%0 Journal Article
%T ½¨ÖþÓÃ¿¹Õð¸ÖHRB400E¢ó¼¶¸Ö½îº¸½Ó½ÓÍ·µÄµÍÖÜÆ£ÀÍÐÔÄÜ
%A ÂÞÔÆÈØ
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%A ÌïÈÊ»Û
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%J ¹¤³Ì¿ÆÑ§Óë¼¼Êõ
%D 2015
%R 10.15961/j.jsuese.2015.03.009
%X ÖÐÎÄÕªÒª: ²ÉÓÃÖáÏòÓ¦±ä¿ØÖÆ·½·¨£¬ÔÚMTS809À­Å¤¸´ºÏÆ£ÀÍÊÔÑé»úÉÏ¿ªÕ¹ÁËHRB400E¢ó¼¶¸Ö½îÄ¸²Ä¼°º¸½Ó½ÓÍ·µÄµÍÖÜÆ£ÀÍÊÔÑé£¬»ñµÃÁËÄ¸²Ä¼°º¸½Ó½ÓÍ·µÄµÍÖÜÆ£ÀÍÐÔÄÜ£¬ÈçÑ­»·Ó¦Á¦ÏìÓ¦ÌØÕ÷¡¢Ñ­»·Ó¦Á¦-Ó¦±ä¹ØÏµÒÔ¼°ÊÙÃüÔ¤²â¹«Ê½µÈ¡£Í¨¹ý¶Ï¿Úµç¾µÉ¨Ãè·¢ÏÖ£¬HRB400E¢ó¼¶¸Ö½îº¸½Ó½ÓÍ·µÄÁÑÎÆÃÈÉúÓÚÊÔ¼þ±íÃæ£¬ÇÒ´æÔÚ¶à´¦ÁÑÎÆÔ´¡£ÑÐ¾¿½á¹û±íÃ÷£¬º¸½Ó½ÓÍ·ÓëÄ¸²ÄµÄµÍÖÜÆ£ÀÍÊÙÃü¼°Î¢¹Û¶ÏÁÑ»úÀí·½Ãæ¾ù´æÔÚÃ÷ÏÔ²îÒì£¬²¢´ÓÁ¦Ñ§ÐÔÄÜ±ä»¯µÄ½Ç¶È¶ÔÒýÆð²îÒìµÄÔ­Òò½øÐÐÁË½âÊÍ¡£&lt;/br&gt;Abstract:The£–low£–cycle£–fatigue£–(LCF)£–behavior£–of£–the£–welded£–joint£–of£–the£–HRB400E¢ó£–aseismic£–reinforced£–bars£–promoted£–in£–the£–earthquake£–areas£–in£–China£–was£–investigated.The£–LCF£–tests£–under£–uniaxial£–strain£–control£–were£–carried£–out£–on£–a£–MTS809£–servo-hydraulic£–testing£–machine.The£–low£–cycle£–fatigue£–properties,such£–as£–the£–cyclic£–stress£–response£–characteristics,£–the£–cyclic£–stress-strain£–relationships£–and£–the£–fatigue£–life£–prediction£–models£–of£–the£–base£–metal£–and£–the£–welded£–joint£–were£–obtained.The£–Coffin-Manson£–parameters£–were£–derived£–from£–the£–test£–results.The£–SEM£–micrographs£–revealed£–that£–more£–than£–one£–fatigue£–cracks£–initiated£–at£–the£–specimen£–surfaces.The£–results£–showed£–that£–the£–low£–cycle£–fatigue£–life£–and£–the£–micro£–fracture£–mechanism£–of£–the£–welded£–joint£–are£–obviously£–different£–from£–those£–of£–the£–base£–metal.The£–reasons£–for£–the£–obvious£–difference£–of£–the£–LCF£–property£–and£–the£–micro£–fracture£–mechanism£–of£–the£–welded£–joint£–were£–also revealed£–from£–the£–change£–of£–the£–mechanical£–properties.
%K HRB400E¢ó¼¶¸Ö½î º¸½Ó½ÓÍ· µÍÖÜÆ£ÀÍ Á¦Ñ§ÐÔÄÜ&lt
%K /br&gt
%K HRB400E¢ó£–aseismic£–reinforced£–bars welded£–joint low£–cycle£–fatigue mechanical properties
%U http://jsuese.ijournals.cn/jsuese_cn/ch/reader/view_abstract.aspx?file_no=201400652&flag=1