Metastructure having zero elastic modulus zone and method for designing metastructure having zero elastic modulus zone
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United States of America
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Mar 18, 2025
Grant Date -
Apr 20, 2023
app pub date -
Dec 19, 2022
filing date -
Dec 19, 2022
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Abstract
Disclosed herein are a metastructure having a zero elastic modulus zone, which can experience constant stress in a predetermined strain zone, and a method for designing the same. The metastructure includes a first unit and a second unit, wherein the first unit has a structure capable of buckling and has a stress-strain relation having a zone corresponding to a negative elastic modulus, the second unit is disposed adjacent to the first unit and has a stress-strain relation having a zone corresponding to a positive elastic modulus, and the metastructure has zero elastic modulus in a predetermined target strain zone through synthesis of the negative elastic modulus of the first unit with the positive elastic modulus of the second unit.
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