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Pregunta
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Respuesta correcta
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What are metamaterials? :
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Artif. mat. with unusual electromagnetics property |
What are mechanical metamaterials? :
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A type that exhibit exotic mechanical properties |
Which material does the “auxetic” term refer to? :
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Transverse shrink/expand in compression/tension |
What can be auxetics? :
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Molec,crystal,partic struct of macroscopic matter |
Which is the main characteristic of the auxetic materials? :
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They’ve an negative Poisso’s ratio |
What is the Poisson's ratio? :
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An elastic constant |
Which is the Poisson’s ratio of most materials? :
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Between 0.0 and +0.5 |
Which is the Poisson’s ratio of a stable isotropic, linear elastic? :
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Between -1.0 and +0.5 |
Which is a characteristic of auxetic metamaterials? :
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Better energy absorption than traditional mat. |
Which of the following is a characteristic of auxetic metamaterials? :
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Its low density |
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Pregunta
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Respuesta correcta
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Which is a characteristic of auxetic metamaterials? :
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High fracture toughness |
How do auxetic materials respond to compression? :
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They expand laterally |
When auxetic materials are stretched, how do they typically behave? :
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They expand perpendicular to the applied force |
In which type of environment are auxetic materials particularly beneficial? :
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High-impact and dynamic loading environments |
What is a common method used to create auxetic materials? :
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Mechanical engineering of microstructures |
Which are some fields of application? :
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Medical and aerospace |
Which is an application of auxetic metamaterials? :
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Bone-implanted devices |
Which are some medical devices of auxetic metamaterials? :
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Bone scaffolds and bone implants |
Which is an example of an application in the biological field? :
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Nuclei of mouse embryo. stem cells in trans state |
What are bone scaffolds made of? :
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Porous degradable materials |
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