3D printing of biomimetic composites with improved fracture toughness

TL;DR: In this article , different types of biomimetic porous structures seen in nature, many of which are composite structures, and categorise them are identified and illustrated their functions and shown how these porous structures have been mimicked for engineering applications.

TL;DR: In this article, an ultrasonic vibration technique together with selective laser melting (SLM) is employed to fabricate aluminum matrix composites with alternative TiN nanoparticle contents (0, 2, 4, and 6 wt%).

TL;DR: In this article , Mg-Ti composites were fabricated by pressureless infiltrating pure Mg melt into three-dimensional (3D) printed Ti-6Al-4V scaffolds, where the constituents are continuous, mutually interpenetrated in 3D space and exhibit specific spatial arrangements with bioinspired brick-and-mortar, Bouligand, and crossed-lamellar architectures.

TL;DR: In this paper, the authors consider biological structures from marine and terrestrial animals that safeguard their body parts from external attack and discuss biological structures that are not employed for protective purposes but provide flexibility and have damage tolerant properties suitable for developing strong, tough and lightweight bio-inspired armour.

TL;DR: In this article, the authors describe the mixed mode cracking in layered materials and elaborates some of the basic results on the characterization of crack tip fields and on the specification of interface toughness, showing that cracks in brittle, isotropic, homogeneous materials propagate such that pure mode I conditions are maintained at the crack tip.

TL;DR: 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.

TL;DR: The design process engineering materials and their properties materials selection charts materials selection without shape selection of material and shape materials processing and design sources of material property data materials, aesthetics and industrial design forces for change case studies as mentioned in this paper.

TL;DR: This work focuses on the interplay between the mechanisms that individually contribute to strength and toughness, noting that these phenomena can originate from very different lengthscales in a material's structural architecture.