个人信息Personal Information
学历:博士研究生毕业
学位:工学博士学位
性别:男
学科:力学. 航空宇航科学与技术. 材料科学与工程. 机械工程. 冶金工程. 先进制造. 航空工程. 材料工程. 冶金工程. 机械工程. 固体力学
多尺度与微纳米力学,梯度结构材料,界面力学,固体本构关系,应变梯度理论,晶体塑性有限元,离散位错动力学,分子动力学,高熵合金,大数据与机器学习,材料基因,极端力学,高性能材料
报考该导师研究生的方式
欢迎你报考张旭老师的研究生,报考有以下方式:
1、参加西南交通大学暑期夏令营活动,提交导师意向时,选择张旭老师,你的所有申请信息将发送给张旭老师,老师看到后将和你取得联系,点击此处参加夏令营活动
2、如果你能获得所在学校的推免生资格,欢迎通过推免方式申请张旭老师研究生,可以通过系统的推免生预报名系统提交申请,并选择意向导师为张旭老师,老师看到信息后将和你取得联系,点击此处推免生预报名
3、参加全国硕士研究生统一招生考试报考张旭老师招收的专业和方向,进入复试后提交导师意向时选择张旭老师。
4、如果你有兴趣攻读张旭老师博士研究生,可以通过申请考核或者统一招考等方式报考该导师博士研究生。
2022-04-13 合作论文“Strain amplitude-dependent cyclic softening behavior of carbide-free bainitic rail steel: Experiments and modeling”在International Journal of Fatigue在线发表
Highlights
•The cyclic softening feature of carbide-free bainitic rail steel is revealed.
•A modified yield function is introduced to consider the strength differential effect.
•A new function is introduced to consider the transient Bauschinger effect.
•A new cyclic softening function is introduced to describe the strain amplitude-dependent cyclic softening.
•The hysteresis loop evolution is simulated reasonably.
Abstract
Experimental investigations of Carbide-free bainite (CFB) rail steel under different strain amplitudes are conducted to indicate the cyclic deformation feature and hysteresis loop evolution. A modified yield function with an exponential evolution coefficient is proposed to consider the strength differential effect, and a strain range-dependent coefficient is introduced to consider the transient Bauschinger effect. Moreover, a Logistic dose–response function and a cyclic softening function are introduced into the isotropic and kinematic hardening rules. Finally, the comparison between the simulated and experimental results demonstrates that the proposed model can reasonably describe the strain amplitude-dependent cyclic softening of CFB rail steel.
Link
https://doi.org/10.1016/j.ijfatigue.2022.106922
上一条:2022-04-26 合作论文“A cyclic visco-plastic constitutive model for the ratcheting behavior of U75VG rail steel under a wide range of loading rates”在Engineering Failure Analysis 在线发表
下一条:2022-04-07 博士生桂杨论文“Multiple-mechanism and microstructure-based crystal plasticity modeling for cyclic shear deformation of TRIP steel”在International Journal of Mechanical Sciences在线发表