Presenter(s)
Youyi Zhou
Abstract
Low-velocity impact properties and residual compression strength after impact performance are used to evaluate composite materials for many applications. In this research, low-velocity drop-weight impact and compression after impact performance of four continuous fiber reinforcement thermoplastic (CFRTP) composites are investigated. Quasi-isotropic samples of GF/PP, CF-PA12, CF-PA6, GF-PA6 were fabricated and tested according to ASTM standards. Three energy levels of 10, 15, and 20 J/mm, were employed in this research. Results indicate that GF/PP exhibits the highest damage resistance and rebound-ability, evidenced by its minimal indentation and damage area, the highest significant damage threshold force, and the highest ratio of impact elasticity to impact energy. It was followed by CF/PA12, CF/PA6, and GF/PA6. However, the GF/PP compression after impact properties were the lowest among the four materials, especially at higher impact energy. In general, CFRTP composites show a high tolerance to impact energy. At low impact energy levels, 10 to 20 m/s, GF/PP shows higher damage resistance followed by CF/PA12, CF/PA6, and GF/PA6, respectively. CF/PA6 and CF/PA12 exhibited higher compression strength after impact than GF/PP and GF/PA6.
College
College of Science & Engineering
Department
Composite Materials Engineering
Campus
Winona
First Advisor/Mentor
Beckry Abdel-Magid
Start Date
4-18-2024 10:00 AM
End Date
4-18-2024 11:00 AM
Presentation Type
Poster Session
Format of Presentation or Performance
In-Person
Session
1b=10am-11am
Poster Number
59
Included in
Low-Velocity Drop Weight Impact and Compression after Impact Properties of Symmetric Quasi-Isotropic CFRTP Composites
Low-velocity impact properties and residual compression strength after impact performance are used to evaluate composite materials for many applications. In this research, low-velocity drop-weight impact and compression after impact performance of four continuous fiber reinforcement thermoplastic (CFRTP) composites are investigated. Quasi-isotropic samples of GF/PP, CF-PA12, CF-PA6, GF-PA6 were fabricated and tested according to ASTM standards. Three energy levels of 10, 15, and 20 J/mm, were employed in this research. Results indicate that GF/PP exhibits the highest damage resistance and rebound-ability, evidenced by its minimal indentation and damage area, the highest significant damage threshold force, and the highest ratio of impact elasticity to impact energy. It was followed by CF/PA12, CF/PA6, and GF/PA6. However, the GF/PP compression after impact properties were the lowest among the four materials, especially at higher impact energy. In general, CFRTP composites show a high tolerance to impact energy. At low impact energy levels, 10 to 20 m/s, GF/PP shows higher damage resistance followed by CF/PA12, CF/PA6, and GF/PA6, respectively. CF/PA6 and CF/PA12 exhibited higher compression strength after impact than GF/PP and GF/PA6.
