High velocity impact resistance of composite materials

• Tipo: Artigo em Revista Científica Internacional
• Data: 2003

Autores

J. Justo (Autor) Outra; António Torres Marques (Autor) FEUP

Revista

Título: JOURNAL DE PHYSIQUE IV

Vol. 110

Páginas: 651-656

ISSN: 1155-4339

Editora: EDP SCIENCES S A

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-000-FB7

DOI: 10.1051/jp4:20030767

Abstract (EN): Composite materials are used in applications that require protection against high velocity impacts by fragment simulating projectiles. In this work, the ballistic performance of two commercially available materials against a fragment simulating projectile (FSP) is studied. The materials used were an aramid fiber with a phenolic matrix and a polyethylene fiber with a thermoplastic film. Impact tests have been carried out, with velocities ranging from 300 m/s to 1260m/s. The projectile used is a I. I g NATO FSP. Impact velocity and exit velocity are measured, to determine the V-50 and the energy absorbed in cases where perforation occurs. Assessment of the impact damaged area is done using ultrasonic C-scan inspection. Types of damage and damage mechanisms have been identified. Several mechanical tests have been carried out to determine the mechanical properties, at different strain rates. Future work in numerical simulation of impact will be done using commercial code Autodyn(R) from Century Dynamics.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6