Standard Test Yam khoom:
Tensile stress, tensile strength, breaking strength, elongation at break, stress at the constant elongation, elongation at tas li stress, force at tas li stress, tear strength, force at any point, elongation at any point, rub-tawm quab yuam, nplaum quab yuam thiab ncov tus nqi suav, kev ntsuas siab, shearpuncture quab yuam 1 rub tawm, test,
Cov khoom kuaj tshwj xeeb:
1. Elastic modulus (Young's modulus): Qhov piv ntawm cov kev ntxhov siab ib txwm muaj rau cov kab mob ib txwm muaj nyob rau tib theem. Nws yog ib qho coefficient rau kev txiav txim siab nruj ntawm cov khoom; tus nqi siab dua, cov khoom muaj zog thiab tougher.
2. Kev txwv tsis pub muaj: Qhov siab tshaj plaws ntawm kev thauj khoom thiab elongation tswj kev sib raug zoo nyob rau hauv ib qho kev txwv yog hu ua proportional limit.
3. Elastic txwv: Qhov siab tshaj plaws ntawm cov khoom siv tuaj yeem tiv taus yam tsis muaj deformation mus tas li.
4. Elastic deformation: Lub deformation ntawm cov khoom ploj lawm tom qab lub load raug tshem tawm.
5. Permanent deformation: Lub deformation uas tseem nyob hauv cov khoom tom qab lub load raug tshem tawm.
6. Yield Point: Thaum cov khoom siv tau ncab, qhov deformation nce sai heev thaum qhov kev ntxhov siab nyob twj ywm; qhov point no hu ua yield point. Muaj cov ntsiab lus sab sauv thiab qis qis, nrog rau cov ntsiab lus sab sauv feem ntau suav tias yog thawj qhov taw qhia tawm los. Yield: Thaum lub load tshaj qhov proportional txwv, lub elongation tsis proportional lawm; lub load poob sai sai, tom qab ntawd hloov mus rau lub sijhawm, nrog kev hloov pauv loj hauv elongation. Qhov tshwm sim no hu ua yielding.
7. Yield Strength: Cov quotient tau los ntawm kev faib cov load ntawm qhov chaw mus tas li elongation ncav cuag tus nqi teev nyob rau hauv nro los ntawm tus qub ntoo khaub lig-sectional cheeb tsam ntawm lub parallel seem.
8. Caij nplooj ntoos hlav tus nqi (K): Qhov sib piv ntawm cov khoom ntawm lub zog nyob rau hauv theem nrog rau deformation rau lub deformation.