|
|
|
Çѱ¹Áö¹Ý°øÇÐȸ / v.10, no.3, 1994³â, pp.119-134
|
±Õ¿Á¡ÅäÀÇ ±Õ¿ÁøÇà¿¡ ´ëÇÑ °¼¶À¯ÀÇ º¸°È¿°ú
( Effects of Reinforcement of Steel Fibers on the Crack Propagation of Fissured Clays ) |
| À¯ÇѱÔ; Á¤È¸¿ø, »ï¼º°Ç¼³ Åä¸ñ¼³°è ENGÆÀ;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ±Õ¿Á¡Åä¿¡ ´ëÇÑ °¼¶À¯ »ç¿ë °¡´É¼ºÀ» Æò°¡Çϱâ À§ÇÏ¿© ±Õ¿ÀÌ ÀÖ´Â º¸°Á¡Åä¿Í ºñº¸°Á¡Åä ½Ã·á¿¡ ´ëÇÑ ÀÏÃà¾ÐÃà½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ½ÇÇè°á°ú °¼¶À¯ º¸°À¸·Î ÀÎÇÏ¿© ±Õ¿ÀÇ ½ÃÀÛ°ú ÁøÇà¿¡ ´ëÇÑ ÀúÇ׷¿¡ Áõ°¡ÇÏ¹Ç·Î½á ±Õ¿ ½ÃÀ۽à ÀÀ·Â°ú ÆÄ±«½Ã ±ØÇÑÀÀ·ÂÀÌ Áõ°¡µÇ¾ú´Ù. ±Õ¿ÀÇ ½ÃÀÛ°ú ÁøÇà¿¡ ´ëÇÑ ÀúÇ×·ÂÀÇ Áõ°¡´Â Á¡Åä½Ã·á¿¡¼ °¼¶À¯¿¡ ÀÇÇÑ ±Õ¿ÁøÇàÀÇ ¾ïÁ¦ ¶Ç´Â ÁøÇà¹æÇâÀÇ º¯°æ°ú °ü·ÃµÇ¾î ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. ÆÄ±«¿ªÇÐ À̷аú ¼¶À¯·Î º¸°µÈ ¹°Áú¿¡¼ÀÇ ÀϹݹÌÄÉ´ÏÁòÀ» Àû¿ëÇÏ¿© ½ÇÇè°á°ú¿¡ ´ëÇÑ ÀÌ·ÐÀûÀÎ ÇØ¼®ÀÌ ÀÌ·ç¾îÁ³´Ù. ÇØ¼®°á°ú °¼¶À¯ÀÇ ÀιßÀÛ¿ëÀ» ÅëÇÑ ¿¬°áÈ¿°ú·Î ÀÎÇÏ¿© ½Ã·á¿¡¼ ±Õ¿ÀÇ ÁøÇà¿¡ ´ëÇÑ ÀúÇ×·ÂÀÌ Áõ°¡µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ÀÌ·ÐÀûÀÎ ºÐ¼®¿¡ ÀÇÇÏ¿© ¿¹ÃøµÈ Àι߷ÂÀº Àι߽ÇÇèÀ¸·Î ºÎÅÍ »êÁ¤µÈ °ª°ú ºñ±³Àû Àß ÀÏÄ¡µÇ¾ú´Ù. |
|
| In order to assess the possibility of using steel fibers in the fissured ciays, uniaxial compression tests were performed on both unreinforced and reinforced clay samples containing a pre-existing crack. Test results showed that the steel fiber reinforcement increased resistance to cracks initiation and their propagation, and therefore increased both stress at crack growth initiation and peak stress at failure. The increase in resistance to cracks initiation and their propagation was related to the arresting or deflecting the crack propagation in clay samples by steel fibers. A theoretical interpretation of experimental results was made using fracture mechanics theory and pull-out mechanisms in fiber reinforced materials. It was revealed that the steel fibers had bridging effect through their pull-out action that caused an increased resistance to the propagation of the cracks in the samples. The predicted pull-out force based on theoretical analyses agreed reasonably well with the measured values obtained from pull-out tests. |
| |
| Ű¿öµå |
|
| |
|
|
 |
|
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.10, no.3, 1994³â, pp.119-134
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199411920445627)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|