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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.4, 2002³â, pp.207-214
ºñµî¹æ°æÈ­ ±¸¼º¸ðµ¨À» ÀÌ¿ëÇÑ ´ëº¯Çü ÇØ¼® : I. Á¤½ÄÈ­
( Large Deformation Analysis Using and Anistropic Hardening Constitutive Model : I. Formulation )
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¹Ì¼Òº¯Çü¿¡¼­ ´ëº¯Çü¿¡ À̸£´Â Àüü º¯Çüµµ ¿µ¿ªÀÇ ±¸¼º¸ðµ¨À» ABAQUS Äڵ忡 ±¸ÇöÇÏ¿´´Ù. ±¸¼º¸ðµ¨Àº ºñµî¹æ°æÈ­±ÔÄ¢¿¡ ±Ù°ÅÇÑ ÀüÀÀ·Â °³³äÀÇ Åº¼Ò¼º ¸ðµ¨ÀÌ´Ù. »ç¿ëµÈ Á¤½ÄÈ­ ¹× ¾Ë°í¸®ÁòÀº (1) Jaumann ÀÀ·Â¼Óµµ¸¦ ÀÌ¿ëÇÑ ´ëº¯Çüµµ Á¶°Ç Á¤½ÄÈ­ (2) ³»ÀçÀû ÀÎ ÀÀ·ÂÀûºÐ (3) ÀϰüµÈ Á¢¼±°è¼ö¸¦ Æ÷ÇÔÇϰí ÀÖ´Ù. À̸¦ ÅëÇÏ¿© ºñµî¹æ°æÈ­ ±¸¼º°ü°è¸¦ Àû¿ëÇÑ ´ëº¯Çü ÇØ¼®À» Á¤È®Çϰí È¿À²ÀûÀ¸·Î ¼öÇàÇÒ ¼ö ÀÖ´Â Åä´ë¸¦ ±¸ÃàÇÏ¿´´Ù. µ¿¹Ý³í¹®(Àüº´°ï µî, 2002)¿¡¼­´Â ¿¹Á¦Çؼ®À» ÅëÇÏ¿© »õ·Î¿î ±¸¼º¸ðµ¨°ú ABAQUS Äڵ带 ÀÌ¿ëÇÑ ´ëº¯Çü ÇØ¼®°á°ú¸¦ ±â¼úÇÏ¿´´Ù.
A constitutive model was implemented in ABAQUS code, The constitutive equation can model the behavior for overall range of strain level from small to large deformation, which is based on anisotropic hardening rule and total stress concept. The formulation includes (1) finite strain formulation on the basis of Jaumann rate, (2) implicit stress integration and (3) consistent tangent moduli. Therefore, the mathematical background was established in order that large deformation analysis can be performed accurately and efficiently with the anisotropic constitutive model. Companion paper(Jeon et al., 2002) will contain the large deformation analysis results of examples with the constitutive model using ABAQUS.
 
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ABAQUS;Anistropic hardening rule;Consistent tangent moduli;Implicit stress integration;Large deformation analysis;Nonlinear finite element analysis;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.4, 2002³â, pp.207-214
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921342084)
¾ð¾î : Çѱ¹¾î
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