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Çѱ¹Áö¹Ý°øÇÐȸ / v.8, no.2, 1992³â, pp.81-96
ź.¼Ò¼º ±¸¼º ¸ðµ¨ÀÇ ÃÊÁú¸Å°³º¯¼ö ¿¹¹Î¼º
( Sensitivity of Parameters for Elasto-plastic Constitutive Model )
Á¤Áø¼·;±èÂù±â;À̹®¼ö; ¿ø±¤´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;¿ø±¤´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú ¹Ú»ç°úÁ¤, Àü³²´ëÇб³ ³ó°ú´ëÇÐ ³ó°øÇаú;;
 
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º» ¹®Àº LadeÀÇ ´ÜÀÏÇ׺¹¸é ±¸¼º¸ðµ¨(single work-hardening model)À» ¼±Á¤ÇÏ¿© »çÁúÅäÀÇ °Åµ¿Çؼ®¿¡ ÇÊ¿äÇÑ ÅäÁú¸Å°³º¯¼ö¸¦ ½Ç³»½ÃÇèÀ» ÇÏ¿© ±¸ÇÏ´Â °úÁ¤¿¡¼­ ÇÊ¿¬ÀûÀ¸·Î ¹ß»ýÇÏ´Â ½ÇÇè¿ÀÂ÷°¡ ÇØ¼®°á°ú¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ¿´´Ù. ¿¬±¸¹æ¹ýÀ¸·Î¼­´Â ¹é¸¶°­ ¸ð·¡¿¡ ´ëÇÏ¿© µî¹æ¾ÐÃà-ÆØÃ¢½ÃÇè°ú ±¸¼Ó¾Ð·ÂÀ» ´Þ¸®ÇÑ ÀÏ·ÃÀÇ ¹è¼ö»ïÃà½ÃÇèÀ» Çϰí ÀÌ ½ÃÇèÀڷḦ ÀÌ¿ëÇÏ¿© ȸ±ÍºÐ¼®À» ±Ù°Å·Î, º» ¿¬±¸¿¡¼­ °³¹ßµÈ ÅäÁú ¸Å°³ º¯¼ö °áÁ¤ ÇÁ·Î±×·¥¿¡ ÀÇÇØ ±âÂù¸Å°³º¯¼ö¸¦ °áÁ¤ÇÏ°í ±× Æò±ÕÄ¡¿¡¼­ Ç¥ÁØÆíÂ÷¸¦ Áõ°¨½ÃÄÑ Ãà¹æ Ç⺯Çü·ü¿¡ ´ëÇÑ ÃàÂ÷ÀÀ·Â ¹× üÀûº¯Çü·üÀÇ »ó°è ¹× ÇÏ°è ¹üÀ§¸¦ ¹àÈûÀ¸·Î¼­ °¢ ÅäÁú¸Å°³º¯¼öÀÇ ¹Î°¨µµ¸¦ ±Ô¸íÇÏ¿´´Ù. ±× °á°ú ÅäÁú¸Å°³º¯¼ö°áÁ¤ ÇÁ·Î±×·¥ÀÇ ½Ç¿ë¼ºÀÌ Å©´Ù´Â °ÍÀ» È­ÀÎÇϰí LadeÀÇ ´ÜÀÏÇ׺¹¸é ±¸¼º¸ðµ¨ÀÇ ¿¹Ãø´É·ÂÀÌ ÁÁ´Ù´Â °ÍÀ» ¾Ë¾Ò´Ù.
This paper dealt with the influence of experimental error generated inevitably during performing experiments on the granular soil behaviour analysis selecting Lade's Single Work-Hardening constitutive model. Several isotropic compression-expansion tests and a series of drained conventional triaxial tests with various confining pressures for Baekma river sands were performed and the values of parameters for the above model were determined using computer program developed for this study based on regression analysis. By finding the range of the upper and lower bound for deviator stress and volumetric strain versus axial strain dependant on the increase and decrease of the standard deviation from mean value of parameters, sensitivities of all the parameters were examined. Practical use of program to determine the parameters and capability to predict the behaviour of granular soil by Lade's Single Work -Hardening model verified.
 
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.8, no.2, 1992³â, pp.81-96
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920444590)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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