ozna\u010denie trval\u00fdch zmien, ktor\u00e9 nezah\u0155\u0148aj\u00fa \u017eiadne pru\u017en\u00e9 spr\u00e1vanie.<\/p>\n\n

\u010co je pevnos\u0165 v \u0165ahu?<\/h2>\n\n
\"Diagram
Diagram nap\u00e4tia a deform\u00e1cie v \u0165ahu<\/figcaption><\/figure>\n\n

Pevnos\u0165 v \u0165ahu, naz\u00fdvan\u00e1 aj maxim\u00e1lna pevnos\u0165 v \u0165ahu (MTS), ozna\u010duje maxim\u00e1lne nap\u00e4tie, ktor\u00e9 materi\u00e1l vydr\u017e\u00ed v natiahnutom alebo natiahnutom stave, k\u00fdm sa neroztvor\u00ed alebo neroztrhne. Spolu s \u010fal\u0161\u00edmi vlastnos\u0165ami m\u00e1 t\u00e1to vlastnos\u0165 ve\u013ek\u00fd v\u00fdznam pre odhalenie spr\u00e1vania sa materi\u00e1lov pri za\u0165a\u017een\u00ed \u0165ahom. M\u00f4\u017ee pom\u00f4c\u0165 pos\u00fadi\u0165 vhodnos\u0165 na r\u00f4zne aplik\u00e1cie, napr\u00edklad v stroj\u00e1rstve alebo vo v\u00fdrobe.<\/p>\n\n

Pevnos\u0165 v \u0165ahu sa zvy\u010dajne meria pomocou sk\u00fa\u0161ky \u0165ahom: po\u010das sk\u00fa\u0161ky sa materi\u00e1l po dosiahnut\u00ed najvy\u0161\u0161ieho pr\u00edpustn\u00e9ho za\u0165a\u017eenia natiahne a\u017e do bodu poru\u0161enia a vynesie sa na krivku nap\u00e4tie-deform\u00e1cia. Maxim\u00e1lny bod na tejto krivke zodpoved\u00e1 pevnosti materi\u00e1lu v \u0165ahu. Na zistenie pevnosti v \u0165ahu mo\u017eno pou\u017ei\u0165 aj rovnicu sigma = Pf\/Ao (sign\u00e1l je pevnos\u0165 v \u0165ahu v N\/m2 alebo v Pascaloch; Pf je za\u0165a\u017eenie pri lome a Ao je p\u00f4vodn\u00e1 plocha prierezu).<\/p>\n\n

Silov\u00e9 nap\u00e4tie je pridru\u017een\u00e1 vlastnos\u0165, ktor\u00e1 definuje odpor, ktor\u00fd zabra\u0148uje tomu, aby sa materi\u00e1l pri ur\u010ditom nam\u00e1han\u00ed rozkol\u00edsal. Tento bod t\u00fdkaj\u00faci sa medze klzu je prechodovou oblas\u0165ou. To znamen\u00e1, \u017ee materi\u00e1l po odstr\u00e1nen\u00ed p\u00f4sobiaceho nap\u00e4tia u\u017e nezost\u00e1va v pru\u017enom stave.<\/p>\n\n

\"Graf
Graf sk\u00fa\u0161ky pevnosti v \u0165ahu<\/figcaption><\/figure>\n\n

Zd\u013ahav\u00e9 rev\u00edzie pevnosti \u010dasto zah\u0155\u0148aj\u00fa \u010fal\u0161ie ozna\u010denia vr\u00e1tane pevnosti pri zlome, pevnosti pri pretrhnut\u00ed a nap\u00e4tia pri zlome, \u010do s\u00fa alternat\u00edvne n\u00e1zvy pre jednotku nap\u00e4tia, pri ktorej sa teleso rozlom\u00ed na dva odli\u0161n\u00e9 fragmenty.<\/p>\n\n

Znalos\u0165 t\u00fdchto vlastnost\u00ed je pre stroj\u00e1rske a priemyseln\u00e9 diely nevyhnutn\u00e1. Po\u010das svojej \u017eivotnosti musia vydr\u017ea\u0165 o\u010dak\u00e1van\u00e9 nam\u00e1hanie. Vlastnosti s\u00fa k\u013e\u00fa\u010dov\u00e9 aj pri v\u00fdbere materi\u00e1lov s oh\u013eadom na bezpe\u010dnos\u0165, v\u00fdkon a premenliv\u00e9 podmienky. Napr\u00edklad teplota m\u00f4\u017ee ovplyvni\u0165 pevnos\u0165 materi\u00e1lov v \u0165ahu, ako je me\u010f.<\/p>\n\n

H\u013abkov\u00e9 porovnanie medze klzu a pevnosti v \u0165ahu<\/strong><\/h2>\n\n
\"Ako
Ako zisti\u0165 medzu klzu?<\/figcaption><\/figure>\n\n

Vysvetlenie hranice pru\u017enosti jemnosti a \u0165a\u017enosti nap\u00e4tia<\/h3>\n\n

Medza klzu ud\u00e1va nap\u00e4tie, ktor\u00e9 je potrebn\u00e9 na plastick\u00fa deform\u00e1ciu. Medza pevnosti v \u0165ahu v\u0161ak ur\u010duje \u00farove\u0148 nap\u00e4tia, pri ktorej sila sp\u00f4sob\u00ed poru\u0161enie materi\u00e1lu. Medza klzu je v\u00fdrazn\u00e1 v materi\u00e1loch, ktor\u00e9 sa deformuj\u00fa (ohybom alebo strihom), ako s\u00fa tv\u00e1rne materi\u00e1ly. Naproti tomu pevnos\u0165 v \u0165ahu je d\u00f4le\u017eitou vlastnos\u0165ou v krehk\u00fdch materi\u00e1loch, ktor\u00e9 sa ve\u013emi \u013eahko l\u00e1mu.<\/p>\n\n

Deform\u00e1cia a proces testovania<\/h3>\n\n

Po prv\u00e9, prekro\u010den\u00edm medze klzu makroskopick\u00fdch materi\u00e1lov sa za\u010d\u00edna proces ich deform\u00e1cie. Potom sa uskuto\u010d\u0148uj\u00fa sk\u00fa\u0161ky pevnosti v \u0165ahu, ktor\u00e9 zah\u0155\u0148aj\u00fa deform\u00e1ciu. V pr\u00edpade krehk\u00fdch materi\u00e1lov mo\u017eno pevnos\u0165 v \u0165ahu ch\u00e1pa\u0165 ako medzu klzu a je ve\u013emi spojen\u00e1 s malou deform\u00e1ciou.<\/p>\n\n

\u00davahy o materi\u00e1loch pri navrhovan\u00ed<\/h3>\n\n

Spo\u013eahlivos\u0165 sa pri kon\u0161trukcii kon\u0161trukci\u00ed z materi\u00e1lov, ktor\u00e9 pod\u013eahn\u00fa, dosahuje uprednost\u0148ovan\u00edm medze klzu pred \u0165ahovou deform\u00e1ciou. T\u00e1to vlastnos\u0165 z nich rob\u00ed pevn\u00e9 a tv\u00e1rne materi\u00e1ly, ktor\u00e9 sa m\u00f4\u017eu deformova\u0165 relat\u00edvne ve\u013ekou deform\u00e1ciou sk\u00f4r, ako dosiahnu svoju pevnos\u0165 v \u0165ahu. Pokia\u013e ide o krehk\u00e9 materi\u00e1ly, hlavn\u00fdm faktorom je „pevnos\u0165 v \u0165ahu“.<\/p>\n\n

Anal\u00fdza nam\u00e1hania pri navrhovan\u00ed<\/h3>\n\n

Na rozdiel od pevnosti v \u0165ahu, ktor\u00e1 je jednoosov\u00e1 a sk\u00fama len jednoosov\u00e9 za\u0165a\u017eenie, sa pevnos\u0165 v \u0165ahu sk\u00fama pre r\u00f4zne nap\u00e4\u0165ov\u00e9 stavy, ktor\u00e9 sa vyskytuj\u00fa vo viacer\u00fdch osiach. Ke\u010f materi\u00e1ly prekro\u010dia medzu klzu, deformuj\u00fa sa, k\u00fdm nedosiahnu medzu pevnosti v \u0165ahu, ktor\u00e1 sa za\u010d\u00edna pri vy\u0161\u0161ej \u010d\u00edselnej hodnote.<\/p>\n\n

Presnos\u0165 meran\u00ed<\/h3>\n\n

Pevnos\u0165 v \u0165ahu je pri v\u00e4\u010d\u0161ine materi\u00e1lov vr\u00e1tane ocele n\u00e1chyln\u00e1 na nepresn\u00e9 predpovede. Na druhej strane, namiesto toho, aby sa pevnos\u0165 v \u0165ahu op\u00e4\u0165 \u0165a\u017eko odhadovala, v materi\u00e1loch, ako je oce\u013e, sa pevnos\u0165 v \u0165ahu d\u00e1 presne vypo\u010d\u00edta\u0165. Je potrebn\u00e9 pozna\u0165 rozdiely medzi siln\u00fdmi a slab\u00fdmi vlastnos\u0165ami. Rozli\u0161ovanie medzi nimi je v\u0161ak prvorad\u00e9 kv\u00f4li praktick\u00fdm v\u00fdhod\u00e1m.<\/p>\n\n

Ako vybra\u0165 ide\u00e1lny materi\u00e1l pre potreby v\u00e1\u0161ho projektu\uff1f<\/h2>\n\n

Pri rozhodovan\u00ed o v\u00fdbere vhodn\u00e9ho materi\u00e1lu pre v\u00e1\u0161 projekt je potrebn\u00e9 zoh\u013eadni\u0165 faktory pevnosti v \u0165ahu a pevnosti v tlaku. Tieto ukazovatele ukazuj\u00fa, ako materi\u00e1l reaguje na \u0165ah. Ur\u010denie toho, kedy a ako pou\u017ei\u0165 tieto ukazovatele, ovplyv\u0148uje bezpe\u010dnos\u0165 projektu a jeho \u00faspe\u0161n\u00fd v\u00fdsledok. Niekedy je nevyhnutn\u00e9 zv\u00e1\u017ei\u0165 aj medzu pevnosti v \u0165ahu aj medzu klzu.<\/p>\n\n

Posudzovanie medzn\u00fdch hodn\u00f4t nam\u00e1hania materi\u00e1lu<\/h3>\n\n

T\u00fato inform\u00e1ciu by ste mali pozna\u0165, preto\u017ee ud\u00e1va \u00farove\u0148 nam\u00e1hania, ktor\u00fa materi\u00e1l znesie, k\u00fdm sa nedeformuje alebo nezlom\u00ed. V takomto prostred\u00ed, kde m\u00f4\u017ee by\u0165 minim\u00e1lne a\u017e stredn\u00e9 nam\u00e1hanie, sa m\u00f4\u017eu pou\u017e\u00edva\u0165 materi\u00e1ly s ni\u017e\u0161ou pevnos\u0165ou v \u0165ahu a medzou klzu. Pri t\u00fdchto projektoch je najd\u00f4le\u017eitej\u0161ia vhodnos\u0165 materi\u00e1lu, aby vydr\u017eal najv\u00e4\u010d\u0161ie za\u0165a\u017eenia a extr\u00e9mne nam\u00e1hanie. Z toho vypl\u00fdva, \u017ee pevnos\u0165 tohto materi\u00e1lu by mala prevy\u0161ova\u0165 pevnos\u0165 p\u00f4sobiacich s\u00edl prostredia.<\/p>\n\n

Vyv\u00e1\u017eenie vlastnost\u00ed materi\u00e1lu<\/h3>\n\n

V\u00fdber vhodn\u00e9ho materi\u00e1lu m\u00e1 v ka\u017edom projekte k\u013e\u00fa\u010dov\u00fd v\u00fdznam. Spomedzi nich mus\u00edte dba\u0165 na vyv\u00e1\u017eenos\u0165 medze klzu, pevnosti v \u0165ahu a \u010fal\u0161\u00edch detailov. Toto hlasovanie ovplyv\u0148uje \u017eivotaschopnos\u0165 syst\u00e9mu, ktor\u00e1 sa prejavuje v bezpe\u010dnosti a spo\u013eahlivosti. M\u00f4\u017ee d\u00f4js\u0165 k vz\u00e1jomn\u00e9mu prepojeniu t\u00fdchto vlastnost\u00ed na spr\u00e1vanie sa materi\u00e1lov. Preto znalos\u0165 t\u00fdchto korel\u00e1ci\u00ed zohr\u00e1va v\u00fdznamn\u00fa \u00falohu.<\/p>\n\n

V\u00fdber materi\u00e1lov pod\u013ea potrieb aplik\u00e1cie.<\/h3>\n\n

Na za\u010diatku v\u00fdberu materi\u00e1lu je podrobn\u00e1 anal\u00fdza cie\u013eov projektu. Hmotnos\u0165, teplota a odolnos\u0165 vo\u010di kor\u00f3zii s\u00fa faktory, ktor\u00e9 treba zoh\u013eadni\u0165. Zos\u00faladenie s pevnos\u0165ou materi\u00e1lu vo\u010di o\u010dak\u00e1van\u00fdm nam\u00e1haniam je z\u00e1kladn\u00fdm faktorom pri ur\u010dovan\u00ed optim\u00e1lnej v\u00fdkonnosti materi\u00e1lu.<\/p>\n\n

Faktory ovplyv\u0148uj\u00face v\u00fdber materi\u00e1lu<\/h3>\n\n

Pri v\u00fdbere materi\u00e1lov berte do \u00favahy r\u00f4zne faktory. V\u00fdber materi\u00e1lov m\u00f4\u017ee by\u0165 podmienen\u00fd n\u00e1kladmi, dostupnos\u0165ou a spracovate\u013enos\u0165ou \u010eal\u0161\u00edm aspektom, ktor\u00fd je potrebn\u00e9 zv\u00e1\u017ei\u0165, s\u00fa environment\u00e1lne charakteristiky miesta, kde pl\u00e1nujete technol\u00f3giu pou\u017e\u00edva\u0165.<\/p>\n\n

Pevnos\u0165 v \u0165ahu a pevnos\u0165 v \u0165ahu be\u017en\u00fdch zliatin<\/h2>\n\n
Materi\u00e1l<\/td>V\u00fd\u0165a\u017enos\u0165<\/td>Maxim\u00e1lna sila<\/td><\/tr>
Cis\u00e1rsky (ksi)<\/td>Metrick\u00e9 (MPa)<\/td>Cis\u00e1rsky (ksi)<\/td>Metrick\u00e9 (MPa)<\/td><\/tr>
min.<\/td>max.<\/td>min.<\/td>max.<\/td>min.<\/td>max.<\/td>min.<\/td>max.<\/td><\/tr>
Hlin\u00edk<\/td>1<\/td>1.6<\/td>7<\/td>11<\/td>7<\/td>28<\/td>48<\/td>193<\/td><\/tr>
Hlin\u00edkov\u00fd bronz<\/td>32<\/td>45<\/td>221<\/td>310<\/td>78<\/td>85<\/td>540<\/td>585<\/td><\/tr>
Ber\u00fdlium<\/td>35<\/td>50<\/td>240<\/td>345<\/td>45<\/td>51<\/td>310<\/td>370<\/td><\/tr>
Ber\u00fdliov\u00e1 me\u010f<\/td>140<\/td>175<\/td>965<\/td>1205<\/td>59<\/td>203<\/td>410<\/td>1480<\/td><\/tr>
Mosadz (60\/40)<\/td>21<\/td>50<\/td>145<\/td>345<\/td>53<\/td>70<\/td>370<\/td>485<\/td><\/tr>
Mosadz (\u017elt\u00e1)<\/td>15<\/td>61<\/td>105<\/td>425<\/td>47<\/td>91<\/td>325<\/td>625<\/td><\/tr>
Mosadz (\u010derven\u00e1)<\/td>12<\/td>63<\/td>83<\/td>435<\/td>40<\/td>84<\/td>275<\/td>580<\/td><\/tr>
Bronz<\/td>20<\/td>55<\/td>137<\/td>380<\/td>35<\/td>85<\/td>241<\/td>586<\/td><\/tr>
Kadmium<\/td>9<\/td>9<\/td>64<\/td>64<\/td>9<\/td>11<\/td>62<\/td>78<\/td><\/tr>
Liatina (siv\u00e1)<\/td>14<\/td>40<\/td>98<\/td>276<\/td>22<\/td>63<\/td>140<\/td>431<\/td><\/tr>
Chr\u00f3m<\/td>29<\/td>36<\/td>200<\/td>250<\/td>39<\/td>42<\/td>270<\/td>290<\/td><\/tr>
Kobalt<\/td>19<\/td>29<\/td>135<\/td>200<\/td>33<\/td>101<\/td>230<\/td>700<\/td><\/tr>
Me\u010f<\/td>10<\/td>10<\/td>70<\/td>70<\/td>33<\/td>55<\/td>230<\/td>380<\/td><\/tr>
Zlato (24K) Pure<\/td>29<\/td>29<\/td>205<\/td>205<\/td>19<\/td>32<\/td>130<\/td>220<\/td><\/tr>
Iron<\/td>17<\/td>21<\/td>120<\/td>150<\/td>26<\/td>30<\/td>180<\/td>210<\/td><\/tr>
\u017delezo (liate)<\/td>14<\/td>40<\/td>98<\/td>276<\/td>22<\/td>63<\/td>140<\/td>431<\/td><\/tr>
\u017delezo (kovan\u00e9)<\/td>23<\/td>32<\/td>159<\/td>221<\/td>49<\/td>49<\/td>234<\/td>372<\/td><\/tr>
Vedenie<\/td>0.72<\/td>2<\/td>5<\/td>19<\/td>1.7<\/td>4.6<\/td>12<\/td>32<\/td><\/tr>
Zliatina hor\u010d\u00edka<\/td>2.9<\/td>23<\/td>20<\/td>160<\/td>15<\/td>25<\/td>20<\/td>280<\/td><\/tr>
Nikel<\/td>20<\/td>50<\/td>140<\/td>350<\/td>45<\/td>110<\/td>310<\/td>760<\/td><\/tr>
Platinum<\/td>5.5<\/td>26<\/td>38<\/td>180<\/td>17<\/td>20<\/td>120<\/td>140<\/td><\/tr>
Silver<\/td>8<\/td>8<\/td>55<\/td>55<\/td>20<\/td>46<\/td>150<\/td>360<\/td><\/tr>
Oce\u013e (uhl\u00edkov\u00e1)<\/td>35<\/td>100<\/td>248<\/td>690<\/td>49<\/td>276<\/td>340<\/td>1900<\/td><\/tr>
Nerezov\u00e1 oce\u013e (304)<\/td>14<\/td>14<\/td>97<\/td>97<\/td>67<\/td>160<\/td>460<\/td>1100<\/td><\/tr>
Nerezov\u00e1 oce\u013e (316)<\/td>13<\/td>13<\/td>96<\/td>96<\/td>67<\/td>125<\/td>460<\/td>860<\/td><\/tr>
C\u00edn<\/td>1.3<\/td>1.3<\/td>9<\/td>9<\/td>3<\/td>3<\/td>19<\/td>19<\/td><\/tr>
Tit\u00e1n<\/td>14<\/td>14<\/td>98<\/td>98<\/td>33<\/td>67<\/td>230<\/td>460<\/td><\/tr>
Volfr\u00e1m<\/td>80<\/td>80<\/td>550<\/td>550<\/td>100<\/td>500<\/td>689<\/td>3447<\/td><\/tr>
Zinok<\/td><\/td><\/td><\/td><\/td>20<\/td>21<\/td>135<\/td>145<\/td><\/tr>
(Zdroj tabu\u013eky: https:\/\/www.engineeringtoolbox.com\/young-modulus-d_417.html<\/zna><\/a>)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

Z\u00e1ver<\/strong><\/h2>\n\n

V\u00fdber spr\u00e1vneho materi\u00e1lu zah\u0155\u0148a hlbok\u00e9 pochopenie medze klzu a pevnosti v \u0165ahu. Tieto znalosti zabezpe\u010dia, \u017ee v\u00e1\u0161 projekt odol\u00e1 v\u0161etk\u00fdm prev\u00e1dzkov\u00fdm za\u0165a\u017eeniam, \u010d\u00edm sa zv\u00fd\u0161i jeho trvanlivos\u0165 a v\u00fdkonnos\u0165.<\/p>\n\n

Spolupracujte s nami a z\u00edskajte odborn\u00e9 poradenstvo pri v\u00fdbere materi\u00e1lov na optimaliz\u00e1ciu v\u00fdkonu a bezpe\u010dnosti v\u00e1\u0161ho projektu. Budujme \u00faspech spolo\u010dne!<\/p>\n","protected":false},"excerpt":{"rendered":"

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