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Active snap-fit development using topology optimization
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DOI：10.1080/00207540701440311.png)
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To make disassembly cost-efficient, one-to-many fasteners are needed. These so-called active fasteners use advanced materials or structures as a catalyst for disassembly, allowing multiple assemblies to separate simultaneously after exposure to specific external triggering conditions. Using topology optimization this paper explores the alternative configurations of pressure-based active fasteners. The optimization problem is first solved in the 2D space for a snap-fit like design. Based on these results the problem was extended to 3D and solved. Similar as for the 2D results, a detailed finite element verification was conducted which proved the optimized structure shows an increase of the disassembly efficiency with 200-250% compared to the initial non-optimized structure measured in displacement of the snapping features. As such, this paper shows that for future manufacturing businesses, active fasteners promise to be a valid alternative for shredding. Since the model can easily be modified for other trigger conditions or design configurations, the proposed approach proves to be suitable to develop different types of one-to-many disassembly fasteners.
Keyword:
topology optimization
active disassembly
fastener development
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7.3
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1.1W
被引数:
3.7W
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