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sunhua123AC

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[ÇóÖú] KIC ²âÊÔ ¸ù¾Ý£Á£Ó£Ô£Í£Å£³£¹£¹£¬Ô¤ÖÆÁÑÎÆºóÀ­¶ÏÊÔÑùµÄËÙÂÊ ÒÑÓÐ1È˲ÎÓë

Loading Rate¡ªFor conventional (quasi-static) tests, the specimen shall be loaded such that the rate of increase of stress-intensity factor is between 0.55 and 2.75 MPa¡Ìm/s (30 and 150 ksi¡Ìin./min) during the initial elastic displacement.

ÖеÄ0.55-2.75 MPa¡Ìm/s  Ôõôת»»³É mm/s µÄµ¥Î»¡£

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phoenix7573

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ÒýÓûØÌû:
10Â¥: Originally posted by sunhua123AC at 2014-08-21 14:24:14
kic ¹«Ê½ÈçÏÂA 4.1: K=P/B*W^0.5*f(a/W)
A 4.2: f(a/W)=(2+a/W)*/(1-a/W)^1.5
ÏȲâµÃP=41.875KN  B=37.74mm  W =76.13mm,  f(a/W)=9.09,
Ëã³öÀ´µÄKICÖµÔõôºÍ»úÆ÷ËãµÄ²»Ò»Ñù°¡£¬...

»¹ÓÐF(A/W£©ÄãÔõô²Å9.09 ÁÑÎÆ³¤¶È²»¹»°É
KICÒ»°ãÊÇÒªa/w=0.5,¶ÔÓ¦µÄf(a/W)=9.8
16Â¥2014-08-22 09:54:25
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С·¶bairoe

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http://www.docin.com/p-125620892.html
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2Â¥2014-08-21 11:34:38
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С·¶bairoe

ľ³æ (ÎÄ̳¾«Ó¢)

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1Mpa
= 1000000 N/m2
= 1000 KN/m2
Äú¿ÉÒÔת»»³Éǧţ/S
3Â¥2014-08-21 11:38:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sunhua123AC

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by С·¶bairoe at 2014-08-21 11:38:27
1Mpa
= 1000000 N/m2
= 1000 KN/m2
Äú¿ÉÒÔת»»³Éǧţ/S

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