Exploration of novel fiber‐metal laminates sandwich structures with cellulosic ramie woven core

Self Cite

The development of hybrid materials consisting of alternating layers of metal alloys and polymeric composites has revolutionized the engineering field. These metal‐composite laminates combine the merits of each individual component, forming advanced and promising structures which could be employed for structural applications. The low fatigue crack growth rate and high damage tolerance of these materials are particularly fascinating. When developing metal‐composite laminates with superb functional properties, the combination of several metal surface treatment techniques is a common practice to ensure optimum metal‐composite adhesion. Today, a new cutting‐edge manufacturing technique utilizing nano‐porous network film has been established to get rid of the massive infrastructure of conventional autoclave techniques and produce first‐rate materials. Even though various techniques can be adopted to manufacture metal‐composite laminates, the selection of the techniques is highly dependent on the nature of the polymer matrix. After the manufacture of the metal‐composite laminates, post‐stretching is considered a critical step to alleviate the unfavorable residual stress to ensure the optimum performance of these materials for long‐term service. When dealing with natural fibers, it is worth mentioning that the processing temperature should be limited to below 200°C regardless of manufacturing technique to avoid fiber degradation. Metal‐composite laminates consisting of synthetic/natural fibers are considered a viable option to offset the demerits of each kind of fibers. By incorporating fatigue‐resilient natural fibers in the laminates, it is expected that the overall fatigue resistance of the laminates can be apparently enhanced, which is in line with the initial goal of developing metal‐composite laminates.Highlights Fiber bridging offers fiber‐metal laminates with superior fatigue properties. Metal surface treatment is vital to ensure an optimum fiber‐bridging mechanism. A novel out‐of‐autoclave method can produce first‐grade fiber‐metal laminates. Post‐stretching is needed to lessen residual stress in fiber‐metal laminates. Hybrid fiber‐metal laminates are feasible for structural applications.

Section: Natural Fiber-based Fmlsmentioning

confidence: 99%

Section: Natural Fiber‐based Fmlsmentioning

confidence: 99%

State‐of‐the‐art review on developing lightweight fiber‐metal laminates based on synthetic/natural fibers

Ng,

Yahya,

Leong

et al. 2023

Self Cite

“…In most of the literature AA 2024-T3 has been used for the fabrication of FMLs. 7,[32][33][34][35][36][37][38][39] Few of the researchers have also used other grades of aluminum alloys such as AA 1050, [40][41][42] AA 1060-H12, 43 AA 1200-H14, 44 AA 2024-O, 45 AA 5005, 46 AA 5052-O, 47 AA 5052-H32, [48][49][50] AA 6061-T6, 17,29,51,52 AA 6063-T6, 53 and AA 7075-T6. 52,54,55 Limited amount of work has been conducted on the Magnesium alloy, 56,57 Titanium, 45 and Steel.…”

Section: Research Gap Addressed In the Papermentioning

confidence: 99%

High‐velocity ballistic response of AA 1100‐H14 based carbon‐fiber metal laminates: An experimental investigation

Jamsheed,

Rashid,

Velmurugan

2023

A detailed experimental investigation was carried out for the high‐velocity ballistic response of AA 1100‐H14 based carbon‐fiber metal laminates (FMLs). FMLs with different metal volume fractions and the same thickness of carbon‐epoxy fiber laminates were tested to examine the surface and internal damage. The ballistic performance parameters, namely % escalation in absorbed energy, specific energy absorbed, ballistic limit, specific perforation energy, first cracking energy, and global deformation profile, were studied and a comparison was drawn with pure carbons fiber reinforced epoxy composite laminates. Despite having greater thickness, pure carbon fiber‐reinforced epoxy composite laminates absorbed less impact energy than FMLs and failed catastrophically. For FMLs, the % escalation in the absorbed energy and the specific energy absorption kept increasing with the increasing impact velocity until the onset of perforation. Once the perforation started, both these parameters showed a decreasing trend. Thick FMLs absorbed a good amount of energy, leading to projectile recoil suffering minimal damage. The ballistic velocity, specific perforation energy, and first cracking energy on the front and rear face of FMLs layers showed an increasing trend. The minimum for the thinner and maximum for the thicker FMLs attributed to the large thickness and more metal volume fraction. Contrary to the large deformation of the impacting points, pure carbon fiber‐reinforced epoxy composite laminates showed very minimal deformation as compared to FMLs. The brittle nature of the epoxy resin resisted the deformation to a large extent leading to less energy absorption.Highlights High‐velocity ballistic response of AA 1100‐H14 based carbon‐FMLs was investigated. Ballistic performance parameters of FMLs were studied and was compared with carbons fiber reinforced composite laminates. The ballistic limit of FMLs showed a direct dependence its thickness and metal volume fraction. In the absence of any metallic layer, pure carbons fiber reinforced composite laminates absorbed less impact energy.

Insights on the bearing response of glass fiber‐reinforced stainless steel laminates: Investigating the influence of natural fiber and specimen geometry

Vasumathi,

Begum,

Gokul Nath

et al. 2024

This study delves into the bearing response of two types of Fiber Metal Epoxy Laminates (FMLs): Glass Fiber/Stainless Steel laminates and Glass Fiber/Jute/Stainless Steel laminates, where a portion of glass fiber is replaced with jute. The primary focus is to assess the impact of introducing natural fiber (jute) into FML on its pin‐type bearing performance, considering various edge‐to‐hole ratios (e/D), width‐to‐hole ratios (W/D), and stacking orders. The study aims to understand how these parameters influence the bearing load and failure modes of the laminates. Observations reveal that variations in e/D and W/D ratios, along with the stacking arrangement of materials in the FMLs, exert a significant influence on the ultimate load‐bearing capacity of the pinned joint. It is observed from the study that, for the two stacking sequences considered, the load bearing capacity of the FMLs with W/D ratio 6 is greater than those with W/D ratio of 4 by a maximum of 23.06%. Moreover, if the weight fraction of the glass fiber content in the FML is reduced, the ultimate load bearing capacity of the FML also gets curtailed to a maximum extent of 44%. The experimental findings suggest that the prepared fiber metal laminate, characterized by lower weight, cost‐effectiveness, and enhanced environmental friendliness, exhibits a substantial capacity to withstand bearing loads. Consequently, it emerges as a promising candidate for the construction of structures such as storage silos, offering a balanced combination of structural performance and sustainability.Highlights FML bearing performance: Glass/Stainless versus Glass/Jute/Stainless. Influence of e/D and W/D ratios on pin‐type bearing. Stacking order impact on load‐bearing capacity. Lightweight, cost‐effective, and eco‐friendly FMLs. Promising for silo construction: structural and sustainable.