Scholarlink

Auxetic structures with negative values of Poisson’s ratio attract attention due to their surprising deformation response, durability under long-term loading and energy absorption properties. In this work, different 3D-printed specimens with the internal auxetic structure were investigated in real time during flexural tests by means of shearography. The 3D printed specimens have been mechanically characterized by performing flexural tests according to the ASTM D790 standard in order to investigate the effect of the new manufacturing process on the flexural strength and modulus. The lateral face of the specimens was monitored in real time during the test. The preliminary results showed the points of greatest stress where the specimens starts to fail. This information can be useful to understand the behaviour of the investigated structures in order to improve geometries and printing processes.

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

Real-Time Shearography Measurements of 3D Printed Auxetic Specimens During Flexural Tests

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • V. Pagliarulo,
  • C. Saltarelli,
  • M. Paturzo,
  • I. Papa,
  • F. Napolitano,
  • P. Russo

摘要

Auxetic structures with negative values of Poisson’s ratio attract attention due to their surprising deformation response, durability under long-term loading and energy absorption properties. In this work, different 3D-printed specimens with the internal auxetic structure were investigated in real time during flexural tests by means of shearography. The 3D printed specimens have been mechanically characterized by performing flexural tests according to the ASTM D790 standard in order to investigate the effect of the new manufacturing process on the flexural strength and modulus. The lateral face of the specimens was monitored in real time during the test. The preliminary results showed the points of greatest stress where the specimens starts to fail. This information can be useful to understand the behaviour of the investigated structures in order to improve geometries and printing processes.