Article
Mechanics
M. Rathnasabapathy, A. P. Mouritz, A. C. Orifici
Summary: The study found that the amount of impact damage and post-impact compressive strength of the fibre metal laminate (FML) depended on the type and magnitude of the preload under different loading conditions. More severe damage was induced under tension preload, with greater reduction in post-impact strength compared to compression.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Manufacturing
Drew E. Sommer, D. Thomson, O. Falco, G. Quino, H. Cui, N. Petrinic
Summary: This study investigates the impact response of angle-ply carbon fibre reinforced polymer (CFRP) crush tubes using experimental testing and numerical simulations. The results show that interlaminar friction between delaminated plies plays a significant role in energy dissipation.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Composites
M. Erfan Kazemi, Victor Medeau, Lorenzo Mencattelli, Emile Greenhalgh, Paul Robinson, James Finlayson, Silvestre T. Pinho
Summary: We introduce novel zone-based hybrid laminate concepts to enhance the high-velocity impact (HVI) response of baseline carbon fibre-reinforced polymer (CFRP) composites. By keeping approximately 80% of the baseline CFRP mass in the hybrid concepts, similar areal weights and substantial in-plane mechanical properties are maintained. Three zones are identified along the laminate thickness, and tailored materials are incorporated to improve the HVI response. Various materials, including carbon (thin- and thick-plies), glass, Zylon, ultra-high molecular weight polyethylene (UHMWPE), shape memory alloy/carbon fabric, and ceramic, alumina, and titanium sheets, are studied. All laminate concepts have comparable areal weights for meaningful comparison. Experimental results demonstrate up to 95% improvement in energy dissipation compared to the baseline quasi-isotropic (QI) CFRP configuration.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Composites
Rui He, Longfei Cheng, Yidi Gao, Hao Cui, Yulong Li
Summary: This paper investigates the effect of in-plane shear stress on the fiber kinking compressive fracture toughness of laminates using compact compression specimens with off-axis fibers. The results show that in-plane shear stress increases the values of the R-curves, leading to an increase in energy dissipation. Microscopic morphology reveals the increasing splitting of fiber bundles and subsequent fiber compression failure as the off-axis angle of the fibers increases.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Mechanics
S. L. J. Millen, Z. Ullah, B. G. Falzon
Summary: The finite element mesh aligned along the fibre direction is crucial in predicting damage accurately, especially in the presence of cracks. However, when matrix crack paths are not established a priori or may not be the dominant damage mode, fibre mesh alignment is unnecessary.
COMPOSITE STRUCTURES
(2021)
Review
Materials Science, Composites
Sasanka Kakati, Debabrata Chakraborty
Summary: This paper provides a detailed review of the response of fibre metal laminates (FMLs) under low-velocity impact, discussing the influences of geometrical and material parameters, comparing numerical and analytical models, and suggesting potential areas of future research for improving FML performance.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Article
Engineering, Multidisciplinary
S. Horta Munoz, M. C. Serna Moreno
Summary: The tension-compression biaxial test using +/- 45 degrees symmetric angle-ply laminates is suitable for determining the in-plane pure shear response of a lamina. The stress-strain evolution shows a linear stage followed by an inelastic region with high shear deformations. Digital Image Correlation (DIC) measures a pure and homogeneous shear strain state during the linear stage and records the initiation of a shear band at 45 degrees from the loaded directions. It is concluded that uniaxial tensile tests may provide a better approximation of the shear elastic modulus than uniaxial compressive tests if the material has higher tensile than compressive elastic properties.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
M. C. Serna Moreno, S. Horta Munoz
Summary: The study investigates the strain capacity of symmetric +/- 45 degrees angle-ply laminates of carbon fibre reinforced polymer under uniaxial tensile and compressive loading. The mechanical response shows a three-staged stress-strain behavior with progressive damage during the linear and plateau stages. However, the third stage of strain hardening does not follow the same pattern due to microstructural changes in the matrix. Differences between tension and compression loading cases are observed through the final failure modes.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Automation & Control Systems
Alice Proietti, Fabrizio Quadrini, Nicola Gallo, Loredana Santo
Summary: Hybrid carbon fibre-reinforced laminates were manufactured by recycling waste CFR laminates and using compression moulding. The waste CFR laminates were thermomechanically disassembled into single TS plies and then reassembled with a TP interlayer. The optimal compression moulding process and the effect of TP-TS hybridization were evaluated through extensive experimental tests, resulting in a hybrid laminate with bending strength and bending modulus at 47% and 54% of the virgin laminate, respectively.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Construction & Building Technology
Li Min, Dilum Fernando, Michael Heitzmann, Chuang Miao
Summary: Hybrid fibre reinforced polymer-timber thin-walled structural members offer a sustainable alternative to light-weight steel and aluminium. The study investigated the effect of manufacturing pressure and fibre type on mechanical properties, finding the best parameters depended on the type of load applied. Classic laminate theory was accurate for membrane properties but inaccurate for flexural properties of HFT laminates.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Composites
J. L. Liu, J. Zhi, H. L. Wong, E. S. Sugeng, T. E. Tay, V. B. C. Tan
Summary: The effect of ply blocking on high-speed impact of CFRP laminates is investigated. It is found that ply blocking significantly affects the ballistic limit and modes of damage. As the level of ply blocking increases, resistance to fiber damage increases but it becomes easier for projectiles to slip through between fibers. A new laminate layup is designed to mitigate the effects of ply blocking.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Mechanics
Jing Sun, Shanqing Xu, Guoxing Lu, Dong Ruan, Qing Wang
Summary: This paper experimentally investigated the influence of strain rate on the tensile failure and mechanical response of self-made titanium- and aluminium-based FMLs. The results showed that titanium-based FMLs exhibited two-stage stress-strain curves, while aluminium-based FMLs showed three-stage failure patterns. The strain rate had negligible influence on the Young's modulus, tensile strength, and energy absorption capacity of titanium-based FMLs, but slightly affected those of aluminium-based FMLs. Titanium-based FMLs had higher specific tensile strength but lower specific energy absorption than aluminium-based FMLs at all strain rates.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Multidisciplinary
L. Manseri, P. Navarro, O. Dorival, S. Marguet, B. Mahmoud, J-F Ferrero
Summary: The article introduces a new intralaminar interface to extend the semi-continuous strategy for impacts on thick composite laminates, showing good agreement between simulation results and experiments in terms of damage sizes and load-displacement curves.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Mechanics
Jianxun Zhang, Qinghua Qin, Jiangtao Zhang, Hui Yuan, Jinlong Du, Hua Li
Summary: This study investigates the low-velocity impact on clamped square sandwich plates composed of a metal foam core and fibre-metal laminate face-sheets using analytical and numerical methods. The impact behavior is formulated based on a modified rigid-plastic material approximation, with numerical simulations conducted and compared with analytical results. The influences of material parameters and impact location on dynamic behaviors are discussed in detail, providing an efficient and simple analytical method for predicting low-velocity impact on square FML sandwich plates.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Composites
Piotr Bajurko
Summary: The research compared the resistance to damage of thermosetting and thermoplastic fabric carbon composites, finding that the thermoplastic laminate has higher residual strength with lower impact energy, which decreases as impact energy increases.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2021)
Article
Materials Science, Characterization & Testing
Patryk Jakubczak, Davide Nardi, Jaroslaw Bienias, Jos Sinke
Summary: In this research, ultrasonic inspections were conducted on Glare with pre-preg gaps to enhance the current technological level. By introducing gaps, performing ultrasonic testing, and collecting cross-sectional images of the laminate, a detailed assessment of the width, depth, and occurrence of the gaps was successfully achieved.
NONDESTRUCTIVE TESTING AND EVALUATION
(2021)
Article
Engineering, Mechanical
Jaroslaw Bienias, Konrad Dadej
INTERNATIONAL JOURNAL OF FATIGUE
(2020)
Article
Chemistry, Physical
Patryk Jakubczak, Jaroslaw Bienias, Magda Drozdziel, Piotr Podolak, Aleksandra Harmasz
Article
Mechanics
Patryk Jakubczak, Jaroslaw Bienias, Konrad Dadej
COMPOSITE STRUCTURES
(2020)
Article
Chemistry, Physical
Jaroslaw Bienias, Patryk Jakubczak, Magda Drozdziel, Barbara Surowska
Article
Mechanics
Patryk Jakubczak
Summary: This study compared the response of Aluminium/Thin-Ply-Glass laminates and conventional Aluminium/Glass laminates to impact, finding similar failure mechanisms but differences in individual failure modes that may affect damage propagation. The earlier perforation initiation of thin-ply FMLs is attributed to the domination of bending stress over tensile stress.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
M. Drozdziel, P. Jakubczak, J. Bienias
Summary: This study investigates the low-velocity impact resistance of fibre metal laminates with thin-ply carbon fiber reinforced polymer compared to conventional thickness plies. The results show that the thin-ply material does not significantly improve impact resistance or change impact response compared to conventional ply thickness. The damage mechanism between thin-ply composite and conventional carbon plies are also found to be similar.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Civil
Barbara Surowska, Konrad Dadej, Patryk Jakubczak, Jaroslaw Bienias
Summary: The paper presents an experimental analysis of the combined mechanical and environmental long-term behavior of carbon-based fibre metal laminates with protective glass layers. The tested laminates showed a stable stiffness reduction with increasing fatigue cycles, with laminates featuring glass protectors exhibiting nine times fewer fatigue cycles after thermal cycling.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2021)
Article
Mechanics
Magda Drozdziel, Piotr Podolak, Pawel Czapski, Piotr Zgorniak, Patryk Jakubczak
Summary: Fibre reinforced polymers are commonly used in the manufacturing of thin-walled structures for their favorable mechanical properties. The study analyzed the failure mechanisms in thin-walled composite columns, noting that delamination is the dominant form of damage. Additional important failure initiation mechanisms, such as stepped cracks and fibre rupture, were also observed depending on the curing parameters and geometrical concepts.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
P. Jakubczak, J. Bienias
Summary: The study evaluates the hybrid titanium carbon laminate resistance to dynamic loads through various criteria, and analyzes the damage mechanism. The experimental results indicate that the proportion of absorbed energy increases with the increasing impact energy.
ENGINEERING FRACTURE MECHANICS
(2021)
Article
Mechanics
Magda Drozdziel, Piotr Podolak, Davide Nardi, Patryk Jakubczak
Summary: This study evaluates the impact of kissing bonding defects on FML, revealing significant effects on the mechanical properties of FML and potential failure patterns such as interlayer fracture and translaminar fiber crack.
COMPOSITE STRUCTURES
(2021)
Article
Chemistry, Physical
Patryk Jakubczak, Magda Drozdziel, Piotr Podolak, Jesus Pernas-Sanchez
Summary: By combining fibre metal laminates (FML) with sandwich structures, the impact performance of FMLs can be significantly improved by enhancing energy absorption mechanisms. The failure mechanism of fibre foam laminates mainly involves delaminations and matrix cracks, while conventional fibre metal laminates primarily experience fibre cracking due to high stress concentrations. This difference leads to a better after-impact resistance of fibre foam metal laminates, improving the safety of structures manufactured with these materials.
Article
Mechanics
Pawel Czapski, Patryk Jakubczak, Alexander J. G. Lunt, Filip Kazmierczyk, Mariusz Urbaniak, Tomasz Kubiak
Summary: The study provides a comprehensive investigation of thin-walled, carbon fibre square-section columns under static compression, highlighting the significant enhancement of buckling load performance by residual stresses. The models show good agreement with experimental results.
COMPOSITE STRUCTURES
(2021)
Article
Chemistry, Physical
Piotr Podolak, Magda Drozdziel-Jurkiewicz, Patryk Jakubczak, Jaroslaw Bienias
Summary: An experimental analysis was conducted to evaluate the mechanical behavior of aluminium-based fibre metal laminates under compression after impact. Damage initiation and propagation were assessed for critical state and force thresholds. Parametrization of laminates was done to compare their damage tolerance. Results showed that relatively low-energy impact had a marginal effect on the compressive strength of fibre metal laminates. The aluminium-glass laminate exhibited higher damage resistance while the aluminium-carbon laminate had greater energy dissipation ability. Significant damage propagation before the critical load was observed.
