天然铠甲高效防护的材料学机理

赵宁, 焦大, 朱艳坤, 刘德学, 刘增乾, 张哲峰

Material Science Mechanism for Efficient Protection of Natural Armor

ZHAO Ning, JIAO Da, ZHU Yankun, LIU Dexue, LIU Zengqian, ZHANG Zhefeng

图2 生物材料的梯度结构取向与相应的强韧化机理

Fig.2 Gradient structural orientation in natural biological materials and its underlying strengthening and toughening mechanisms (a) continuously varying structural orientations in the pangolin scale, as indicated by the black dashed curve[21]; (b) variations in the normalized mechanical properties as a function of the relative position from surface to interior in the composite[30]; (c) contours of the equivalent von Mises stress in the composites with different structural orientations under indentation loading based on finite element analysis simulation[30]