Scholarlink

<p>A&#xa0;method for modeling the mechanical characteristics of porous bodies by uniform functions is proposed. This method is based on the basic principles of the mechanics of plastic deformation of porous bodies. It enables the obtaining of reliable porosity models for the studied material by refining theoretical functions with experimental data obtained during the axisymmetric pressing of cylindrical samples, performed without friction at the ends. Based on the theoretical studies conducted, such models for copper-based materials were obtained. Samples of copper powder with different initial porosities were studied. As a&#xa0;result of experimental data processing, final expressions for porosity models of the copper powder workpiece material were obtained. A&#xa0;method for calculating the accumulated deformation of the base material was also developed. Flow curves for copper-based powder materials were built.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Modeling of mechanical characteristics of copper-based powder materials under their plastic forming to control porosity

  • 期刊论文

  • 发表日期：

    2025年9月23日

查看全文
  • R. I. Sivak,
  • L. K. Polishchuk,
  • G. Xianan

摘要

A method for modeling the mechanical characteristics of porous bodies by uniform functions is proposed. This method is based on the basic principles of the mechanics of plastic deformation of porous bodies. It enables the obtaining of reliable porosity models for the studied material by refining theoretical functions with experimental data obtained during the axisymmetric pressing of cylindrical samples, performed without friction at the ends. Based on the theoretical studies conducted, such models for copper-based materials were obtained. Samples of copper powder with different initial porosities were studied. As a result of experimental data processing, final expressions for porosity models of the copper powder workpiece material were obtained. A method for calculating the accumulated deformation of the base material was also developed. Flow curves for copper-based powder materials were built.