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3篇 您的检索式：作者名="D.J. Yu"

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		题名	作者	年代	出处	被引量
	1	Refining constitutive relation by integration of finite element simulations and Gleeble experiments显示文摘Thermo-mechanical coupled finite element calculations were carried out to simulate the Gleeble compression of the samples of a titanium alloy(Ti60), and the results are analyzed and compared with the actual compression tests conducted on a Gleeble 3800 thermo-mechanical simulator. The changes in temperature, stress and strain distribution in the samples and the source of error on the constitutive relations from Gleeble hot compression test were analyzed in detail. Both simulations and experiments showed that the temperature distribution in the specimen is not uniform during hot compression, resulting in significant deformation inhomogeneity and non-ignorable error in the flow stress strain relation,invalidating the uniform strain assumption commonly assumed when extracting the constitutive relation from Gleeble tests. Based on the finite element simulations with iterative corrections, we propose a scheme to refine the constitutive relations from Gleeble tests.	D.J. Yu D.S. Xu H. W ang Z.B. Zhao G.Z. Wei R. Yang	2019	Journal of Materials Science & Technology2019，35，6：	6
	2	Surface runoff phosphorus (P) loss in relation to phosphatase activity and soil P fractions in Florida sandy soils under citrus production显示文摘	S. Yu Z.L. He P.J. Stoffella D.V. Calvert X.E. Yang D.J. Banks V.C. Baligar	2005	Soil Biology and Biochemistry2005，，3：	1
	3	Atomistic Simulation of the Orientation-dependent Plastic Deformation Mechanisms of Iron Nanopillars显示文摘Tensile tests were performed on iron nanopillars oriented along [001] and [110] directions at a constant temperature of 300 K through molecular dynamics simulations with an embedded-atom interatomic potential for iron.The nanopillars were stretched until yielding to investigate the onset of their plastic deformation behaviors.Yielding was found to occur through two different mechanisms for [001] and [110] tensions.In the former case,plastic deformation is initiated by dislocation nucleation at the edges of the nanopillar,whereas in the latter case by phase transformation inside the nanopillar.The details during the onset of plastic deformation under the two different orientations were analyzed.The varying mechanisms during plastic deformation initiation are bound to influence the mechanical behavior of such nanoscale materials,especially those strongly textured.	Y. Zhang D.J. Yu K.M. Wang	2012	Journal of Materials Science & Technology2012，28，2：	1

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