Researchers study why metals fail

(PhysOrg.com) -- The eventual failure of metals, such as the aluminum in ships and airplanes, can often be blamed on breaks, or voids, in the material's atomic lattice. They're at first invisible, only microns in size, but ...

Dual simulation improves crash performance

Crash tests often produce startling results. A new simulation process which factors in deformation during production as well as preliminary damage can predict the results of a crash test more accurately than ever.

Defective plastics repair themselves

Indestructible things are a figment of the imagination of advertising. Even plastic components that have to stand up to major mechanical loads can break. The reason for this are microcracks that may be found in any component ...

Light-powered healing of a wearable electrical conductor

Mechanical failure along a conductive pathway can cause the unexpected shutdown of electronic devices, ultimately limiting device lifetimes. In particular, wearable electronic devices, which inevitably undergo dynamic and ...

New materials exhibit split personality

Julia Greer, professor of materials science, mechanics and medical engineering in Caltech's Division of Engineering and Applied Science, creates materials out of micro- and nano-scale building blocks that are arranged into ...

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