Morphological study of damage evolution in woven-laminates subjected to high-velocity impact

Abstract

The aim of this experimental work was to study the evolution of damage in woven E-glass fiber/polyester laminates of four different thicknesses. After being impacted, these plates were inspected by nondestructive inspection techniques: ultrasound by C-Scan and B-Scan and visual inspection in order to confirm the qualitative and quantitative results. The damage presented an opening cone shape towards the rear face of thin laminates. On the other hand, two different opening cones of delamination grew towards the front and rear faces after a certain thickness in thick laminates.

Keywords:

• Impact
• laminate
• damaged area
• thickness
• NDT

Acknowledgements

The authors are indebted to the University Carlos III of Madrid project: “Acción Estratégica en Materiales Compuestos y Análisis Numérico simplificado de Estructuras y protecciones ligeras sometidas a impacto balístico” (2010/00309/002) (“Strategic Action in Composite Materials and simplified Numerical Analysis of Structures and light protections subjected to ballistic impact”) for financial support for this work.

Additional information

Funding

Strategic Action in Composite Materials and simplified Numerical Analysis of Structures and light protections subjected to ballistic impacto of the University Carlos of Madrid.