• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >On the elasto-viscoplastic behavior of the Ti5553 alloy
【24h】

On the elasto-viscoplastic behavior of the Ti5553 alloy

机译：Ti5553合金的弹黏塑性行为

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The elastoviscoplastic behavior of the Ti5553 alloy is characterized and compared to the classical Ti-6Al-4V alloy. The true stress-strain curves are determined based on tensile tests performed under different strain rates at room temperature and at 150 ℃, from which the elastic constants and the parameters of a Norton-Hoff viscoplastic model are identified. The strength of the Ti5553 alloy is 20-40% higher than the strength of the Ti-6Al-4V alloy. The Ti5553 alloy constitutes thus a promising candidate for advanced structural applications. In view of modeling structural applications of forming operations, the elastic and plastic initial anisotropy of the two alloys is investigated by combining compression on cylinders with elliptical sections, uniaxial tensile tests in different material directions, plane strain and shear tests. The initial anisotropy of the different alloys is very weak which justifies the modeling of the mechanical behavior with an isotropic yield surface. The identified elastoviscoplastic model is validated by comparing experimental results with FE predictions both on cylindrical notched specimens subjected to tensile tests and on flat specimens subjected to plane strain conditions.
机译：表征了Ti5553合金的弹黏塑性行为，并将其与经典的Ti-6Al-4V合金进行了比较。真实的应力-应变曲线是根据在室温和150℃的不同应变率下进行的拉伸试验确定的，从而确定了Norton-Hoff粘塑性模型的弹性常数和参数。 Ti5553合金的强度比Ti-6Al-4V合金的强度高20-40％。因此，Ti5553合金是用于高级结构应用的有希望的候选者。考虑到对成形操作的结构应用进行建模，通过结合圆柱体上的椭圆截面压缩，不同材料方向的单轴拉伸试验，平面应变和剪切试验，研究了两种合金的弹性和塑性初始各向异性。不同合金的初始各向异性非常弱，这证明了具有各向同性屈服面的力学行为的建模是合理的。通过将经受拉力测试的圆柱状缺口试样和经受平面应变条件的扁平试样的实验结果与有限元预测进行比较，可以验证所确定的弹性粘塑性模型。

著录项

  • 来源
    《Materials Science and Engineering》 |2014年第3期|97-109|共13页
  • 作者

    Mohamed Ben Bettaieb; Thibaut Van Hoof; Thomas Pardoen; Philippe Dufour; Astrid Lenain; Pascal J. Jacques; Anne Marie Habraken;

  • 作者单位

    Department ArGEnCo, Division MS~2F, University of Liege, Chemin des Chevreuils 1, 4000 Liege, Belgium,ENSAM, Centre de Metz, 4, Rue Augustin FRESNEL, 57078 Metz Cedex 03, France;

    CENAERO - Centre de Recherches en Aeronautique, Batiment Eole, Rue des Freres Wright, 29, B-6041 Gosselies, Belgium;

    Institute of Mechanics, Materials and Civil Engineering, Universite catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium;

    Institute of Mechanics, Materials and Civil Engineering, Universite catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium;

    Techspace Aero, DT Materiaux & Procedes, Route de Liers 121, 04041 Milmort, Belgium;

    Institute of Mechanics, Materials and Civil Engineering, Universite catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium;

    Department ArGEnCo, Division MS~2F, University of Liege, Chemin des Chevreuils 1, 4000 Liege, Belgium,FNRS Fond National de la Recherche Scientifique, Belgium;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ti5553 alloy; Ti-6Al-4V alloy; Norton-Hoff model; Viscoplasticity; Anisotropy; FE simulations;

    机译：Ti5553合金;Ti-6Al-4V合金;诺顿霍夫模型;粘塑性;各向异性有限元模拟;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号