Abstract
Biological materials have long attracted the attention of researchers in different science fields owing to their unique structure and mechanical performance. This paper presents some of the key design strategies, adopted by the hexactinellid sponge E. aspergillum. The laminated configuration of the spicules and silica cement, the periodic lattice arrangement and the fusion strategies play a prominent role in enhancing the structural performance of the skeleton. It is established that the overlapping pattern of the spicules, forming the main framework, is not consistent in all sections of the lattice. Several toughening mechanisms which significantly contribute to the damage tolerance capabilities of the skeleton are identified and discussed. In addition, a novel lattice, inspired by the skeleton of E. aspergillum, is introduced. The performed determinacy analysis of the finite and infinite structures indicates that the lattice experiences pre-stressed behaviour characterised with stiffening the internal mechanisms by the states of self-stress.
Original language | English |
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Title of host publication | ICCM International Conferences on Composite Materials |
Publication status | Published - 2011 |
Event | 18th International Conference on Composites Materials, ICCM 2011 - Jeju, Korea, Republic of Duration: 21 Aug 2011 → 26 Aug 2011 |
Conference
Conference | 18th International Conference on Composites Materials, ICCM 2011 |
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Country/Territory | Korea, Republic of |
City | Jeju |
Period | 21/08/11 → 26/08/11 |
Keywords
- Composite materials
- Euplectella aspergillum
- Lattice structures
- Structural efficiency
ASJC Scopus subject areas
- General Engineering
- Ceramics and Composites