Effect of Microstructure of Spongy Bone in Different Parts of Woodpecker’s Skull on Resistance to Impact Injury

Year: 2013

Type: article

Abstract: Natural biological materials such as bone, teeth and nacre are nano‐composites of protein and mineral frequently exhibit highly superior strength for self‐assembly and nanofabrication. Mineral mass and microstructure/nanostructure of bone are susceptible to stimulation by mechanical loads, ensuring that its mechanical behavior and strength are adapted to environmental changes. Woodpeckers repeatedly drum tree trunks at a speed of 6‐7 m s−1 and acceleration of ~1000 g with no head injuries. The uneven distribution of spongy bone has been founded on woodpecker′s skull in our previous study. More knowledge of the distribution of the shock‐absorbing spongy bone could be incorporated into the design of new safety helmets, sports products, and other devices that need to be able to resist the impact. In this study, the effect of microstructure of spongy bone in different parts on woodpecker’s skull compared with other birds was observed and analyzed. It was found that the unique coordinate ability of micro‐parameters in different parts of woodpecker’s skull could be one of the most important roles of its resistance to impact injury. Better understanding of the materials would provide new inspirations of shock‐absorbing composite materials in engineering.

Source: Journal of Nanomaterials

DOI: 10.1155/2013/924564

Authors: Lizhen Wang, Xufeng Niu, Yikun Ni, Peng Xu, Xiaoyu Liu, Shan Lu, Ming Zhang, Yubo Fan

Institutions: Beihang University, China Science and Technology Publishing & Media, Hong Kong Polytechnic University

Language: English

Topic: Calcium Carbonate Crystallization and Inhibition

Subfield: Biomaterials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,375

Funders: National Natural Science Foundation of China, Natural Science Foundation of Beijing Municipality, Specialized Research Fund for the Doctoral Program of Higher Education of China

OpenAlex ID: W2145839841