{"id":25251,"date":"2024-04-19T07:57:19","date_gmt":"2024-04-19T15:57:19","guid":{"rendered":"https:\/\/chansmachining.com\/mez-kluzu-vs-pevnost-v-tahu-pochopeni-klicovych-rozdilu-pevnost-v-tahu\/"},"modified":"2024-12-26T18:50:59","modified_gmt":"2024-12-27T02:50:59","slug":"mez-kluzu-vs-pevnost-v-tahu-pochopeni-klicovych-rozdilu-pevnost-v-tahu","status":"publish","type":"post","link":"https:\/\/chansmachining.com\/cs\/mez-kluzu-vs-pevnost-v-tahu-pochopeni-klicovych-rozdilu-pevnost-v-tahu\/","title":{"rendered":"Mez kluzu VS pevnost v tahu: Pochopen\u00ed kl\u00ed\u010dov\u00fdch rozd\u00edl\u016f: pevnost v tahu."},"content":{"rendered":"\n

Co je to pevnost v tahu?<\/h2>\n\n
\"Kalkulačka
Kalkula\u010dka a vzorec meze kluzu<\/figcaption><\/figure>\n\n

Yield strength<\/mark><\/a>, represented by \u03c3 y<\/strong>, is the highest stress that a material can endure before permanent deformation. This property measures the ductility of a material. Without reaching this point, however, the material will always return to its original shape after the removal of stress.<\/p>\n\n

Mez kluzu se prokazuje oh\u00fdb\u00e1n\u00edm plastick\u00e9ho prav\u00edtka. Prav\u00edtko zpo\u010d\u00e1tku op\u011bt z\u00edsk\u00e1 svou rovinnost. Nicm\u00e9n\u011b nadm\u011brn\u00e9 oh\u00fdb\u00e1n\u00ed p\u0159esahuje mez kluzu, co\u017e vede bu\u010f k trval\u00e9mu ohybu, nebo k p\u0159etr\u017een\u00ed. Jin\u00fdmi slovy, pr\u016fkazn\u00e9 nap\u011bt\u00ed znamen\u00e1 \u00farove\u0148 nap\u011bt\u00ed, p\u0159i kter\u00e9 za\u010d\u00edn\u00e1 nevratn\u00e1 zm\u011bna, jako je tomu u prodlou\u017een\u00ed o 0,2 %.<\/p>\n\n

V p\u0159\u00edpad\u011b, \u017ee m\u00e1te z\u00e1jem o flexibilitu konstrukc\u00ed, jako jsou zav\u011b\u0161en\u00e9 mosty, kter\u00e9 se p\u0159izp\u016fsobuj\u00ed hmotnosti a v\u011btru, je nezbytn\u00e9 vz\u00edt v \u00favahu pevnost v tahu. Jak\u00e9koli deformace od tohoto bodu kluzu znamenaj\u00ed, \u017ee do\u0161lo k selh\u00e1n\u00ed, zat\u00edmco jin\u00e9, jako je pru\u017een\u00ed zp\u011bt do tvaru „U“, jsou dostate\u010dn\u011b v\u00fdhodn\u00e9, proto\u017ee vytv\u00e1\u0159ej\u00ed konzoly. Od t\u00e9to chv\u00edle jde o pevnost v tahu.<\/p>\n\n

Materi\u00e1ly se p\u0159i nam\u00e1h\u00e1n\u00ed dost\u00e1vaj\u00ed do stavu poddajnosti, kdy doch\u00e1z\u00ed k obnoviteln\u00e9 a\u017e trval\u00e9 deformaci. Mez kluzu m\u011b\u0159en\u00e1 \u010dasto v N\/m\u00b2 nebo v pascalech (jednotka meze kluzu) ukazuje, \u017ee nad ur\u010ditou \u00farovn\u00ed nap\u011bt\u00ed ji\u017e nelze zm\u011bny zvr\u00e1tit a st\u00e1vaj\u00ed se nevratn\u00fdmi; ukazuje tedy, kde na diagramu z\u00e1vislosti zat\u00ed\u017een\u00ed na prodlou\u017een\u00ed p\u0159i odchylce od \u00fam\u011brnosti za\u010dalo prask\u00e1n\u00ed.<\/p>\n\n

Jedn\u00e1 se o tzv. mez kluzu, kter\u00e1 se ur\u010duje tahovou zkou\u0161kou pomoc\u00ed v\u00fdpo\u010dtu meze kluzu. Na zku\u0161ebn\u00edch k\u0159ivk\u00e1ch se u materi\u00e1l\u016f, jako jsou n\u011bkter\u00e9 plasty, projevuje postupn\u00e9 poddajn\u00e9 nam\u00e1h\u00e1n\u00ed, co\u017e z nich \u010din\u00ed dal\u0161\u00ed u\u017eite\u010dn\u00e9 m\u011b\u0159\u00edtko jejich chov\u00e1n\u00ed. Pr\u016fkazn\u00ed nap\u011bt\u00ed\/n\u00e1hodn\u00e9 nap\u011bt\u00ed ud\u00e1v\u00e1 velikost aplikovan\u00e9ho nap\u011bt\u00ed pot\u0159ebn\u00e9ho jen pro minim\u00e1ln\u00ed trvalou deformaci stanovenou na 0,2 % deformace normalizovanou s ohledem na \u00favahy pro vzorec meze kluzu.<\/p>\n\n

Kdy\u017e jsou n\u011bkter\u00e9 l\u00e1tky, jako nap\u0159\u00edklad kovy, m\u00edrn\u011b nam\u00e1h\u00e1ny, z\u00edskaj\u00ed zp\u011bt sv\u00e9 p\u016fvodn\u00ed vlastnosti ozna\u010dovan\u00e9 jako pru\u017enost, ale kdy\u017e jsou vyta\u017eeny t\u011bsn\u011b za tuto mez, doch\u00e1z\u00ed k jejich trval\u00e9mu prodlou\u017een\u00ed nebo deformaci, kter\u00e1 se b\u011b\u017en\u011b naz\u00fdv\u00e1 efekt plasticity. „Prob\u00edh\u00e1 b\u011bhem zku\u0161ebn\u00edch protokol\u016f a p\u0159edstavuje ty v\u00fdpo\u010dty, kter\u00e9 jsou rozhoduj\u00edc\u00ed pro ur\u010den\u00ed toho, co p\u0159edstavuje mez kluzu.“ Slovo „trval\u00e1“ se pou\u017e\u00edv\u00e1 pro ozna\u010den\u00ed trval\u00fdch zm\u011bn, kter\u00e9 nezahrnuj\u00ed \u017e\u00e1dn\u00e9 pru\u017en\u00e9 chov\u00e1n\u00ed.<\/p>\n\n

Co je pevnost v tahu?<\/h2>\n\n
\"Diagram
Diagram nap\u011bt\u00ed v tahu a deformace<\/figcaption><\/figure>\n\n

Pevnost v tahu, naz\u00fdvan\u00e1 tak\u00e9 maxim\u00e1ln\u00ed pevnost v tahu (MTS), ozna\u010duje maxim\u00e1ln\u00ed nap\u011bt\u00ed, kter\u00e9 materi\u00e1l vydr\u017e\u00ed v nata\u017een\u00e9m nebo ta\u017een\u00e9m stavu, ne\u017e se rozev\u0159e nebo p\u0159etrhne. Spolu s dal\u0161\u00edmi vlastnostmi m\u00e1 tato vlastnost velk\u00fd v\u00fdznam pro odhalen\u00ed chov\u00e1n\u00ed materi\u00e1l\u016f p\u0159i tahov\u00e9m zat\u00ed\u017een\u00ed. M\u016f\u017ee pomoci posoudit vhodnost pro r\u016fzn\u00e9 aplikace, nap\u0159\u00edklad ve stroj\u00edrenstv\u00ed nebo v\u00fdrob\u011b.<\/p>\n\n

Pevnost v tahu se obvykle m\u011b\u0159\u00ed tahovou zkou\u0161kou: p\u0159i zkou\u0161ce se materi\u00e1l po dosa\u017een\u00ed nejvy\u0161\u0161\u00edho p\u0159\u00edpustn\u00e9ho zat\u00ed\u017een\u00ed nat\u00e1hne a\u017e do bodu p\u0159etr\u017een\u00ed a vynese se na k\u0159ivku nap\u011bt\u00ed-deformace. Maxim\u00e1ln\u00ed bod na t\u00e9to k\u0159ivce odpov\u00edd\u00e1 pevnosti materi\u00e1lu v tahu. Ke zji\u0161t\u011bn\u00ed pevnosti v tahu lze tak\u00e9 pou\u017e\u00edt rovnici sigma = Pf\/Ao (sign\u00e1l je pevnost v tahu v N\/m2 nebo Pascalech; Pf je zat\u00ed\u017een\u00ed p\u0159i lomu a Ao je p\u016fvodn\u00ed plocha pr\u016f\u0159ezu).<\/p>\n\n

Silov\u00e9 nam\u00e1h\u00e1n\u00ed je p\u0159idru\u017een\u00e1 vlastnost, kter\u00e1 definuje odpor, kter\u00fd zabra\u0148uje tomu, aby se materi\u00e1l p\u0159i ur\u010dit\u00e9m nam\u00e1h\u00e1n\u00ed rozkmital. Tento bod t\u00fdkaj\u00edc\u00ed se meze kluzu je p\u0159echodovou oblast\u00ed. To znamen\u00e1, \u017ee po odstran\u011bn\u00ed p\u0159ilo\u017een\u00e9ho nap\u011bt\u00ed ji\u017e materi\u00e1l nez\u016fst\u00e1v\u00e1 v pru\u017en\u00e9m stavu.<\/p>\n\n

\"graf
Graf zkou\u0161ky pevnosti v tahu<\/figcaption><\/figure>\n\n

Zdlouhav\u00e9 p\u0159ehledy pevnosti \u010dasto zahrnuj\u00ed dal\u0161\u00ed ozna\u010den\u00ed, v\u010detn\u011b pevnosti v lomu, pevnosti p\u0159i p\u0159etr\u017een\u00ed a nap\u011bt\u00ed p\u0159i lomu, co\u017e jsou alternativn\u00ed n\u00e1zvy pro jednotku nap\u011bt\u00ed, p\u0159i n\u00ed\u017e se t\u011bleso rozlom\u00ed na dva r\u016fzn\u00e9 fragmenty.<\/p>\n\n

Znalost t\u011bchto vlastnost\u00ed je pro stroj\u00edrensk\u00e9 a pr\u016fmyslov\u00e9 d\u00edly nezbytn\u00e1. Ty mus\u00ed b\u011bhem sv\u00e9 \u017eivotnosti sn\u00e1\u0161et o\u010dek\u00e1van\u00e9 nam\u00e1h\u00e1n\u00ed. Vlastnosti jsou tak\u00e9 kl\u00ed\u010dov\u00e9 pro v\u00fdb\u011br materi\u00e1l\u016f s ohledem na bezpe\u010dnost, v\u00fdkon a prom\u011bnliv\u00e9 podm\u00ednky. Nap\u0159\u00edklad teplota m\u016f\u017ee ovlivnit pevnost materi\u00e1l\u016f v tahu, jako je m\u011b\u010f.<\/p>\n\n

D\u016fkladn\u00e9 srovn\u00e1n\u00ed meze kluzu a pevnosti v tahu<\/strong><\/h2>\n\n
\"Jak
Jak zjistit mez kluzu?<\/figcaption><\/figure>\n\n

Vysv\u011btlen\u00ed meze pru\u017enosti jemnosti a ta\u017enosti nap\u011bt\u00ed<\/h3>\n\n

Mez kluzu ud\u00e1v\u00e1 nap\u011bt\u00ed, kter\u00e9 je nutn\u00e9 pro plastickou deformaci. Pevnost v tahu v\u0161ak ur\u010duje \u00farove\u0148 nap\u011bt\u00ed, p\u0159i kter\u00e9 s\u00edla zp\u016fsob\u00ed poru\u0161en\u00ed materi\u00e1lu. Mez kluzu je v\u00fdznamn\u00e1 u materi\u00e1l\u016f, kter\u00e9 se deformuj\u00ed (ohybem nebo smykem), jako jsou tv\u00e1rn\u00e9 materi\u00e1ly. Naproti tomu pevnost v tahu je z\u00e1sadn\u00ed vlastnost\u00ed u k\u0159ehk\u00fdch materi\u00e1l\u016f, kter\u00e9 se velmi snadno l\u00e1mou.<\/p>\n\n

Deforma\u010dn\u00ed a zku\u0161ebn\u00ed proces<\/h3>\n\n

Za prv\u00e9, p\u0159ekro\u010den\u00ed meze kluzu makroskopick\u00fdch materi\u00e1l\u016f spou\u0161t\u00ed proces jejich deformace. Pot\u00e9 prob\u00edhaj\u00ed zkou\u0161ky pevnosti v tahu, kter\u00e9 zahrnuj\u00ed deformaci. V p\u0159\u00edpad\u011b k\u0159ehk\u00fdch materi\u00e1l\u016f lze pevnost v tahu pova\u017eovat za mez kluzu a je do zna\u010dn\u00e9 m\u00edry spojena s malou deformac\u00ed.<\/p>\n\n

\u00davahy o materi\u00e1lech p\u0159i navrhov\u00e1n\u00ed<\/h3>\n\n

Spolehlivosti p\u0159i konstrukci konstrukc\u00ed z materi\u00e1l\u016f, kter\u00e9 podl\u00e9haj\u00ed poddajnosti, se dosahuje up\u0159ednostn\u011bn\u00edm deformace v tahu p\u0159ed deformaci v kluzu. Tato vlastnost z nich \u010din\u00ed pevn\u00e9 a tv\u00e1rn\u00e9 materi\u00e1ly, kter\u00e9 je mo\u017en\u00e9 deformovat relativn\u011b velkou silou, ne\u017e dos\u00e1hnou sv\u00e9 pevnosti v tahu. Pokud jde o k\u0159ehk\u00e9 materi\u00e1ly, je hlavn\u00edm faktorem „pevnost v tahu“.<\/p>\n\n

Anal\u00fdza nam\u00e1h\u00e1n\u00ed p\u0159i navrhov\u00e1n\u00ed<\/h3>\n\n

Na rozd\u00edl od pevnosti v tahu, kter\u00e1 je jednoos\u00e1 a zkoum\u00e1 pouze jednoos\u00e9 zat\u00ed\u017een\u00ed, se pevnost v tahu studuje pro r\u016fzn\u00e9 nap\u011b\u0165ov\u00e9 stavy ve v\u00edce os\u00e1ch. Jakmile materi\u00e1ly p\u0159ekro\u010d\u00ed mez kluzu, deformuj\u00ed se, dokud nedos\u00e1hnou pevnosti v tahu, kter\u00e1 za\u010d\u00edn\u00e1 p\u0159i vy\u0161\u0161\u00ed \u010d\u00edseln\u00e9 hodnot\u011b.<\/p>\n\n

P\u0159esnost m\u011b\u0159en\u00ed<\/h3>\n\n

Pevnost v tahu je u v\u011bt\u0161iny materi\u00e1l\u016f v\u010detn\u011b oceli n\u00e1chyln\u00e1 k nep\u0159esn\u00fdm p\u0159edpov\u011bd\u00edm. Na druhou stranu, m\u00edsto toho, aby se pevnost v tahu op\u011bt obt\u00ed\u017en\u011b odhadovala, lze u materi\u00e1l\u016f, jako je ocel, pevnost v tahu p\u0159esn\u011b vypo\u010d\u00edtat. Je nutn\u00e9 zn\u00e1t rozd\u00edly mezi siln\u00fdmi a slab\u00fdmi vlastnostmi. Jejich rozli\u0161ov\u00e1n\u00ed je v\u0161ak prvo\u0159ad\u00e9 kv\u016fli praktick\u00fdm v\u00fdhod\u00e1m.<\/p>\n\n

Jak vybrat ide\u00e1ln\u00ed materi\u00e1l pro pot\u0159eby va\u0161eho projektu\uff1f<\/h2>\n\n

P\u0159i rozhodov\u00e1n\u00ed o v\u00fdb\u011bru vhodn\u00e9ho materi\u00e1lu pro v\u00e1\u0161 projekt je t\u0159eba vz\u00edt v \u00favahu faktory meze kluzu a pevnosti v tahu. Tyto ukazatele ukazuj\u00ed, jak materi\u00e1l reaguje na tah. Ur\u010den\u00ed toho, kdy a jak tyto ukazatele pou\u017e\u00edt, ovliv\u0148uje bezpe\u010dnost projektu a jeho \u00fasp\u011b\u0161n\u00fd v\u00fdsledek. N\u011bkdy je nutn\u00e9 zv\u00e1\u017eit i mez pevnosti v tahu a mez kluzu.<\/p>\n\n

Posouzen\u00ed mezn\u00edch hodnot nap\u011bt\u00ed materi\u00e1lu<\/h3>\n\n

Tuto informaci byste m\u011bli zn\u00e1t, proto\u017ee ud\u00e1v\u00e1, jakou m\u00edru nam\u00e1h\u00e1n\u00ed materi\u00e1l vydr\u017e\u00ed, ne\u017e se zdeformuje nebo zlom\u00ed. V takov\u00e9m prost\u0159ed\u00ed, kde m\u016f\u017ee b\u00fdt minim\u00e1ln\u00ed a\u017e m\u00edrn\u00e9 nam\u00e1h\u00e1n\u00ed, lze pou\u017e\u00edt materi\u00e1ly s ni\u017e\u0161\u00ed pevnost\u00ed v tahu a mez\u00ed kluzu. U t\u011bchto projekt\u016f je nejd\u016fle\u017eit\u011bj\u0161\u00ed vhodnost materi\u00e1lu, aby vydr\u017eel nejv\u011bt\u0161\u00ed zat\u00ed\u017een\u00ed a extr\u00e9mn\u00ed nam\u00e1h\u00e1n\u00ed. V d\u016fsledku toho by pevnost tohoto materi\u00e1lu m\u011bla p\u0159evy\u0161ovat pevnost p\u016fsob\u00edc\u00edch sil prost\u0159ed\u00ed.<\/p>\n\n

Vyv\u00e1\u017een\u00ed vlastnost\u00ed materi\u00e1lu<\/h3>\n\n

V\u00fdb\u011br vhodn\u00e9ho materi\u00e1lu je pro ka\u017ed\u00fd projekt kl\u00ed\u010dov\u00fd. Mezi nimi je t\u0159eba db\u00e1t na vyv\u00e1\u017eenost meze kluzu, pevnosti v tahu a dal\u0161\u00edch detail\u016f. Tato volba ovliv\u0148uje \u017eivotaschopnost syst\u00e9mu, kter\u00e1 se projevuje v bezpe\u010dnosti a spolehlivosti. M\u016f\u017ee doch\u00e1zet k prol\u00edn\u00e1n\u00ed vlivu t\u011bchto vlastnost\u00ed na chov\u00e1n\u00ed materi\u00e1l\u016f. Znalost t\u011bchto korelac\u00ed proto hraje v\u00fdznamnou roli.<\/p>\n\n

V\u00fdb\u011br materi\u00e1l\u016f podle pot\u0159eb aplikace.<\/h3>\n\n

Na za\u010d\u00e1tku v\u00fdb\u011bru materi\u00e1lu je podrobn\u00e1 anal\u00fdza c\u00edl\u016f projektu. V \u00favahu je t\u0159eba vz\u00edt hmotnost, teplotu a odolnost proti korozi. Slad\u011bn\u00ed s pevnost\u00ed materi\u00e1lu v\u016f\u010di o\u010dek\u00e1van\u00e9mu nam\u00e1h\u00e1n\u00ed je z\u00e1sadn\u00edm faktorem pro ur\u010den\u00ed optim\u00e1ln\u00edho v\u00fdkonu materi\u00e1lu.<\/p>\n\n

Faktory ovliv\u0148uj\u00edc\u00ed v\u00fdb\u011br materi\u00e1lu<\/h3>\n\n

P\u0159i v\u00fdb\u011bru materi\u00e1l\u016f berte v \u00favahu r\u016fzn\u00e9 faktory. V\u00fdb\u011br materi\u00e1l\u016f m\u016f\u017ee b\u00fdt podm\u00edn\u011bn n\u00e1klady, dostupnost\u00ed a mo\u017enost\u00ed obr\u00e1b\u011bn\u00ed Dal\u0161\u00edm aspektem, kter\u00fd je t\u0159eba vz\u00edt v \u00favahu, jsou environment\u00e1ln\u00ed charakteristiky m\u00edsta, kde hodl\u00e1te technologii pou\u017e\u00edvat.<\/p>\n\n

Pevnosti v tahu a v kluzu b\u011b\u017en\u00fdch slitin<\/h2>\n\n
Materi\u00e1l<\/td>Pevnost v tahu<\/td>Maxim\u00e1ln\u00ed s\u00edla<\/td><\/tr>
Imperial (ksi)<\/td>Metrick\u00e9 (MPa)<\/td>Imperial (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>
Berylium<\/td>35<\/td>50<\/td>240<\/td>345<\/td>45<\/td>51<\/td>310<\/td>370<\/td><\/tr>
Beryliov\u00e1 m\u011b\u010f<\/td>140<\/td>175<\/td>965<\/td>1205<\/td>59<\/td>203<\/td>410<\/td>1480<\/td><\/tr>
Mosaz (60\/40)<\/td>21<\/td>50<\/td>145<\/td>345<\/td>53<\/td>70<\/td>370<\/td>485<\/td><\/tr>
Mosaz (\u017elut\u00e1)<\/td>15<\/td>61<\/td>105<\/td>425<\/td>47<\/td>91<\/td>325<\/td>625<\/td><\/tr>
Mosaz (\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>
Litina (\u0161ed\u00e1)<\/td>14<\/td>40<\/td>98<\/td>276<\/td>22<\/td>63<\/td>140<\/td>431<\/td><\/tr>
Chrom<\/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>
M\u011b\u010f<\/td>10<\/td>10<\/td>70<\/td>70<\/td>33<\/td>55<\/td>230<\/td>380<\/td><\/tr>
Zlato (24K) \u010dist\u00e9<\/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 (lit\u00e9)<\/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>
Olovo<\/td>0.72<\/td>2<\/td>5<\/td>19<\/td>1.7<\/td>4.6<\/td>12<\/td>32<\/td><\/tr>
Slitina ho\u0159\u010d\u00edku<\/td>2.9<\/td>23<\/td>20<\/td>160<\/td>15<\/td>25<\/td>20<\/td>280<\/td><\/tr>
Nikl<\/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>
Ocel (uhl\u00edkov\u00e1)<\/td>35<\/td>100<\/td>248<\/td>690<\/td>49<\/td>276<\/td>340<\/td>1900<\/td><\/tr>
Nerezov\u00e1 ocel (304)<\/td>14<\/td>14<\/td>97<\/td>97<\/td>67<\/td>160<\/td>460<\/td>1100<\/td><\/tr>
Nerezov\u00e1 ocel (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>
Titan<\/td>14<\/td>14<\/td>98<\/td>98<\/td>33<\/td>67<\/td>230<\/td>460<\/td><\/tr>
Wolfram<\/td>80<\/td>80<\/td>550<\/td>550<\/td>100<\/td>500<\/td>689<\/td>3447<\/td><\/tr>
Zinek<\/td><\/td><\/td><\/td><\/td>20<\/td>21<\/td>135<\/td>145<\/td><\/tr>
(Zdroj tabulky: https:\/\/www.engineeringtoolbox.com\/young-modulus-d_417.html<\/zna><\/a>)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

Z\u00e1v\u011br<\/strong><\/h2>\n\n

V\u00fdb\u011br spr\u00e1vn\u00e9ho materi\u00e1lu zahrnuje hlubokou znalost meze kluzu a pevnosti v tahu. Tyto znalosti zajist\u00ed, \u017ee v\u00e1\u0161 projekt odol\u00e1 v\u0161em provozn\u00edm zat\u00ed\u017een\u00edm, \u010d\u00edm\u017e se zv\u00fd\u0161\u00ed jeho trvanlivost a v\u00fdkonnost.<\/p>\n\n

Spolupracujte s n\u00e1mi a z\u00edskejte odborn\u00e9 poradenstv\u00ed p\u0159i v\u00fdb\u011bru materi\u00e1lu, abyste optimalizovali v\u00fdkon a bezpe\u010dnost va\u0161eho projektu. Poj\u010fme spole\u010dn\u011b budovat \u00fasp\u011bch!<\/p>\n","protected":false},"excerpt":{"rendered":"

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