Plastic Material

 

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¼Ò¼ºÇؼ®¿¡ Àû¿ëµÇ´Â ¼Ò¼º¸ðµ¨À» ÁöÁ¤ÇÕ´Ï´Ù.

  • Tresca, Von Mises

±Ý¼Ó°ú °°ÀÌ ¼Ò¼º ºñ¾ÐÃ༺(Plastic Incompressibility)À» º¸ÀÌ´Â ¿¬¼ºÀç·á¿¡ ÀûÇÕ

  • Mohr-Coulomb, Drucker-Prager

ÄÜÅ©¸®Æ®³ª ¾Ï¼®, Áö¹Ýó·³ ºÎÇÇ ¼Ò¼ºº¯ÇüÀ» ÀÏÀ¸Å°´Â Ã뼺Àç·á¿¡ ÀûÇÕ

 

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Plastic Material ´ëÈ­»óÀÚ

 

Add/Modify Plastic Material ´ëÈ­»óÀÚ

 

Name

¼Ò¼º¸ðµ¨ÀÇ À̸§

Model

¼Ò¼º¸ðµ¨ÀÇ Á¾·ù

Tresca : ±Ý¼Ó°ú °°ÀÌ ¼Ò¼º ºñ¾ÐÃà(Plastic Incompressibility)À» º¸ÀÌ´Â ¿¬¼º Àç·á¿¡ ´ëÇØ ÀûÇÕÇÑ ¸ðµ¨ÀÔ´Ï´Ù.

Von Mises : ÀÌ ±âÁØÀº º¯Çü¿¡³ÊÁö¸¦ ±â¹ÝÀ¸·Î ÇÑ ¸ðµ¨·Î½á ±Ý¼Ó¿¡ ´ëÇØ °¡Àå ÀϹÝÀûÀ¸·Î ¼ö¿ëµÇ´Â Ç׺¹±âÁØÀÔ´Ï´Ù.

Mohr-Coulomb : Coulomb ¸¶Âû¹ýÄ¢ÀÇ ÀÏÈ­µÈ ¸ðµ¨·Î½á ÄÜÅ©¸®Æ®, Áö¹Ý, ¾Ï¼®°ú °°ÀÌ ºÎÇÇ ¼Ò¼ºÀ» º¸ÀÌ´Â Àç·á¿¡ ÀûÇÕÇÑ ¸ðµ¨ÀÔ´Ï´Ù.

Drucker-Prager : ÀÌ ±âÁØÀº Mohr-Coulomb ±âÁØ°ú ±Ù»çÇÏ°í, von Mises ±âÁØÀÇ È®ÀåµÈ ÇüÅ·νá ÄÜÅ©¸®Æ®, Áö¹Ý, ¾Ï¼®°ú °°ÀÌ ºÎÇÇ ¼Ò¼ºÀ» º¸ÀÌ´Â Àç·á¿¡ ÀûÇÕÇÑ ¸ðµ¨ÀÔ´Ï´Ù.


À§ 4°¡Áö ¼Ò¼º¸ðµ¨¿¡ ´ëÇÑ ÀÚ¼¼ÇÑ ³»¿ëÀº “Analysis & Design” ¸Å´º¾ó ºñ¼±ÇüÇؼ®ÀÇ ¼Ò¼ºÀç·á¸ðµ¨ ºÎºÐ ÂüÁ¶

Plastic Data

Tresca, von Mises°¡ ¼±ÅÃµÈ °æ¿ì

Initial Uniaxial Yield Stress : ÀÏÃà ÀÎÀå ½ÇÇè¿¡ ÀÇÇÑ Ç׺¹ÀÀ·Âµµ

Mohr-Coulomb, Drucker-Prager°¡ ¼±ÅÃµÈ °æ¿ì

Initial Cohesion : ÃʱâÁ¡¼º


Normal Stress°¡ '0'ÀÏ ¶§ Shear Stress¸¸¿¡ ÀÇÇÑ Ç׺¹ÀÀ·Âµµ¿Í °°´Ù.

Initial Friction Angle : Ãʱ⠳»ºÎ ¸¶Âû°¢


Initial Friction AngleÀÇ ÀÔ·ÂÀº Plastic Material ModelÀÌ Mohr-CoulombÀ̳ª Drucker-PragerÀÏ °æ¿ì “0 < Initial Friction Angle < 90”ÀÇ ¹üÀ§¿¡¼­ ÀԷ°¡´ÉÇÏ´Ù. ÀÌ¿ÜÀÇ °ªÀ» ÀÔ·ÂÇÏ´Â °æ¿ì, Initial Friction AngleÀÇ Default°ªÀ» 30À¸·Î ÃʱâÈ­ÇÏ¿© ÀÚµ¿À¸·Î ÀԷµȴÙ

Hardening

Àç·á°¡ Ç׺¹ÇÒ ¶§ ¼Ò¼ºº¯Çü¿¡ µû¸¥ Ç׺¹¸éÀÇ º¯È­¸¦ Á¤ÀÇÇÕ´Ï´Ù.

Ç׺¹¸é º¯È­ÀÇ Çü½Ä¿¡ µû¶ó ´ÙÀ½°ú °°ÀÌ 3°¡Áö·Î ºÐ·ùµË´Ï´Ù.

Isotropic : µî¹æ¼º °æÈ­

Kinematic : ¿îµ¿Çü °æÈ­

Mixed : È¥ÇÕÇü °æÈ­


À§ 3°¡Áö °æÈ­¹ýÄ¢¿¡ ´ëÇÑ ÀÚ¼¼ÇÑ ³»¿ëÀº “Analysis & Design” ¸Å´º¾ó ºñ¼±ÇüÇؼ®ÀÇ °æÈ­¹ýÄ¢ ºÎºÐ ÂüÁ¶.

Back Stress Coefficient
Isotropic HardeningÀÇ Á¤µµ Ç¥½Ã

Isotropic HardeningÀ̸é '1'

Kinematic HardeningÀ̸é '0'

Mixed HardeningÀ̸é '0~1'»çÀÌ°ª


¼Ò¼ºº¯ÇüµµÀÇ ÃÑ ÁõºÐÀº ´ÙÀ½°ú °°ÀÌ µî¹æ¼º °æÈ­¿Í ¿îµ¿Çü °æÈ­¿¡ ´ëÇÑ ¼ººÐÀ¸·Î ³ªÅ¸³¾ ¼ö ÀÖ´Ù.

¿©±â¼­ MÀº Back Stress Coefficient ·Î '0~1'»çÀÌ °ªÀ» °®´Â´Ù.

Hardening Coefficient
Ç׺¹ ÀÌÈÄ Àç·áÀÇ Á¢¼±°­¼º ÀÔ·ÂÇÕ´Ï´Ù. ÀϹÝÀûÀ¸·Î 1Â÷ Ç׺¹ ÀÌÈÄ¿¡´Â Ãʱâ Á¢¼±ÀÇ ±â¿ï±âº¸´Ù ÀÛ¾ÆÁö°Å³ª ÀÏÁ¤ÇÑ °ªÀ» °¡Áö°Ô µË´Ï´Ù.


Plastic Material(von MisesÀÎ °æ¿ì)ÀÇ Hardening Coefficient´Â MaterialÀÇ Elastic ModulusÀÌ»óÀÇ °ªÀ» ÀÔ·ÂÇÒ ¼ö ¾ø´Ù.

Masonry °¡ ¼±ÅÃµÈ °æ¿ì

Brick Material

 

 

Young's Modulus : ź¼º°è¼ö

Poisson's Ratio : Æ÷¾Æ¼Ûºñ

Comp. Strength, fc : ¾ÐÃà°­µµ

Tensile Strength, ft : ÀÎÀå°­µµ

Softening Parameter, h : ¿¬È­°è¼ö

Friction Angle : ¸¶Âû°¢

Bed Joint Material

 

Young's Modulus : ź¼º°è¼ö

Poisson's Ratio : Æ÷¾Æ¼Ûºñ

Comp. Strength, fc : ¾ÐÃà°­µµ

Tensile Strength, ft : ÀÎÀå°­µµ

Hardening Parameter, h : °æÈ­°è¼ö

Bond Wrench Strength : Å»ºÎÂø °­µµ

Head Joint Material

 

Young's Modulus : ź¼º°è¼ö

Poisson's Ratio : Æ÷¾Æ¼Ûºñ

Comp. Strength, fc : ¾ÐÃà°­µµ

Tensile Strength, ft : ÀÎÀå°­µµ

Hardening Parameter, h : °æÈ­°è¼ö

Bond Wrench Strength : Å»ºÎÂø °­µµ

Geometry

 

Brick Length, L : º®µ¹ ³Êºñ

Brick Height, H : º®µ¹ Æø

Thickness of Bed, Tb : °¡·ÎÁÙ´«ÀÇ Æø

Thickness of Head, Th : ¼¼·ÎÁÙ´«ÀÇ Æø