An impact protection device includes a cushion formed from a first material having a negative Poisson's ratio (NPR) and a second material having a positive Poisson's ratio (PPR). The first material and the second material can be layered or can be formed as a matrix of cells. The impact protection device can be an airbag with the cushion coupled to an inflation source or an expulsion source for deploying the airbag in response to an impact. The impact protection device can also be an impact vest with the cushions positioned on the vest body for absorbing impact forces to the vest body. The combination of the NPR and PPR materials improve the impact absorption of the impact protection devices compared to conventional materials.


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    Title :

    Negative poisson's ratio materials for impact protection devices


    Contributors:

    Publication date :

    2025-03-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / A41D Oberbekleidung , OUTERWEAR



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