复杂荷载作用下短腐蚀管道的数值仿真研究

复杂荷载作用下短腐蚀管道的数值仿真研究 复杂荷载作用下短腐蚀管道的数值仿真研 究 K?????6??????????????waa??wawats???????N ?i?Q???????e?4???????????????E???f?F??????- (1wK?X???(???X?????????4?????)?????X??116024 ?=???8?x 2wK?X???????????F?????0???????M?????X??116000) ?????x?g?????e???E???f???F???????)???????????????e?i?Q???????e?4???0???????X ?0?????(???}???)?????????????e?i?Q?? ?????e?4?????????4?????F???)???w?????????????????????'??wa?????????????????? wK????????wK???????????????s???i?)?????_ ???4?????????????_???}?y?????D?1????????wa???????M?)???????????????????'??? X?y?i???M?????u??????wK???k?????N?????' ?0?-?????0??wa?)?????x???w???????????????i?)?4????????wa ???9???x?????S?????S?i?Q???'?S?n?????(?S?????????????? ?l?? ?n???????4???????i?Q?)?u?????I???f?? ??wa?????????M?M?????????A?u???????)???????ywa ???????????????????????y???2?????????)?n?x ?????_???)?l?????????y????wa?u??wa???????w?? ???????????????N???????????????????????)?? ?N?????0???????3???i??????????????????wa ?F?????M?)?????_?????????????b?F???A?_ ?????l???????????u?????????????n???A???)?? ?????????????e?4???????????}???????????? ?????w????wK???k?????N??i???????d???????A ?x?????6???e??????wa?????????N?????????e?4?) Miyazaki?????e?????????)?F?????c?H???????? ?O?????e?N?????????e?4???????_??????wa???? ?M??????r?????????e???????N?????6???e?4?? ??IF??????I?j?????{???X?0?????F??wa???????? ??wK???k?????N?????x?????6???e?4?x?????d?( ?AwK???????i?????u?????????y???_??wa?g?????e ???E???f?F???????)?????????????????e????wK?? ?????N?????????6???e?4??7????????X?(???} ???)?????????????0?????????)?F?????_?????(?? ??????????wa????r?????????)???????????????? ?i?Q???????e?4???????????????????????????? ??????wa????????????i????????????wa l?????????0?????(?? 1?M1?0?????}?? ?g???0????????????????API-5L-x60?)?? ????PSL2?)????????????Iwa ?????????)???????????X????????15?i???M ?????????????????????????(?t???????y?)???? ?????i??wa?g??????????????486mmwa?n?????? ???????????0?????X?)????????1?)4?????}???? ???????M??Jfj20???????????????????M?e?????d ?R???????k?R???????e?????K???R?????????? ??wa???????2?????????o???????4?????????????) ?????????}????????????????????????wa?)j?A?)?X ???F?????M?x?????????????????????????i???? ?A?????????x?????M?g?????e?????X?i?????A???? ???y?}??wal?????M?????y??????I}|???????)?e?} ?????????????5?s?????r?????s?(wa?{??Wa?? ??OO 700 600 ?x500 ?? 7?00 ??300 ??200 100 O ??1APIX60?????y?f?????????????? tefloo?X?????F???????)Ramberg-Osgood?g???} ?????????????}?????????????X????wa???g???? ?eRamberg-Osgood?g???}???)?????????????? ????l?u??wa ?4?????b?0?????????????????????0???0 ?????????}???x ??2?i?0???????????0?????}?? 2?n?????L 1 ??????????????????wa?c?e???n?????L?0?x ?????n?????LwK?????n?????LwK???E?n?h?n???? ?Lwa?X?R???????????????E?}?????M?)?????n???? ?L?e???????????x?????+???????????????????? ?????0???????????X?M???g?????e???yJ?n?????Lwa ???)?????????????????????k???yMises?????? ?????w???t?????E???)?????_??wa?????)???????? ????????????????????????wa???t???????????f ???????????????E??90?-wa 13????wK????wK?N?????????6???e ?o?eNewtonjFRaphson?????????)???e???? ?d?z???????????????)??r???y???X?????????X ?????M?????????????M???????????x?????????? 0_SMPawa???{?????????????L?)?(?N???x???????? ???X?(?t?????????u???z???????)???K?????2wa?? ?Mwa?z????nH???k???)??????????????05MPawa ???e???????A????????(d?yt?)???dd???????? ??)wK???????A????????(I?ywK?yDt?M???dL?????? ????)wK???????A????????(OhT?)0??????????)?? ??????wa?????s?(???4?d?)?(?b???e?????????? ??????????????)?)Mwa(?????????????N?????? ??)?M??wa(???i????)??Pc(????????????????)?MM (?????????N??????)?)??I(???????????k??)???? ???????Awap??jF?0Lwaj5o DjFtwawa ???d?x?E???????????????St???????????SD ???????A??wa?M?M?x M??Rjdwa ???d?xR????????????wa 14?????????????? ?4?????????????????????????????????? ?????????A?M?????????????x(i){?u?K???y?????? ??wa????????????????????F?)???????????????? ???????????g?y?????????????A?M?)?????????? ??1?????0?????}?????? ???h{ip?j??fIr+wk??j5|? W?g?F???{????????12?? ??i?????E??f??????D??t?f??Iwz?S?y owalMPa?)Er P7?J7? (m7?Jn??)j5m??' ??????II?S API?M5L?MX605'????206tlIO?M3?xt24lO '?????? ??6???d???????N?????? ???????????M???????? ???????x?????????? ???????)?????F?M?? ?????????M?????????? ?4???????xO????K???? ?????????)?{???????? ?????????????)?????4 ?w?x???????u???????? ?????y???)???u??????????????wa?????????????? ?????????g???0???Awa???????u?????????????X???) ??????????????????????????????????I??????wa ?F?????u?????????????Xwa?????????????????? ????wa LZ?yDtL7?n P=15Mpd?yt=0?M4 ??3?????????????????????????A ?4?????????????????????????????????? ?????????Awa?????Z?R?xO????K???)E?????????M?? ?????????????????????????????????????)?? ???MO????K?????????????????)???????????????? ?????????????????)????wa???N?)?????u???????? ?????y?)?????????????????????????????A???M ?Zwa 02t ??wa?M ??wa7 O|J p=15Mpd?yt=0?M5 ???????'?????????????????A 2???? ?g???x???????X?0?????????M???????0???? ???????}???)?????(???????????????e????wK?? ??wK?Nj{i?x?????6???e?4????????????????wa???F ?????????????????????????????????i?)?????_ ???4??f????????????????????????????wa ???????????e????wK????wK?N?????????6?? ?e?4?M???????????????????????????)????wa?F?? ?????????????X?)????????wa?????u???????????_ ???????M????????wa ?????????????i?Q???????e?4?????????? ???????????????????X?M???u???????????????)?? ????????????????wa?F?????????????)????????wa ??K?_???????M????????wa ??????????1?x???????????????????0???????? ??wK?????????????)??????????????????wa?????? ???_?????????)???????A???????M?Zwa ???t???9 flp(tleJ|LAnon-linearfinite-element analysisofbucklepropagation insubsea corrodedpioelinesFiniteElementsinAnalysis andDesign,2006,42?x1211-121?M wz21?????M?)???R???)???c???M?b?????????????? ?????????'???F???M????????wa200?M28(1?? 23jF26 131?P???M?M???c???M?i?u?????????????????? ???????M???????c????????20014jL32??17- 2Q