Influence of fiber type on the impact response of titanium-based fiber-metal laminates

Purpose The purpose of this paper is to investigate the ballistic impact response of square clamped fiber-metal laminates and monolithic plates consisting of different metal alloys using the ANSYS LS-DYNA explicit nonlinear analysis software. The panels are subjected to central normal high velocity ballistic impact by a cylindrical projectile. Design/methodology/approach Using validated finite element models, the influence of the constituent metal alloy on the ballistic resistance of the fiber-metal laminates and the monolithic plates is studied. Six steel alloys are examined, namely, 304 stainless steel, 1010, 1080, 4340, A36 steel and DP 590 dual phase steel. A comparison with the response of GLAss REinforced plates is also implemented. Findings It is found that the ballistic limits of the panels can be substantially affected by the constituent alloy. The stainless steel based panels offer the highest ballistic resistance followed by the A36 steel based panels which in turn have higher ballistic resistance than the 2024-T3 aluminum based panels. The A36 steel based panels have higher ballistic limit than the 1010 steel based panels which in turn have higher ballistic limit than the 1080 steel based panels. The behavior of characteristic impact variables such as the impact load, the absorbed impact energy and the projectile’s displacement during the ballistic impact phenomenon is analyzed. Originality/value The ballistic resistance of the aforementioned steel fiber-metal laminates has not been studied previously. This study contributes to the scientific knowledge concerning the impact response of steel-based fiber-metal laminates and to the construction of impact resistant structures.

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Numerical modeling of the impact response of fiber-metal laminates

Polymer Composites ◽

10.1002/pc.20594 ◽

2009 ◽

Vol 30 (5) ◽

pp. 603-611 ◽

Cited By ~ 27

Author(s):

Z.W. Guan ◽

W.J. Cantwell ◽

R. Abdullah

Keyword(s):

Numerical Modeling ◽

Impact Response ◽

Fiber Metal Laminates ◽

Fiber Metal ◽

The Impact

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Residual Stresses in Intrinsic UD-CFRP-Steel-Laminates - Experimental Determination, Identification of Sources, Effects and Modification Approaches

Materials Science Forum ◽

10.4028/www.scientific.net/msf.825-826.369 ◽

2015 ◽

Vol 825-826 ◽

pp. 369-376 ◽

Cited By ~ 5

Author(s):

Robert Prussak ◽

Daniel Stefaniak ◽

Christian Hühne ◽

Michael Sinapius

Keyword(s):

Mechanical Properties ◽

Residual Stress ◽

Tensile Strength ◽

Epoxy Composite ◽

Thermal Residual Stress ◽

Fiber Metal Laminates ◽

Fiber Metal ◽

Impact Energies ◽

The Impact ◽

Specific Impact

This paper focuses on the reduction of process-related thermal residual stress in fiber metal laminates and its impact on the mechanical properties. Different modifications during fabrication of co-cure bonded steel/carbon epoxy composite hybrid structures were investigated. Specific examinations are conducted on UD-CFRP-Steel specimens, modifying temperature, pressure or using a thermal expansion clamp during manufacturing. The impact of these parameters is then measured on the deflection of asymmetrical specimens or due yield-strength measurements of symmetrical specimens. The tensile strength is recorded to investigate the effect of thermal residual stress on the mechanical properties. Impact tests are performed to determine the influence on resulting damage areas at specific impact energies. The experiments revealed that the investigated modifications during processing of UD-CFRP-Steel specimens can significantly lower the thermal residual stress and thereby improve the tensile strength.

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The High Velocity Impact Response of Novel Fiber Metal Laminates

10.1115/imece2001/amd-25423 ◽

2001 ◽

Author(s):

Wesley J. Cantwell ◽

Graham Wade ◽

J. Fernando Guillen ◽

German Reyes-Villanueva ◽

Norman Jones ◽

...

Keyword(s):

High Velocity ◽

Impact Resistance ◽

High Velocity Impact ◽

Fiber Metal Laminates ◽

Velocity Impact ◽

Glass Fiber Reinforced ◽

Fiber Metal ◽

Energy Absorbing ◽

Dynamic Loading Conditions ◽

The Impact

Abstract The impact resistance of a range of novel fiber metal laminates based on polypropylene, polyamide and polyetherimide matrices has been investigated. Initial attention focused on optimizing the interface between the composite and aluminum alloy constituents. Here, it was shown that composite-metal adhesion was excellent in all systems examined. In addition, tests at crosshead displacement rates up to 3 m/s indicated that the interfacial fracture energies remained high under dynamic loading conditions. High velocity impact tests on a series of 3/2 laminates (3 layers of aluminum/2 layers of composite) highlighted the outstanding impact resistance of a number of these systems. The glass fiber reinforced polypropylene system offered a particularly high impact resistance exhibiting a perforation energy of approximately 160 Joules. Here, failure mechanisms such as extensive plastic drawing in the aluminum layers and fiber fracture in the composite plies were found to contribute to the excellent energy-absorbing characteristics of these systems.

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The fracture properties of fiber metal laminates based on a 3D printed glass fiber composite

Journal of Thermoplastic Composite Materials ◽

10.1177/0892705720976179 ◽

2020 ◽

pp. 089270572097617

Author(s):

B Yelamanchi ◽

E MacDonald ◽

NG Gonzalez-Canche ◽

JG Carrillo ◽

P Cortes

Keyword(s):

3D Printing ◽

Glass Fiber ◽

High Velocity ◽

Metal Composite ◽

High Velocity Impact ◽

Fiber Metal Laminates ◽

Velocity Impact ◽

Impact Performance ◽

Fiber Metal ◽

The Impact

Fiber Metal Laminates (FML) are structures that contain a sequential arrangement of metal and composite materials, which are of great interest to the aerospace sector due to the superior mechanical performance. The traditional manufacturing process for FML involves considerable investment in manufacturing resources depending on the design complexity of the desired components. To mitigate such limitations, 3D printing enables direct digital manufacturing to create FML with customized configurations. In this work, a preliminary mechanical characterization of additively-manufacturing-enabled FML has been investigated. A series of continuous glass fiber-reinforced composites were printed with a Markforged system and placed between layers of aluminum alloy to manufacture hybrid laminate structures. The laminates were subjected to tensile, interfacial fracture toughness, and both low-velocity and high-velocity impact tests. The results showed that the FMLs appear to have a good degree of adhesion at the metal-composite interface, although a limited intralaminar performance was recorded. It was also observed that the low and high-velocity impact performance of the FMLs was improved by 9–13% relative to that of the constituent elements. The impact performance of the FML appeared to be related to the fiber fracture, out of plane perforation and interfacial delamination within the laminates. The present study can provide an initial research foundation for considering 3D printing in the production of hybrid laminates for static and dynamic applications.

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