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1篇 您的检索式：作者名="Raimund Biilte"

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		题名	作者	年代	出处	被引量
	1	Formation of internal cracks in steel billets during soft reduction显示文摘To investigate the formation of internal cracks in steel billets during soft reduction, fully coupled thermo-mechanical finite element models were developed using the commercial software ABAQUS, also casting and soft reduction tests were carried out in a laboratory strand casting machine. With the finite element models, the temperature distribution, the stress and strain states in the bil-let were calculated. The relation between internal cracks and equivalent plastic strain, as well as maximal principal stress was ana-lyzed. The results indicate that tensile stresses can develop in the mushy zone during soft reduction and the equivalent strain nearby the zero ductility temperature (ZDT) increases with decreasing solid fraction. Internal cracks can be initiated when the accumulated strain exceeds the critical strain or the applied tensile stress exceeds the critical fracture stress during solidification.	Wenjun Wang Linxin Ning Raimund Biilte Wolfgang Bleek	2008	Journal of University of Science and Technology Beijing2008，15，2：	1

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