Failure modes in a carbon / titanium fibre metal laminate under hyper-velocity impact

2019 ◽  
Vol 125 ◽  
pp. 180-187 ◽  
Author(s):  
G. Corderley ◽  
F. Mostert ◽  
J.J. Krüger
Keyword(s):  
Failure Modes ◽  
Velocity Impact ◽  
Fibre Metal ◽  
Fibre Metal Laminate ◽  
Titanium Fibre

scholarly journals Predicting interlaminar damage behaviour of fibre-metal laminates containing adhesive joints under bending loads

2021 ◽  
pp. 073168442110517
Author(s):  
Ahmad SM Al-Azzawi ◽  
Luiz F Kawashita ◽  
Carol A Featherston
Keyword(s):  
Cohesive Zone ◽  
Failure Modes ◽  
Cohesive Zone Model ◽  
Adhesive Joints ◽  
Interfacial Shear ◽  
Zone Model ◽  
Shear Stresses ◽  
Bending Loads ◽  
Fibre Metal ◽  
Fibre Metal Laminate

This study includes experimental and numerical investigations on fibre-metal laminate structures containing adhesive joints under static bending loads. Experimental tests were carried out on Glare® 4B specimens manufactured in-house and containing doubler joint features. Numerical analyses were performed using Abaqus software including damage in the glass fibre reinforced polymer layers, ductile damage in the resin pockets (FM94 epoxy) and plasticity in the metal layers. A new cohesive zone model coupling friction and interfacial shear under through-thickness compressive stress has been developed to simulate delamination initiation and growth at the metal/fibre interfaces with the adhesive joint under flexural loading. This model is implemented through a user-defined VUMAT subroutine in the Abaqus/Explicit software and includes two main approaches, firstly, combining friction and interfacial shear stresses created in the interlaminar layers of the fibre-metal laminate as a result of through-thickness stresses and secondly, considering elastic-plastic damage behaviour using a new cohesive zone model based on the trapezoidal law (which provides more accurate results for the simulation of toughened epoxy matrices than the commonly used bilinear cohesive zone model). Numerical results have been validated against experimental data from 4-point bending tests and a good correlation observed with respect to both crack initiation and evolution. Delamination and shear failure were noted to be the predominant failure modes under bending stresses as expected. This is due to the higher mode-II stresses introduced during bending which cause different damage evolution behaviour to that seen for axial stresses. Finite element results revealed that both friction and shear strength parameters generated from through-thickness compression stresses have a significant effect in predicting damage in fibre-metal laminate structures under this type of loading.

Low-velocity impact on square sandwich plates with fibre-metal laminate face-sheets: Analytical and numerical research

2021 ◽  
Vol 259 ◽  
pp. 113461
Author(s):  
Jianxun Zhang ◽  
Qinghua Qin ◽  
Jiangtao Zhang ◽  
Hui Yuan ◽  
Jinlong Du ◽  
...  
Keyword(s):  
Low Velocity Impact ◽  
Sandwich Plates ◽  
Low Velocity ◽  
Velocity Impact ◽  
Numerical Research ◽  
Fibre Metal ◽  
Fibre Metal Laminate

scholarly journals Low-velocity impact behaviours of AFP manufactured fibre metal laminate structures

2021 ◽  
Author(s):  
A. Serubibi ◽  
P.J. Hazell ◽  
J.P. Escobedo ◽  
H. Wang ◽  
E. Oromiehie ◽  
...  
Keyword(s):  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Fibre Metal ◽  
Fibre Metal Laminate

Simulations of Low-Velocity Impact on Fibre Metal Lanimate

2015 ◽  
Vol 813 ◽  
pp. 63-71
Author(s):  
Yun Wan ◽  
Hao Jiang ◽  
Zhen Qing Wang ◽  
Li Min Zhou
Keyword(s):  
Contact Force ◽  
Failure Modes ◽  
Hybrid Composites ◽  
Low Velocity Impact ◽  
Absorbed Energy ◽  
Low Velocity ◽  
Velocity Impact ◽  
Mesh Density ◽  
Fibre Metal ◽  
Simulation Results

During the last decades the application of composite materials in various structures has become increasingly popular. Advanced hybrid composites are useful in marine and aerospace engineering. In this contribution, impact response and damage process by a drop-weight instrument on glass reinforced (GLARE) 5 fibre-metal laminates (FMLs) with different impacted energy were presented. After comparing and analyzing the histories of contact force, central displacement, absorbed energy and force-deflection for GLARE 5 (2/1) with impacted energy of 8J, 10J and 15J, respectively. The fact that aluminium layers play an important role in absorbing energy was proved. Moreover, A numerical methodology including user material subroutine VUMAT, Johnson–Cook flow stress model is employed to simulate the response of the contact force, deflection, absorbed energy and corresponding failure modes in low-velocity impact of FML. After comparing the five simulation results with different mesh density, the influence of mesh density on simulation results was investigated and presented. The optimalizing mesh size which considered both computational efficiency and accuracy was found.

A Study of the Effect of Process Variables on the Stamp Forming of Rectangular Cups Using Fibre-Metal Laminate Systems

2005 ◽  
Vol 6-8 ◽  
pp. 649-656 ◽  
Author(s):  
L. Mosse ◽  
Wesley J. Cantwell ◽  
M.J. Cardew-Hall ◽  
Paul Compston ◽  
Shankar Kalyanasundaram
Keyword(s):  
Failure Modes ◽  
Heating Temperature ◽  
Material System ◽  
Process Variables ◽  
Stamping Process ◽  
Material Systems ◽  
Stamp Forming ◽  
Fibre Metal ◽  
Fibre Metal Laminate

The quality of the part and the robustness of the process in stamp-forming of sheet materials are determined by a number of variables. This study looks at the application of the stamping process to a Fibre-Metal Laminate (FML) material system and the effect of the process variables on the formability characteristics of these material systems. The effect of pre-heating temperature on the splitting and wrinkling behaviour has been investigated for two different FML systems. It has been found that different FML systems exhibit different failure modes.

An integrated study on the low-velocity impact response of the GLARE fibre-metal laminate

2013 ◽  
Vol 100 ◽  
pp. 89-103 ◽  
Author(s):  
F.D. Morinière ◽  
R.C. Alderliesten ◽  
M. Sadighi ◽  
R. Benedictus
Keyword(s):  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Fibre Metal ◽  
Fibre Metal Laminate ◽  
Integrated Study

Response and failure modes of biaxial warp-knitted flexible composite subject to low-velocity impact

2021 ◽  
pp. 152808372110154
Author(s):  
Ziyu Zhao ◽  
Tianming Liu ◽  
Pibo Ma
Keyword(s):  
Impact Energy ◽  
Linear Density ◽  
Failure Modes ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Minor Effect ◽  
Low Velocity ◽  
Velocity Impact ◽  
Flexible Composites ◽  
The Impact

In this paper, biaxial warp-knitted fabrics were produced with different high tenacity polyester linear density and inserted yarns density. The low-velocity impact property of flexible composites made of polyurethane as matrix and biaxial warp-knitted fabric as reinforcement has been investigated. The effect of impactor shape and initial impact energy on the impact response of flexible composite is tested. The results show that the initial impact energy have minor effect on the impact response of the biaxial warp-knitted flexible composites. The impact resistance of flexible composite specimen increases with the increase of high tenacity polyester linear density and inserted yarns density. The damage morphology of flexible composite materials is completely different under different impactor shapes. The findings have theoretical and practical significance for the applications of biaxial warp-knitted flexible composite.

Investigation of a new fibre metal laminate (FML) family on the base of Al-Li-Alloy with lower density

2012 ◽  
Vol 43 (4) ◽  
pp. 350-355 ◽  
Author(s):  
V.V. Antipov ◽  
O.G. Senatorova ◽  
T. Beumler ◽  
M. Ijpma
Keyword(s):  
Fibre Metal ◽  
Fibre Metal Laminate
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