Damage-tolerant architected materials inspired by crystal microstructure

  title={Damage-tolerant architected materials inspired by crystal microstructure},
  author={Minh-Son Pham and Chen Liu and Iain Todd and Jedsada Lertthanasarn},
Architected materials that consist of periodic arrangements of nodes and struts are lightweight and can exhibit combinations of properties (such as negative Poisson ratios) that do not occur in conventional solids. Architected materials reported previously are usually constructed from identical ‘unit cells’ arranged so that they all have the same orientation. As a result, when loaded beyond the yield point, localized bands of high stress emerge, causing catastrophic collapse of the mechanical… 

Mechanical behaviour of additively manufactured Ti6Al4V meta-crystals containing multi-scale hierarchical lattice structures

The mimicry of crystalline microstructure at meso-scale creates a new class of architected materials, termed meta-crystals, and offers effective ways to significantly improve the toughness and

Tailoring 3D Buckling and Post Contact in Microlattice Metamaterials

Mechanical metamaterials have been established as the paragons of enhanced mechanical performance, due to their properties inherited by their architected microstructure. The rapid progress in

The Twisting of Dome‐Like Metamaterial from Brittle to Ductile

Architected materials can exhibit mechanical properties that do not occur with ordinary solids. By integrating hierarchy and size effects, microarchitected metamaterials fabricated by two‐photon



Architectured materials in engineering and biology: fabrication, structure, mechanics and performance

Ever-increasing requirements for structural performance drive the research and the development of stronger, tougher and lighter materials. Specific microstructures, heterogeneities or hybrid

Printing nature: Unraveling the role of nacre's mineral bridges.

Heterogeneous and Architectured Materials: A Possible Strategy for Design of Structural Materials

Facing increasing demands for multifunctional solutions, the classical strategy of the metallurgist to improve properties, using microstructural refinement, reaches its limits: very often the

Bioinspired structural materials.

The common design motifs of a range of natural structural materials are reviewed, and the difficulties associated with the design and fabrication of synthetic structures that mimic the structural and mechanical characteristics of their natural counterparts are discussed.

The deformation of single crystals of copper and copper-zinc alloys containing alumina particles - I. Macroscopic properties and workhardening theory

  • P. HirschF. J. Humphreys
  • Materials Science
    Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
  • 1970
The stress-strain curves of Cu and Cu + Zn alloys containing alumina particles have been measured as a function of temperature, strain rate, composition, volume fraction and radius of the particles.

Propagation of short fatigue cracks

AbstractFatigue crack propagation in engineering materials has been the subject of considerable research, and extensive review articles have appeared over the past several years. Most of these

Inverse Temperature Dependence of Toughness in an Ultrafine Grain-Structure Steel

An inverse temperature dependence of toughness in an ultrahigh-strength bcc steel with an ultrafine elongated ferrite grain structure that was processed by a thermomechanical treatment without the addition of a large amount of an alloying element is observed.