Bio-inspired generative design for engineering products: A case study for flapping wing shape exploration

Jiang, Zhoumingju; Ma, Yongsheng; Xiong, Yi

doi:10.1016/j.aei.2023.102240

Cited by 7 publications

(1 citation statement)

References 31 publications

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“…The detailed principles of joint strength enhancement and easy disassembly achieving will be given in section 2.2. However, recognizing the inherent challenges within the intersection of biomimetics and the following manufacturing, it is imperative to acknowledge the impracticality of directly replicating the morphology of rose thorns in the joining process of dissimilar materials [39,40]. This is attributed to significant disparities between natural materials and those employed in engineering applications [41,42].…”

Section: Introductionmentioning

confidence: 99%

Design of rose thorn biomimetic micro-protrusion for metals and CFRTP easily disassembled joining

Wang,

Yasuda,

Nishikawa

2024

Eng. Res. Express

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This study focuses on the joining techniques for metals and carbon fiber reinforced thermoplastic (CFRTP) to address the pursuit of lightweight vehicles and high recycling efficiency. The innovative concept of “easy-disassembly joining” is introduced for the first time, aiming for robust joint strength and efficient disassembly/recycling of end-of-life vehicles. Inspired by rose thorn morphology and natural performances, bionic micro-protrusions are explored as intermediate structures to facilitate the easy disassembly joining between metals and CFRTP. The primary focus of the study revolves around the design strategy of micro-protrusions inspired by rose thorns. The objective is to identify the most effective micro-protrusion shapes by understanding the interplay of its geometrical parameters, including base shape, apex position, profile curvature, and stress distribution under diverse loads. Utilizing static stress numerical simulations, the study conclusively identifies an elliptical base shape with the apex positioned slightly above the right edge of the structure. The outer profile adopts a circular arc, and the inner profile follows a conical curve. This configuration effectively mitigates stress concentration at the bottom, which interfaces with the metal substrate and the smaller areas around the apex. This research introduces an innovative concept for metal-CFRTP joining and applies bionic principles in engineering solutions. By promoting lightweight and sustainable structures through enhanced disassembly efficiency, it contributes to groundbreaking advancements in the field.

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