Scholarlink

<p>In this paper, experimental hole-making tests were conducted on CFRP/Al stacks. The effects of different stacking sequences (CFRP, CFRP/Al, Al/CFRP) on drilling temperature, thrust force, and hole-making quality were studied. The influence of hole-making damage on the residual tensile strength and strain distributions of open-hole laminates were investigated by digital image correlation and mechanical experiments. The results indicate that the drilling temperature and thrust force of laminates can be increased by adding aluminum metal layers in the process of hole-making. Compared with CFRP laminates without aluminum metal layers, the hole-making damage of CFRP/Al lamination at the exit of CFRP holes is less, and the tensile strength of the open-hole CFRP increased by 3.03%. Conversely, Al/CFRP laminates caused more severe hole-making damage at the exit of CFRP holes, and the tensile strength of the open-hole CFRP laminates decreased by 6.78%. As the degree of hole-making damage increases, the tensile strength of the laminates tends to decrease. The strain field distribution around the CFRP hole can effectively characterize the damage evolution process of the composite under tensile load.</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

Toward Understanding the Drilling Performance and Residual Tensile Strength of Laminates in Drilling of CFRP/Al Stacks

  • 期刊论文

  • 发表日期：

    2025年4月14日

查看全文
  • Yu Du,
  • Peichao Li,
  • Tao Yang,
  • Sinan Liu

摘要

In this paper, experimental hole-making tests were conducted on CFRP/Al stacks. The effects of different stacking sequences (CFRP, CFRP/Al, Al/CFRP) on drilling temperature, thrust force, and hole-making quality were studied. The influence of hole-making damage on the residual tensile strength and strain distributions of open-hole laminates were investigated by digital image correlation and mechanical experiments. The results indicate that the drilling temperature and thrust force of laminates can be increased by adding aluminum metal layers in the process of hole-making. Compared with CFRP laminates without aluminum metal layers, the hole-making damage of CFRP/Al lamination at the exit of CFRP holes is less, and the tensile strength of the open-hole CFRP increased by 3.03%. Conversely, Al/CFRP laminates caused more severe hole-making damage at the exit of CFRP holes, and the tensile strength of the open-hole CFRP laminates decreased by 6.78%. As the degree of hole-making damage increases, the tensile strength of the laminates tends to decrease. The strain field distribution around the CFRP hole can effectively characterize the damage evolution process of the composite under tensile load.