Modulus o elasticity o ka pōhaku puna: mea ia ua, a pehea e hoakaka?

A he nui na kanaka i hoihoi i loko pehea e ho ololi i ka manao o kela pōhaku puna ikaika a me ka hopena e haawe. Pōhaku puna mea he paa kino ka i ka welelau o ka oukou pale ana i deformation ka wā paku ole ia i mawaho koa. He ka hiki i ka laholio deformation (? Aiaiiuie ano) Hōʻike 'o ka pōhaku puna modulus o elasticity.

I ka nui o ka elasticity i manao ia ma kekahi hāpana ho'āʻo no ka ia'ku i ka hoʻopilikia 'ole mīkini'opihia. Eia naʻe, e makaala i ka pōhaku puna, a 'aʻole i pihaʻi kilo, tensile lolelua. Ma muli o ka hoao ana hualoaʻaʻimi hala ia i ka pukaʻana ke kanana nei o ka noi ia mea a hiki i ka ho'āʻo pono. ʻike pono ka poʻea pau i ka hoomaopopo maikaʻi aʻe. Ua mea no hoi e pono ke ike i ka loiloi mua modulus o elasticity o ka pōhaku puna, a me ka nui o ka deformation.

Ma lalo o haawe, deformation mea ulu aie i ka mea i pōhaku puna i ka waiwai e like me kolo ana. Mua, ma lalo o ka kekahi puʻe, malaila ia lŘlŘ laholio deformation. He He kŰia ma i ke kino ua ino ma ka haawe hoike i kona palapala ano ma hope o kona nalowale. A laila, i ka wa hou haawe ana i loko o ka mea hoʻomaka 'ana e hiki, irreversible (ea) deformation. Eia naʻe, puunaue ea a me ka laholio loli paʻakikī loa. No ka mea, o ka instantaneous loli i loko o ke kinona hilinaʻi nui ma luna o ka mämä holo o ka haawe hooulu. No ka mea, o keia deformation i ka haawe mea ulu ua kapaia laholio, a me ka hou mahuahua ma deformities - ea. He aie i ke kolo ana o ka pōhaku puna. E möakäka hou deformation mea mua o ka make ana o ka mea. Kēia modulus o elasticity o ka pōhaku puna ua pinepine i kapa modulus o deformation. Ua Ua nānā 'ka hoʻohana' ana i kekahi mau 'ana i kūpono.

Modulus o elasticity o ka pōhaku puna me ka nānā 'ana i ka loiloi mua loa paʻakikī. Eia naʻe, kona He kokekau wale cia hiki ke waiho kahiko o ka'āina. He nui nńnń secant laina a hiki i ka hālawa, hōʻikeʻana i ke kaukaʻi o ka stress-ke kanana nei, loa pinepine, aole nae i manawa, ia laua i ka tangent, a hele ma ka ho omaka ana.

KŘpa a ua malama pono wau i ka assertion i ka pōhaku puna modulus o elasticity maoli ma ka pololei e like me ke kumu o kona ikaika. Naʻe, i kēia mea oiaio wale no ka nui loa o ka pakuhi (stress-ke kanana nei) a me ka hilinaʻi nui ma luna o ka papa, a me ka hoao ana. Me lakou i mea hoike, i keʻano o ka wai-paʻa kūhohonu loaʻia ma ka hōʻike i ka oi aku modulus o elasticity inideka ma mua o maloo Eia kekahi laʻana. 'Oiai lākou ikaika waiwai i like.

Ma ka modulus o elasticity nui maikaʻiʻole i ka pono o ka lohi loa hoʻopiha. Kēia kaukaʻi He rectilinear. Maoli ai, i ke kii o Lightweight pōhaku puna e e haʻahaʻa ma mua o kaumaha Eia kekahi laʻana. Ke elasticity kekahi maoli me ka makahiki o ka pono hana. No ka laʻana, ka modulus o elasticity o ka pōhaku puna B25, e e oi hoʻokahi makahiki ma mua o ka mea, ua initially, akā, ma hope o 10 makahiki ia e ulu nui. E hoʻoholo i nā mea kiko'î o ka elasticity he mea he kūikawā papaʻaina, a hōʻike mai i ka He kokekau wale loiloi mua modulus o ka mea o kēlā me kēia momoku ahi.