Neart teannas Rubber Deiridh (UTS), giorraithe go minic go neart teanga (TS) n¨® neart deiridh, is ¨¦ an strus uasta ar f¨¦idir le h¨¢bhar rubair a sheasamh agus ¨¦ ¨¢ sh¨ªneadh n¨® ¨¢ tharraingt sula dteipfidh s¨¦ n¨® a bhriseadh. An strus uasta a rinne vulcanized rubair thermoset agus elastomers thermoplastic seasamh (neart), sular theip air, is ¨¦ an neart teannta deiridh.
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T¨¢st¨¢lacha Rubber Tensile a ¨²s¨¢idtear chun c¨¢il¨ªocht t¨¢irge rubair a rial¨², agus chun ¨¦ifeacht a bhaineann le nochtadh ceimiceach n¨® teirmeach a chinneadh ar elastomer. Is ¨¦ a choinne¨¢il air¨ªonna fisici¨²la an elastomera at¨¢ is suntasa¨ª, seachas luachanna ioml¨¢na an neart teannta, an fhadaithe n¨® an mhod¨²il.
Tomhas Neart Tensile Rubber: Sainmh¨ªn¨ªtear neart Tensile
mar strus a thomhaistear mar fh¨®rsa in aghaidh an limist¨¦ar aonaid. De ghn¨¢th, is ¨¦ard at¨¢ i gceist leis an t¨¢st¨¢il sampla beag a th¨®g¨¢il le limist¨¦ar trasghearradh seasta, agus ansin ¨¦ a tharraingt le tensometer ag br¨² lean¨²nach (athr¨² ar fhad tomhsaire roinnte de r¨¦ir fad tomhsaire tosaigh) r¨¢ta go dt¨ª go briseann an sampla.
T¨¢ tr¨ª chine¨¢l tipici¨²il neart teannta ann:
neart fuarthas - Is f¨¦idir leis an strus ¨¢bhar a sheasamh gan d¨ªfhoirmi¨² buan. N¨ª pointe sainithe g¨¦ar ¨¦ seo. Is ¨¦ neart t¨®g¨¢la an strus a chuirfidh d¨ªfhoirmi¨² buan de 0.2 {65978042ddab827e24d1208ef74. 0965169b89304a6a90a044c13af4b9daa7701} den ghn¨¦ bhunaidh.
Neart deiridh - Is f¨¦idir leis an strus uasta ¨¢bhar a sheasamh.
neart Briseadh - An strus comhorda¨ª ar an strus-strain cuar ag an bpointe r¨¦ab.
D¨¦antar neart teannta (ASTM D412-98a) ¨¢bhar a chinneadh ag baint ¨²s¨¢ide as ceann de dh¨¢ mhodh t¨¢st¨¢la, nach dt¨¢irgeann tortha¨ª comhionanna i gc¨®na¨ª:
Modh T¨¢st¨¢la A:
Dhroinn Dumbbell agus D¨ªreach Sonra¨ª - t¨¢ na eiseamail t¨¢st¨¢la instealladh m¨²nlaithe n¨® gearradh ¨® bhileog comhr¨¦idh nach l¨² n¨¢ 1. 3mm (0.05 orlach) n¨¢ n¨ªos m¨® n¨¢ 3.3 mm (0.13 orlach).
Modh T¨¢st¨¢la B:
Specimens F¨¢inne Gearrtha - eiseamail t¨¢st¨¢la a th¨¢irgtear tr¨ª ghearradh f¨¢inn¨ª ¨® bhileoga n¨® fead¨¢n. Sa d¨¢ ch¨¢s sainmh¨ªn¨ªtear tois¨ª, srl. ag sonra¨ªochta¨ª ASTM.
Neart Tensile a r¨ªomh
TS a r¨ªomh le haghaidh ¨¢bhar i gcr¨ªch ag ¨²s¨¢id:
TS = F (BE) / A)
i gc¨¢s:
TS = neart teanga, an strus ag r¨¦abadh, MPa (lbf / i. 2)
F (BE) = an m¨¦id f¨®rsa ag r¨¦abadh, MN (lbf)
A = limist¨¦ar tras-alt de shampla neamhsrianta, M2 (in.2)
