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- Investigating the Architecture and Characteristics of Asian Hornet Nests: A Biomimetics Examination of Structure and MaterialsPublication . Sedira, Naim; Pinto, Jorge; Ginja, Mário; Gomes, Ana; Nepomuceno, Miguel C. S.; Pereira, SandraThis study investigates the internal architecture of Asian hornet nests (AHNs) using advanced imaging techniques, such as CT scanning and X-ray radiography, to understand their construction and function. The primary objective and significance of this study centre on drawing inspiration from the creative way Asian hornets construct their nests, with a particular focus on the architecture, design, functionality, and building materials of these nests. The architectural principles governing the construction of these nests, such as the arrangement of hexagonal cells, pedicels for load bearing, and adhesive materials, serve as a source of inspiration for innovative and sustainable design practices. The pedicels in Asian hornet nests play a crucial role in transferring load and ensuring stability. Additionally, AHNs’ adhesion to tree branches is essential for preventing collapse, and the pedicels provide necessary structural support. The knowledge gained from studying AHNs’ internal architecture could be applied directly to the architecture and civil engineering fields to improve structure stability and durability. The microstructure analysis of the paper-like material that hornets produce to build their nests indicates a complex and heterogeneous structure, composed of various plant fragments and fibres. This unique composition creates intricate grooves and pores, which are essential for regulating temperature and humidity levels within the outer envelope of the nest. The study of Asian hornet nests’ internal structure demonstrated that nature’s engineering principles inspire the design of durable and resilient structures in the construction industry. Civil engineers can incorporate similar principles into their designs to enhance the structural integrity and performance of buildings, bridges, and other infrastructure.
- An Input in the Asian Wasp Nest (AWN) StudyPublication . Pinto, Jorge; Ginja, Mário; Nepomuceno, Miguel C. S.; Pereira, SandraThe Asian Wasp Nest (AWN) is an impressive and robust natural construction built by an insect. The building process occurs during spring and summer. This type of nest is not reused. The scale size between the Asian wasp and the AWN is substantial. In Portugal, we can find AWN on trees, roofs, balconies, chimneys, and other possibilities. When the AWN is built on trees, the tree's branches work as support. The complexity of this natural construction in terms of shape motivated this research work. Therefore, an AWN sample was used in order to obtain some information concerning this technical aspect. In this context, X-ray tests were performed to give guidance about the internal structure of the AWN without damaging it. The obtained experimental results show the richness of this type of construction. Understating the AWN may guide new building processes, different structural shapes, alternative natural building materials, and passive building technics, among other constructive fields.