Mechanical metamaterials: Does toughness characterise fracture?

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• Dr Angkur Jyoti Dipanka Shaikeea, Ashby Fellow, CUED
• Friday 21 January 2022, 14:00-15:00
• CUED LR4.

If you have a question about this talk, please contact Hilde Hambro.

Rapid progress in additive manufacturing has resulted in creation of three dimensional micro-architected materials with a range of engineering applications. One of their current limitations is understanding the tolerance to damage and defect, and whether continuum theories of elastic fracture mechanics are applicable. In this combined experimental and numerical investigation, we not only revise the standard testing protocols but also provide a design protocol for mechanical metamaterials using “failure maps”. These findings represent a step towards developing a continuum theory for the failure of this emerging class of solids.

This talk is part of the Engineering - Mechanics and Materials Seminar Series series.

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