Comparison of Non-Destructive Techniques for Impact Damage Area Assessment in Aramid/Epoxy Composites

Proceedings

González-Jiménez, Álvaro¹  Nunes, Stephanie²  Manes, Andrea³  Amico, Sandro⁴ 

[1] Author to whom correspondence should be addressed.;PPGE3M, Federal University of Rio Grande do Sul, Porto Alegre 91501-970, Brazil;Politecnico di Milano, Department of Mechanical Engineering, 20156 Milano, Italy;Presented at the 18th International Conference on Experimental Mechanics (ICEM18), Brussels, Belgium, 1–5 July 2018

关键词: impact;    thermography;    aramid;    digital X-ray radiography;   

DOI  :  10.3390/ICEM18-05320

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

This research focused on the assessment of the damaged area on aramid/epoxy composites subjected to high velocity impact. Digital X-ray radiography and active pulsed thermography techniques were used for performing post-mortem analysis of the impacted specimens (8 to 28 aramid layers). Two types of projectiles were used: 9 mm Luger FMJ and 0.357 Magnum FMJ. Two types of dedicated algorithms were developed to post-process the thermograms obtained and the results are compared with the damaged diameter measured directly on the X-ray radiographs. The output of the three methods are therefore compared and discussed.

【 授权许可】

CC BY