Impact damage resistance of thin stitched carbon/epoxy laminates

11th International Conference on Damage Assessment of Structures

物理学;材料科学

Francesconi, L.^1 ; Aymerich, F.^1

Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, Cagliari

09123, Italy^1

关键词: Carbon/epoxy laminates;    Experimental analysis;    Impact damage resistance;    Instrumented impact test;    Low velocity impact;    Stitched laminates;    Through-thickness;    Through-thickness reinforcements;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/628/1/012099/pdf
DOI  :  10.1088/1742-6596/628/1/012099

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The study examines the influence of through-thickness stitching on the damage response of thin cross-ply carbon/epoxy laminates subjected to low-velocity impacts. Instrumented impact tests were carried out on unstitched and polyethylene stitched laminates and the resulting damage was assessed in detail by X-radiography analyses. The results of the observations carried out during the experimental analyses are illustrated and discussed to identify the mechanical role played by through-thickness reinforcement and to highlight the influence of the laminate layup on the impact resistance of stitched laminates.