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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.4, 2003³â, pp.277-286
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ÈëÀÇ ¼ÓµµÇü½Ä ź¼Ò¼º±¸¼º¸ðµ¨¿¡ ´ëÇÑ ´ëº¯Çüµµ Á¤½ÄÈ
( Large Deformation Formulation of a Hypoelasto-plastic Constitutive Model for Soils ) |
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| ¹Ì¼Òº¯Çü¿¡¼ ´ëº¯Çü¿¡ À̸£´Â Àüº¯Çüµµ ¿µ¿ªÀÇ °Åµ¿À» ¸ðµ¨Çϱâ À§ÇÏ¿© ºñµî¹æ °æÈ±ÔÄ¢°ú ÀüÀÀ·Â°³³ä¿¡ ÀǰÅÇÑ ±¸¼º°ü°è¸¦ ÀÌ¿ëÇÏ¿´´Ù. ÀÌ·¯ÇÑ ±¸¼º°ü°è´Â ABAQUS Äڵ忡 ±¸ÇöµÇ¾úÀ¸¸ç ´ëº¯ÇüÇØ¼®½Ã Á¤È®µµ¿Í ¼ö·Å¼Óµµ¸¦ È®º¸Çϵµ·Ï ÇÏ¿´´Ù. ÀÌ Á¤½ÄÈ´Â Jaumann ÀÀ·Â¼Óµµ¿¡ ÀǰÅÇÑ À¯ÇÑ º¯Çüµµ ¼Ò¼º·Ð, ³»ÀçÀû ÀÀ·ÂÀûºÐ, ÀϰüµÈ Á¢¼±°è¼ö¸¦ Æ÷ÇÔÇÑ´Ù. ABAQUS¸¦ ÀÌ¿ëÇÑ ´ëº¯ÇüÇØ¼®À» ÅëÇÏ¿© ¾Ë°í¸®ÁòÀÇ Á¤È®µµ ¹× ¼ö·Åµµ ÇØ¼®À» ÇÒ ¼ö ÀÖ¾ú´Ù. |
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| A constitutive equation was implemented in order to model the behavior in overall ranges from small to large strains, which is based on anisotropic hardening rule and total stress concept. The constitutive model was implemented in ABAQUS code in which large deformation analysis can be performed accurately and efficiently. The formulation includes (1) finite strain plasticity on the basis of Jaumann stress rate, (2) implicit stress integration and (3) consistent tangent moduli. A large deformation analysis was performed with the constitutive model using ABAQUS program. In the analysis of an actual embankment, it was found that the proposed model was formulated accurately and efficiently. |
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| Ű¿öµå |
| Anisotropic hardening rule;Finite strain plasticity;Hypoelasticity;Large strains;Stress integration; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.4, 2003³â, pp.277-286
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921886654)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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