Damage Control Measures in Composites: Focus on Damage Tolerance of Aerospace Structures

<p>Barely Visible Impact Damage (BVID) in composite materials presents a stealthy yet significant risk to structural integrity, particularly challenging due to its elusive nature. The approach adopted here diverges from traditional methodologies, focusing on the novel application of Digital Image Correlation (DIC) to map surface area changes during in-situ Compression After Impact (CAI) tests. This technique allows for an in-depth analysis of planar strains along the x and y axes, shedding light on the material's behavior under stress.</p> <p>A pivotal advancement lies in developing a method for precisely identifying when BVID-induced delamination recommences. By meticulously analyzing strain pattern deviations along these axes, the onset of additional damage is accurately pinpointed, significantly improving predictive capabilities for delamination due to BVID. This approach enhances the structural integrity assessment of composite materials, bolstering safety measures.</p> <p>The techniques and insights gained significantly contribute to advancing maintenance strategies and structural evaluation in aerospace composites by offering refined tools for early detection of BVID-induced damage.</p>

Name thesis:degree_name

Doctor of Philosophy in Aerospace Engineering

Level thesis:degree_level

Dissertation - Open Access

Discipline thesis:degree_discipline

Aerospace Engineering

Year

2024

Author dc:creator

• Jribi, Kais

• Barely Visible Impact Damage
• BVID
• Digital Image Correlation DIC
• Compression After Impact CAI
• Delamination
• Carbon Fiber Reinforced Polymers CFRP
• Composites
• Structures and Materials

Repository record dc:identifier

https://commons.erau.edu/edt/790

OAI identifier oai:identifier

oai:commons.erau.edu:edt-1818