Modeling of single-lap joints with auxetic adhesive utilizing homogeneous and heterogeneous bondline microstructures

Puspaningtyas, Chatarina P.; Jusuf, Annisa; Hadi, Bambang K.; Yudhanto, Arief

doi:10.1016/j.heliyon.2024.e24141

Cited by 3 publications

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Harnessing Extrinsic Dissipation to Enhance the Toughness of Composites and Composite Joints: A State‐of‐the‐Art Review of Recent Advances

Lubineau,

Alfano,

Tao

et al. 2024

Advanced Materials

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Interfaces play a critical role in modern structures, where integrating multiple materials and components is essential to achieve specific functions. Enhancing the mechanical performance of these interfaces, particularly their resistance to delamination, is essential to enable extremely lightweight designs and improve energy efficiency. Improving toughness (or increasing energy dissipation during delamination) has traditionally involved modifying materials to navigate the well‐known strength‐toughness trade‐off. However, a more effective strategy involves promoting non‐local or extrinsic energy dissipation. This approach encompasses complex degradation phenomena that extend beyond the crack tip, such as long‐range bridging, crack fragmentation, and ligament formation. This work explores this innovative strategy within the arena of laminated structures, with a particular focus on fiber‐reinforced polymers. This review highlights the substantial potential for improvement by presenting various strategies, from basic principles to proof‐of‐concept applications. This approach represents a significant design direction for integrating materials and structures, especially relevant in the emerging era of additive manufacturing. However, it also comes with new challenges in predictive modeling of such mechanisms at the structural scale, and here the latest development in this direction is highlighted. Through this perspective, greater durability and performance in advanced structural applications can be achieved.

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