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·­Ò룺During crack propagation, there are some disconnected and isolated voids around main crack, these defects will become new crack if the conditions are obtaining, They will continue to grow in a line and become some branch cracks.

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°®ÓëÓêÏÂ: ½ð±Ò+1 2012-07-01 21:47:34
СÀ¼»¨: ½ð±Ò+8, ·­ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú, ¸Ðл°ïæ¡£ 2012-07-13 23:28:14
СÀ¼»¨: ½ð±Ò+8, лл¡£ 2012-08-01 08:40:52
During the crack propagation, some disconnectedly isolated microvoids around the main cracks can bee seen. These defeats are the germ of new cracks. They may continue to grow to lines and become forficate cracks if conditions permitted.


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