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Çѱ¹Áö¹Ý°øÇÐȸ / v.12, no.4, 1996³â, pp.145-156
ÀÏ¹Ý µî¹æ°æÈ­ ±¸¼º°ü°è¿¡ ´ëÇÑ ³»ÀçÀûÀÎ À½·ÂÀûºÐ : 1. Á¤½ÄÈ­
( Implicit Stress Integration of the Generalized Isotropic Hardening Constitutive Model : 1. Formulation )
¿À¼¼ºØ;À̽·¡; Á¤È¸¿ø, ¿µ³²´ëÇб³ Åä¸ñ°øÇаú;Á¤È¸¿ø, Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;
 
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¿¬¾àÇÑ Áö¹ÝÀÇ °Åµ¿À» ÀûÀýÇÏ°Ô Ç¥ÇöÇÒ ¼ö ÀÖ´Â ÀÏ¹Ý µî¹æ°æÈ­ ±ÔÄ¢¿¡ ±Ù°ÅÇÑ ºñµî¹æ°æÈ­ ±¸¼º¸ðµ¨À» ºñ¼±Çü À¯ÇÑ¿ä¼ÒÇØ¼®¿¡ Àû¿ëÇϱâ À§ÇÏ¿© ³»ÀçÀûÀÎ ÀÀ·ÂÀûºÐ±â¹ýÀ» Á¤½ÄÈ­ÇÏ¿´´Ù. Á¤½ÄÈ­µÈ ÀÀ·ÂÀûºÐ±â¹ýÀº ºñ¼±Çü ÇØ¼®½Ã¿¡ ÇÊ¿äÇÑ ÀÀ·ÂÀ» ÀÏ¹Ý »ç´Ù¸®²Ã±ÔÄ¢¿¡ ÀÇÇÏ¿© ³»ÀçÀûÀ¸·Î ÀûºÐÇϰí ÀÀ·Âº¯Çü·ü Á¢¼±°è¼ö¸¦ ºñ¼±Çü ÇØ¹ý¿¡ ÀϰüµÇ°Ô µµÃâÇÒ ¼ö ÀÖ´Ù. ÀÌ·¯ÇÑ ¾Ë°í¸®ÁòÀ» ÅëÇÏ¿© ÇØÀÇ Á¤È®µµ ¹× ¼ö·Åµµ¸¦ È®º¸ÇÒ ¼ö ÀÖÀ¸¹Ç·Î, ºñµî¹æ°æÈ­ ±¸¼º °ü°è¸¦ Àû¿ëÇÑ ºñ¼±Çü ÇØ¼®À» Á¤È®Çϰí È¿À²ÀûÀ¸·Î ¼öÇàÇÒ ¼ö ÀÖ´Â Åä´ë¸¦ ±¸ÃàÇÒ ¼ö ÀÖ¾ú´Ù.
An implicit stress integration algorithm was formulated for implementing an aiusotorpic hardening constitutive model which has been based op the generalized isotropic hardening rule in nonlinear finite element analysis technique. the rate form of stress tensor was implicitly integrated using the generalized trapezoidal rule and the tangent stress-strain modulus was evaluated consistently with the nonlinear solution technique. As a result, it has been found that the nonlinear analysis with the anisotropic hardening constitutive model might be performed accurately and efficiently.
 
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Implicit stress integration;Consistent tangent modulus;Anistropic hardening rule;Elastoplastic constitutive relationship;Generalized trapezoidal rule;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.12, no.4, 1996³â, pp.145-156
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920446737)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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