Tuatahi, me titiro tātou ki ngā tīwiri potae me ā rātou mahi. Ko ngā tīwiri potae e pā ana ki ngā tīwiri e tāutahia ana ki te pokapū wira, e hono ana i te wira, te kōpae pēki (pahu pēki) me te pokapū wira. Ko tana mahi he hono pono i ngā wira, ngā kōpae pēki (pahu pēki) me ngā pokapū. E mōhio ana tātou katoa, ko te taumaha o te motuka ka pikaua e ngā wira, nō reira ko te hononga i waenga i ngā wira me te tinana ka tutuki mā roto i ēnei tīwiri. Nō reira, ko ēnei tīwiri potae ka pikaua te taumaha o te motuka katoa, ā, ka tukuna hoki te putanga taipana mai i te pouaka miihini ki ngā wira, e pāngia ana e te mahi takirua o te kume me te kaha kutikuti i te wā kotahi.
He tino māmā te hanganga o te tīwiri potae, he mea tito mai i te tīwiri, te nati me te horoi. E ai ki ngā hanganga tīwiri rerekē, ka taea hoki te wehewehe ki ngā pūtu upoko kotahi me ngā pūtu upoko rua. Ko te nuinga o ngā motuka o nāianei he pūtu upoko kotahi, ā, ko ngā pūtu titi e whakamahia whānuitia ana mō ngā taraka iti me ngā taraka reo-rahi. E rua ngā tikanga tāutanga mō ngā pūtu upoko kotahi. Ko tētahi ko te pūtu pokapū + nati. Ka mau te pūtu ki te pokapū me te taunga pokanoa, kātahi ka mau te wira ki te nati. Ko te nuinga o ngā motuka Hapanihi me Kōrea e whakamahia whānuitia ana, ā, ko te nuinga o ngā taraka e whakamahi ana i tēnei ara. Ko te painga o tēnei tikanga he ngāwari ake te kimi i te wira, he ngāwari ake te wetewete me te huihui o te wira, ā, he teitei ake te haumaru. Ko te ngoikoretanga he uaua ake te whakakapi i ngā tīwiri potae, ā, me wetewete ētahi i te pokapū wira; Ka wiri tika te tīwiri potae ki te pokapū wira, e whakamahia whānuitia ana i roto i ngā motuka iti o Ūropi me Amerika. Ko te painga o tēnei tikanga he ngāwari ake te wetewete me te whakakapi i ngā tīwiri potae. Ko te ngoikoretanga he paku kino ake te haumaru. Ki te wetewetehia, ka tāutahia hoki ngā tīwiri o ngā potae, ka pakaru ngā miro o te pū, nō reira me whakakapi te pū.
Ko ngā tīwiri potae motuka he mea hanga i te maitai kaha-teitei. Ko te tohu kaha o te tīwiri kei runga i te pane o te tīwiri potae. E 8.8, 10.9, me te 12.9. Ko te nui ake o te uara, ko te teitei ake o te kaha. I konei, ko te 8.8, 10.9, me te 12.9 e pā ana ki te tapanga tohu mahi o te pūtu, e rua ngā tau, e tohu ana i te uara kaha kume me te ōwehenga hua o te rauemi pūtu, e whakaatuhia ana e te "XY", pērā i te 4.8, 8.8, 10.9, 12.9 me ētahi atu. Ko te kaha kume o ngā pūtu me te tohu mahi 8.8 he 800MPa, ko te ōwehenga hua he 0.8, ā, ko te kaha hua he 800×0.8=640MPa; Ko te kaha kume o ngā pūtu me te tohu mahi 10.9 he 1000MPa, ko te ōwehenga hua he 0.9, ā, ko te kaha hua he 1000×0.9= 900MPa
Ētahi atu me ērā atu. Ko te kaha o te 8.8 me runga ake, ko te rauemi o te pūtu he rino koranu waro iti, he rino waro waenga rānei, ā, ko te maimoatanga wera ka kiia he pūtu kaha teitei. Ko ngā tīwiri potae o te motuka he pūtu kaha teitei katoa. He rerekē te kaha o te pūtu o ngā tauira me ngā kawenga rerekē. Ko te 10.9 te mea tino noa, ko te 8.8 te mea e ōrite ana ki ngā tauira iti ake, ā, ko te 12.9 te mea e ōrite ana ki ngā taraka taumaha. He pai ake.
Wā tuku: Mei-20-2022