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Çѱ¹Áö¹Ý°øÇÐȸ / v.16, no.1, 2000³â, pp.65-73
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¹Ì¼Òº¯Çü·ü ¹× ´ëº¯Çü·ü Á¶°ÇÀÇ °Åµ¿¿¡ ´ëÇÑ ºñµî¹æ°æÈ ź¼Ò¼º ±¸¼º¸ðµ¨
( An Anisotropic Hardening Elasto-Plastic Constitutive Model for the Behavior at Small-to-Large Strain Conditions ) |
| ¿À¼¼ºØ;±Ç±âö;Á¤¼ø¿ë;±èµ¿¼ö; ¿µ³²´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;µ¿ÀÇ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø Åä¸ñ°øÇаú;
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| º» ¿¬±¸¿¡¼´Â ¹Ì¼Òº¯Çü·ü¿¡¼ ´ëº¯Çü·ü±îÁöÀÇ °Åµ¿À» ¸ðµ¨ÇÒ ¼ö Àִ ź¼Ò¼º ±¸¼º¸ðµ¨À» °³¹ßÇÏ¿´´Ù. Á¦¾ÈµÈ ±¸¼º¸ðµ¨Àº ÀÏ¹Ý µî¹æ°æÈ±ÔÄ¢¿¡ ±Ù°ÅÇÑ ºñµî¹æ °æÈ±ÔÄ¢°ú ÀüÀÀ·Â °³³äÀ» Åä´ë·Î °³¹ßÇÏ¿´´Ù. ±×¸®°í Á¦¾ÈµÈ ±¸¼º°ü°è°¡ ±âÁ¸ÀÇ ´ëÇ¥Àû ±¸¼º¸ðµ¨À» Æ÷ÇÔÇϰí ÀÖÀ½À» ¼öÇÐÀûÀ¸·Î ÀÔÁõÇÏ¿´´Ù. ±¹³» ȰdzÈÅä¿¡ ´ëÇÑ °øÁøÁÖ½ÃÇè, ºñƳÀü´Ü½ÃÇè, »ïÃà½ÃÇè µî ÀÏ·ÃÀÇ ½Ç³»½ÃÇè °á°ú¸¦ ÀÌ¿ëÇÏ¿© °ËÁõÇÑ °á°ú, ½Ö°î¼± ¸ðµ¨ ¹× Ramberg-Osgood¸ðµ¨°ú ºñ±³ÇÏ¿© Á¦¾ÈµÈ ¸ðµ¨Àº ¹Ì¼Òº¯Çü·ü¿¡¼ ´ëº¯Çü·ü±îÁöÀÇ °Åµ¿À» ´õ¿í ÀϰüµÇ°í Á¤È®ÇÏ°Ô ¸ðµ¨ÇÒ ¼ö ÀÖ´Ù. ¶ÇÇÑ ºñƳÀü´Ü½ÃÇè °á°ú¿ÍÀÇ ºñ±³¿¡¼´Â, ¹Ì¼Òº¯Çü·ü Á¶°Ç¿¡¼ ³ªÅ¸³ª´Â ºñ¼±Çü¼ºÀ» ÀûÇÕÇÏ°Ô ¿¹ÃøÇÒ ¼ö ÀÖ¾ú´Ù. |
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| An elasto-plastic constitutive model was proposed, in which the behavior at small-to-large strain level can be modeled. The proposed model is based on the anisotropic hardening description with the generalization of isotropic hardening rule and the total stress concept. From a mathematical approach it was proved that the model includes the previous successful models. The model was verified by a series of resonant column tests, torsional shear tests and triaxial tests, and the proposed model predicted small-to-large strain behavior more consistently and accurately than the hyperbolic model and the Ramberg-Osgood model for a weathered granitic soil. In addition, the nonlinearity under small strain condition was predicted appropriately for the torsional shear test results. |
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| Ű¿öµå |
| Elasto-plasticity;Anisotropic hardening rule;Small-to-large strain;Shear modulus; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.16, no.1, 2000³â, pp.65-73
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011921750040)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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