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An engine fan containment shroud including a containment structure composed of a composite material including a reinforcing fiber having an elongation to break of at least about 3.6%. The preferred fiber is a quartz fiber having an elongation to break of at least about 5%. Additionally or alternativ

An engine fan containment shroud including a containment structure composed of a composite material including a reinforcing fiber having an elongation to break of at least about 3.6%. The preferred fiber is a quartz fiber having an elongation to break of at least about 5%. Additionally or alternatively, the reinforcing fiber, in particular quartz fiber, has a hardness of at least about 4 on the Mohs scale, as measured on bulk material, which resists cutting by an impacting object. The composite material and specifically an epoxy/quartz fiber composite provides for weight reduction while providing fan blade containment without loss of structural integrity and with improved resistance to impact and puncture.

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1. A ballistic structure comprising a wall composed of quartz fiber having an elongation to break of at least about 5%.2. A containment shroud for high velocity projectiles, the containment shroud comprising a wall that defines an annular-shaped containment shell composed of a composite material inc

1. A ballistic structure comprising a wall composed of quartz fiber having an elongation to break of at least about 5%.2. A containment shroud for high velocity projectiles, the containment shroud comprising a wall that defines an annular-shaped containment shell composed of a composite material including a reinforcing fiber having an elongation to break of at least about 5%.3. A containment shroud as set forth in claim 2, comprising an inner wall surrounded by the containment shell, the inner wall being composed of a ceramic material having an interior surface, and at least a portion of the interior surface has an abrasive surface texture.4. A containment shroud for surrounding a plurality of blades of a turbo-machine, the containment shroud comprising a wall that defines an annular-shaped containment shell composed of a composite material including a reinforcing fiber having an elongation to break of at least about 5%.5. A containment shroud as set forth in claim 4, wherein the fiber has an elongation to break of between at least about 5% and about 7%.6. A containment shroud as set forth in claim 4, wherein the fiber has a hardness of at least about 4 on the Mohs scale.7. A containment shroud as set forth in claim 4, wherein the fiber has a hardness of at least about 5 on the Mohs scale.8. A containment shroud as set forth in claim 4, wherein the fiber has a hardness of at least about 6 on the Mohs scale.9. A containment shroud as set forth in claim 4, wherein the fiber has a hardness of between about 6.5 and 7 on the Mohs scale.10. A containment shroud as set forth in claim 4, wherein the composite has an epoxy resin matrix.11. A containment shroud as set forth in claim 10, wherein the percent resin content by weight of the resin in a fiber prepreg is from about 10% to about 60%.12. A containment shroud as set forth in claim 10, wherein the percent resin content by weight of the resin in a fiber prepreg is from about 25% to about 50%.13. A containment shroud as set forth in claim 10, wherein the percent resin content by weight of the resin in a fiber prepreg is between about 31% and about 45%.14. A containment shroud as set forth in claim 10, wherein the percent resin content by weight of the resin in a fiber prepreg is about 38%+/?3%.15. A containment shroud as set forth in claim 4, comprising a fan case including said wall.16. A containment shroud as set forth in claim 4, comprising a fan case, and said wall is wrapped around said fan case.17. A containment shroud for surrounding a plurality of blades of a turbo-machine, the containment shroud comprising a wall that defines an annular-shaped containment shell composed of quart fiber having an elongation to break of at least about 5%.18. A containment shroud as set forth in claim 17, wherein the quartz fiber has an elongation to break of between at least about 5% and about 7%.19. A containment shroud as set forth in claim 17, wherein the quartz fiber has a hardness of at least about 4 on the Mohs scale.20. A containment shroud as set forth in claim 17, wherein the quartz fiber has a hardness of at least about 5 on the Mohs scale.21. A containment shroud as set forth in claim 17, wherein the quartz fiber has a hardness of at least about 6 on the Mohs scale.22. A containment shroud as set forth in claim 17, wherein the quartz fiber has a hardness of between about 6.5 and 7 on the Mohs scale.23. A containment shroud as set forth in claim 17, wherein the composite has an epoxy resin matrix.24. A containment shroud as set forth in claim 23, wherein the percent resin content by weight of the resin in a fiber prepreg is from about 10% to about 60%.25. A containment shroud as set forth in claim 23, wherein the percent resin content by weight of the resin in a fiber prepreg is from about 25% to about 50%.26. A containment shroud as set forth in claim 23, wherein the percent resin content by weight of the resin in a fiber prepreg is between about 31% and about 45%.27. A containment shroud as set forth in claim 23, wherein the percent resin content by weight of the resin in a fiber prepreg is about 38%+/?3%.28. A containment shroud as set forth in claim 17, comprising a fan case including said wall.29. A containment shroud as set forth in claim 17, comprising a fan case, and said wall is wrapped around said fan case.30. A containment shroud as set forth in claim 17, wherein said composite includes a resin matrix having a melting temperature of at least about 300° F.31. In a turbomachine hang a plurality of blades mounted to a disk and a blade containment shroud surrounding the blades, the containment shroud comprising a wall that defines an annular-shaped containment shell composed of quartz fiber having an elongation to break of at least about 5%.32. A containment shroud as set forth in claim 31, comprising a fan case including said wall.33. A containment shroud as set forth in claim 31, comprising a fan case, and said wall is wrapped around said fan case.