Tension-Compression Asymmetry of Creep and Unilateral Creep Damage in Aluminum for Isothermal and Nonisothermal Processes

スポンサーリンク

概要

• 論文の詳細を見る

• A constitutive model is proposed to describe the damage development in aluminum alloys under creep conditions for both isothermal and nonisothermal processes. Special emphasis is laid on four specific phenomena : tension-compression asymmetry of creep, damage induced anisotropy, unilateral creep damage and damage deactivation. Within the framework of the phenomenological approach in the Continuum Damage Mechanics, the nonlinear tensor constitutive equation for creep deformation and damage evolution equation are proposed to account for different orientation of microcracks in aluminum alloys under tensile and compressive loading types. After a determination of the material parameters in the obtained constitutive equation and damage growth equation, the proposed model is applied to the describing creep behavior of the aluminum alloy under uniaxial nonproportional and multiaxial nonproportional loading for both isothermal and nonisothermal processes.

• 一般社団法人日本機械学会の論文
• 2001-01-15

著者

• Zolochevsky A

  Department Of Mechanical Engineering Fukui University

• Obataya Yoichi

  Department Of Mechanical Engineering Fukui University

• Obataya Yoichi

  Department Of Mechanical Engineering Faculty Of Engineering Fukui University

• ZOLOCHEVSKY Alexander

  Department of Mechanical Engineering, Fukui University

関連論文

• New Development of the Multiple Strata Plasticity Model
• Tension-Compression Asymmetry of Creep and Unilateral Creep Damage in Aluminum for Isothermal and Nonisothermal Processes

スポンサーリンク