Advances in fracture mechanics of biological and bioinspired microstructured composites
The intense competition for survival in nature for billions of years has led to the evolution of intricate microstructures in biological materials.These microstructures break the well-known strength-toughness trade-off of traditional structural materials,offering new ideas for developing advanced engineering structural materials.However,the complex microstructure also poses a new challenge for classical fracture mechanics,which assumes material homogeneity.The macroscopic fracture behavior of biological materials exhibits complex features of multi-scale,multi-process,and multi-medium coupling.Studying the fracture mechanics of biological composites with microstructures is of great scientific significance and has potential application prospects for broadening the research scope of fracture mechanics,promoting the development of fracture mechanics theory,and inspiring the optimization design of advanced structural materials.This paper reviews recent research progress on the fracture mechanics of biological and bioinspired composites with sophisticated microstructures from three aspects:theoretical analysis,numerical simulation,and experimental techniques.The focus is on introducing new methods and ideas that provide guidance for the development of fracture mechanics of heterogeneous materials and the design of strong and tough advanced materials.
fracture mechanicsarchitected compositesheterogeneous materialstoughening and strengthening
万方数据
维普
