Modulus Young ndi thupi tanthauzo lake chachikulu

The modulus wa kotenga elasticity wa nkhani ya zomangamanga, kapena modulus Young otchedwa wambiri thupi limene amadziwika chuma cha chuma, kupereka kukana kwawo kwa mapindikidwe, zinthu malangizo kotenga.

The chizindikiro amadziwika kuuma zakuthupi konkire.

dzina za gawo limafanana ndi dzina la Thomas Young - wotchuka British wasayansi wasayansi amene anaphunzira njira ya psinjika ndi kukula kwa zipangizo olimba. Zimenezi zikusonyezedwa ndi phindu thupi la chilembo Latin modulus E. Young amayezedwa Pascals.

modulus chizindikiro Young kapena modulus wa elasticity kotenga ntchito kuwerengetsera osiyanasiyana pa zipangizo mayeso pa mlingo mapindikidwe, kwamakokedwe compressive ndi flexural.

Ine ndiyenera kunena kuti ambiri mwa ntchito zipangizo yomanga achilendo chithunzi cha modulus Young mokwanira lalikulu, amene nthawi zambiri a dongosolo la September ¹⁰ Pa. Choncho, "giga" (GPa) ntchito kuphatikana kangapo mayiko mawerengedwe ndi kujambula.

M'munsimu muli zizindikiro za modulus Young ena zipangizo zomangamanga, omwe kawirikawiri ntchito zosiyanasiyana zolinga zothandiza. Ndi pa mphamvu ya katundu zimadalira durability nyumba yomanga ndi zinthu zina.

Malinga ndi gome, mlingo pazipita gawo ali chitsulo, ndi osachepera - mtengo.

Mawonekedwe mtima wa modulus Young ndi zotheka kugwiritsa ntchito yapadera nkhawa chithunzi Zimenezi zikusonyeza pamapindikira akamagwira wina ndi nkhani yofanana kwa kwake mu Atafunsidwa kambirimbiri.

Pankhaniyi, tanthauzo thupi la modulus Young ndi kupeza chibwenzi masamu pampanipani wachibadwa lolingana magawo kupsyinjika pa gawo ena a tchati kuti makamaka anakonzeratu njila malire σ _mi.

Mu masamu akuti modulus Young motere: E = σ / ε = tgα

Tiyeneranso kuti modulus ya Young ndi chinthu cha Kugwirizana chikunena masamu a chilamulo Hooke yomwe ili: σ = Eε

Choncho, kugwirizana kwa kotenga elasticity modulus anayeza makhalidwe ndi mtanda zigawo zipangizo nawo mayeso stiffness, anafotokoza ntchito magawo monga EA ndi E1.
EA - muyeso wa stiffness kwamakokedwe, chuma compressive mu gawo mtanda wake, komwe A - mtengo wa ndodo m'dera mtanda yachigawo.

E1 - ndi muyezo wa chinthu chimodzimodzi flexural kwa nkhani gawo ake mtanda, momwe 1 - kufunika kwa ofananira mphindi inertia, lomwe likutuluka yachigawo ipytyvaemogo zakuthupi.

Choncho, modulus ya Young - ndi chizindikiro chilengedwe, chomwe chimathandiza zipani zingapo nalo katundu structural zakuthupi.