Impact Damage Characteristics of Carbon Fibre Metal Laminates: Experiments and Simulation
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University of Chester; The University of Sheffield; The University of Manchester
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In this work, the impact response of carbon fibre metal laminates (FMLs) was experimentally and numerically studied with an improved design of the fibre composite lay-up for optimal mechanical properties and damage resistance. Two different stacking sequences (Carall 3–3/2–0.5 and Carall 5–3/2–0.5) were designed and characterised. Damage at relatively low energy impact energies (≤30 J) was investigated using Ultrasonic C-scanning and X–ray Computed Tomography (X-RCT). A 3D finite element model was developed to simulate the impact induced damage in both metal and composite layers using Abaqus/Explicit. Cohesive zone elements were introduced to capture delamination occurring between carbon fibre/epoxy plies and debonding at the interfaces between aluminium and the composite layers. Carall 5–3/2–0.5 was found to absorb more energy elastically, which indicates better resistance to damage. A good agreement is obtained between the numerically predicted results and experimental measurements in terms of force and absorbed energy during impact where the damage modes such as delamination was well simulated when compared to non-destructive techniques (NDT).Citation
Shi, Y., Pinna, C., & Soutis, C. (2020). Impact Damage Characteristics of Carbon Fibre Metal Laminates: Experiments and Simulation. Applied Composite Materials, 27, 511-531.Publisher
SpringerJournal
Applied Composite MaterialsType
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1573-4897ae974a485f413a2113503eed53cd6c53
10.1007/s10443-020-09800-y
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