1. Goho poindi
Kana iyo simbi kana sampu yakatambanudzwa, kana kushushikana kunopfuura iyo elastic muganho, kunyangwe kushushikana kusingawedzere, simbi kana sampu inoramba ichienda pachena epurasitiki deformation, iyo inonzi kubereka, uye kushoma kushushikana kukosha kana chiitiko chekubereka chikaitika. ndeyechipo chegoho.Rega Ps ive simba rekunze panzvimbo yegoho s, uye Fo ive nzvimbo yakachinjika yemuenzaniso, ipapo goho poindi σs = Ps/Fo (MPa)..
2. Kupa simba
Nzvimbo yegoho yezvimwe zvinhu zvesimbi haina kunyanya kuoneka uye inonetsa kuyera.Nokudaro, kuitira kuyera maitiro ezvibereko zvezvinhu, kushushikana apo chigarire chakasara chepurasitiki deformation yakaenzana nehumwe kukosha (kazhinji 0.2% yehurefu hwepakutanga) inotsanangurwa.isimba regoho rine zvimiso kana kungoburitsa simba σ0.2.
3. Kusimba simba
Iyo yakanyanya kudzvinyirira kukosha yakasvika nezvinhu panguva yekutambanudza nzira, kubva pakatanga kusvika pakuputsika.Inoratidza kugona kwesimbi kuramba kutyoka.Zvichienderana nekusimba kwesimba, kune simba rekumanikidza, simba rekuchinja, etc. Rega Pb ive iyo yakanyanya kusimba simba rinowanikwa zvinhu zvisati zvabviswa.
simba, Fo ndiyo mhiri-chikamu nzvimbo yemuenzaniso, ipapo simba rekusimba σb = Pb/Fo (MPa).
4. Kurebesa
Mushure mekunge chinhu chatyoka, chikamu chehurefu hwehurefu hwepurasitiki kusvika paurefu hwesample yepakutanga hunodaidzwa kuti elongation kana kurebesa.
5. Goho simba reshiyo
Huyero hwegoho (goho simba) resimbi kusvika pakusimba kunodaidzwa kuti goho-simba reshiyo.Iyo yakakura chiyero chegoho, iyo yakakwirira kuvimbika kwezvikamu zvemaitiro.Kazhinji, iyo yegoho reshiyo yekabhoni simbi ndeye 06-0.65, uye yakaderera alloy structural simbi ndeye 065-0.75, uye alloy structural simbi ndeye 0.84-0.86.
6. Kuoma
Kuomarara kunoratidza kugona kwechinhu kuramba kudzvanyirirwa kwechinhu chakaoma mukati maro.Icho chimwe chezviratidzo zvakakosha zvekushanda kwezvinhu zvesimbi.Kazhinji, iyo yakakwirira kuoma, zviri nani kupfeka kuramba.Anowanzo shandiswa kuomarara zviratidzo zvinoti Brinell kuomarara, Rockwell kuomarara uye Vickers kuoma.
Nguva yekutumira: Jul-20-2022