Numerical and experimental evaluations of a glass-epoxy composite material under high velocity oblique impacts

Key, Christopher T.; Alexander, C. Scott

doi:10.1016/j.ijimpeng.2019.103443

Cited by 15 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At present, some scholars have conducted some research on the oblique penetration resistance of some fiber reinforced composite panels with similar performance to UHMWPE laminates. [15][16][17] For example, L opez-Puente et al 18 carried out 0 and 45 impact tests on carbon fiber reinforced composite panels, and found that the failure mode of the composite panels changed at the conditions of under and above the ballistic threshold. When the impact velocity was less than the ballistic limit velocity, the main damage form of the composite panel was delamination damage, while when the impact velocity was greater than the ballistic limit, the composite panel appeared perforation damage.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the complexity of high‐velocity oblique penetration of target plate, the existing research on the oblique penetration of UHMWPE laminates is still marginal. At present, some scholars have conducted some research on the oblique penetration resistance of some fiber reinforced composite panels with similar performance to UHMWPE laminates 15–17 . For example, López‐Puente et al 18 carried out 0° and 45° impact tests on carbon fiber reinforced composite panels, and found that the failure mode of the composite panels changed at the conditions of under and above the ballistic threshold.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on the resistance of UHMWPE laminates against oblique penetration of projectiles

Guo,

Song,

Sun

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

To solve the problem of the wall panel of high‐performance shelters protecting against the oblique penetration of projectiles, ballistic experiments were carried out with ultra‐high molecular weight polyethylene (UHMWPE) laminates subjected to normal penetration by high‐velocity projectiles, and the deformation and failure characteristics of UHMWPE laminates were analyzed. The numerical model of the resistance of UHMWPE laminates against penetration of projectiles was established by using the finite element program LS‐DYNA. The validity of the numerical model was verified by the experimental results of damage morphology and the depth of depression of the target plate and the deformation of the warhead. On this basis, the ricochet angle and failure mode of the UHMWPE target plate against projectile penetration were studied numerically, and the impact of the angle of incidence on the residual kinetic energy and normal penetration displacement of the bullet, as well as the damage morphology of the UHMWPE target plate, was revealed by using simulation. The results showed that the ricochet angle of the bullet obliquely penetrating into the UHMWPE target plate was in the range of 45° to 50°; at the initial stage of projectile penetration, the shear fracture failure of the fiber layer mainly occurred at the striking face of the UHMWPE target plate. Under the impact of the warhead deformation, with the reduction of the residual velocity of the bullet, the failure mode gradually changed to the tensile and interlaminar cohesion failure of the fiber layer near the back face; When the angle of incidence was greater than the ricochet angle, the residual kinetic energy of the projectile increased slowly with the increase of the angle of incidence of the bullet and then went up approximately linearly; the normal displacement of the bullet obliquely penetrating into the UHMWPE target plate decreased slowly after reaching the peak, and the peak value of the normal penetration displacement decreased gradually with the increase of the angle of incidence, and the time to peak of the displacement shortened gradually. The damage area of the bulge on the back surface of the UHMWPE target plate after penetration decreased gradually with the increase of the angle of incidence. The research results can provide a theoretical reference for the application of UHMWPE laminates in the design of military bulletproof shelters and armor.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the resistance of UHMWPE laminates against oblique penetration of projectiles

Guo,

Song,

Sun

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

show abstract

Study on ballistic penetration behavior of unidirectional UHMWPE/carbon fiber composites: Experiments and numerical modeling

Tai,

Wu,

Han

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

Hybrid fiber reinforced composites leverage the advantages of various material properties to enhance ballistic protection efficiency. This paper investigates the ballistic penetration behavior of UHMWPE and UHMWPE/carbon fiber reinforced composites. By conducting ballistic experiments and finite element simulations, the failure behaviors of bulletproof composites are analyzed. Continuum models and mesoscale models were established to predict the V‐50 and impact damage of composites. The mesoscale model includes the geometric shapes of fibers and matrix, fiber volume fraction and failure behavior. Compared with experimental results, the mesoscale model predicted the V‐50 with a minimum deviation of 3%. The main damage patterns, including fiber breakage, matrix cracking and delamination, are displayed in the post‐impact morphology and models of bulletproof composites. Mesoscale models are used to describe energy dissipation and microstructure behavior, while homogenized continuum models are employed to observe macroscopic damage. Both simulations and experiments indicated that the overall structure and inherent properties affect stress transfer, damage mode and energy dissipation mechanisms during bullet impact processes. The combination of both two models deepens the understanding of the ballistic performance and damage evolution of fiber composites, providing novel insights for improving ballistic performance in fiber composites.Highlights Uniform continuous model and the mesoscale model were combined to explore the impact damage. Analysis of the energy consumption of each component in a ballistic impact. Effect of hybrid construction on impact performance.

show abstract

Impact-Induced Through-Thickness Stress Wave Propagation and Damage in Woven Composites

Meyer

Haque²,

Gillespie³

2022

J. dynamic behavior mater.

View full text Add to dashboard Cite

Numerical and experimental evaluations of a glass-epoxy composite material under high velocity oblique impacts

Cited by 15 publications

References 15 publications

Study on the resistance of UHMWPE laminates against oblique penetration of projectiles

Study on the resistance of UHMWPE laminates against oblique penetration of projectiles

Study on ballistic penetration behavior of unidirectional UHMWPE/carbon fiber composites: Experiments and numerical modeling

Impact-Induced Through-Thickness Stress Wave Propagation and Damage in Woven Composites

Contact Info

Product

Resources

About