| 摘要 |
A protective armor construction includes a plurality of layers of penetration resistant material. These layers comprise one or more expandable stress layers of flexible penetration resistant material having a plurality of folds therein. The folds are arranged so as to unfold and expand in response to a penetration force exerted on the armor construction, e.g., by a bullet, such as to impede the penetration force and to thereby limit penetration of the armor construction. To provide superior protection, two or more of such expandable stress layers are provided along with multiple unfolded layers disposed in front and behind these layers. The folds of the two expandable layers extend orthogonally to one another while the folds of the individual expandable layers over lap. The folds of the outermost expandable layer face outwardly while the folds of the innermost expandable layer face inwardly.
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