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		题名	作者	年代	出处	被引量
	1	Modelling of heat conduction and phase transformations during sliding of railway wheels 显示文摘	Johan Ahlstrom Birger Karlsson	2002	Wear2002，253，：	1
	2	Modelling of heat conduction and phase transformations during sliding of railway wheels 显示文摘	Johan Ahlstrom Birger Karlsson	2002	Wear2002，253，12：	1
	3	用标准加入法测定不同类型皮革中的禁用偶氮染料显示文摘将基于微波萃取(MAE)和标准加入法的分析方法用于了牛革、绵羊革和山羊革中,禁用偶氮染料的测定。将溶于甲醇或水的偶氮染料在4个不同水平上应用标准加入法。偶氮染料是通过用连二亚硫酸钠和氯化锡(Ⅱ)还原染料所生成的有害胺类物质的间接方法测得的。对比所得胺类物质的理论值进行准确度评估,同时还对比了未加入染料的革样通过外标校准法所得回收结果。标准加入法所提供的准确度远远高于外标校准法,并且对于大部分胺类物质的回收接近100%。由于使用甲醇或水作溶剂的标准加入法所得结果没有很大区别,因此将染料溶于甲醇这种标准加入法更好,这是因为在加入标准溶液后溶剂(甲醇)的蒸发更快。	Lars-Henric Ahlstrom Johan Raab Lennart Mathiasson 龚英	2008	中国皮革2008，37，15：	1
	4	Modified Railway Wheel Steels: Production and Evaluation of Mechanical Properties with Emphasis on Low-Cycle Fatigue Behavior显示文摘	Johan Ahlstrom Birger Karlsson	2009	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science2009，40，7：	1
	5	Modelling of Heat Conduction and Phase Transformations During Sliding of Railway Wheels 显示文摘	Johan Ahlstrom Birger Karlsson	2002	Wear (S0043-1648)2002，253，12：	1
	6	Modelling of temperature and strain rate dependent behaviour of pearlitic steel in block braked railway wheels显示文摘Block braked railway wheels are subjected to thermal and rolling contact loading.The thermal loading results in high temperatures and thermal stresses which cause slow time dependent processes such as creep,relaxation and static recovery of the wheel material.At the same time,the rolling contact loading implies a very fast mechanical load application.This paper is focused on material modeling of pearlitic steel for a wide range of loading rates at elevated temperatures.The starting point is a viscoplasticity model including nonlinear isotropic and kinematic hardening.The Delobelle overstress function is employed to capture strain rate dependent response of the material.The model also includes static recovery of the hardening to capture slower viscous(diffusion dominated)behaviour of the material.Experiments for the pearlitic wheel steel ER7 in terms of cyclic strain-controlled uniaxial tests with hold-time,uniaxial ratchetting tests including rapid cycles and biaxial cyclic tests with tension/compression and torsion are used to calibrate the material model.These experiments were performed under isothermal conditions at different temperatures.In the ratchetting tests,higher loading rates are obtained and these have been used to calibrate the high strain rate response of the viscoplasticity model.The paper is concluded with a numerical example of a block braked wheel where the importance of accounting for the viscoplasticity in modelling is highlighted.	Ali Esmaeili Johan Ahlstrom Magnus Ekh Dimitrios Nikas Tore Vernersson	2021	Railway Engineering Science2021，29，4：	0

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