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Lightweight Ballistic Protection of Flight-Critical Components on Commercial Aircraft. Part 1: Ballistic Characterization of Zylon. Final technical rept (1/2002 - 3/2003).
| 题名： | Lightweight Ballistic Protection of Flight-Critical Components on Commercial Aircraft. Part 1: Ballistic Characterization of Zylon. Final technical rept (1/2002 - 3/2003). |
| 作者： | GOLDSMITH, W.; KWONG, K. |
| 关键词： | *Commercial-aircraft; *Ballistics-; *Aircraft-engines; *Materials-testing.;Engine-failure; Boundary-conditions; Energy-absorbers; Testing-; Test-methods; Barriers-; Shielding-; Transportation-safety. |
| 摘要： | The University of California, Berkeley collaborated with The Boeing Company and SRI International to develop a lightweight ballistic protection for flight-critical components on commercial aircraft. Berkeley's role in support of this program was to provide small-scale ballistic testing and computational analysis. This report (part 1) describes the work performed and the results obtained by UC Berkeley. Separate parts of this report describe Boeing and SRI results. This report presents the results of an experimental study of the effects of normal impact on various numbers of adjacent Zylon (Registered trademark) 35x35 and Kevlar (Registered trademark) 29x29 sheets. As part of an effort to contain rotor burst fragments in commercial aircraft, a fragment simulator (right circular steel cylinder with a 1.27 cm (1/2 inch) diameter and 3.81 cm (1 1/2 inch) length) was fired at normal incidence against a 25.4- by 25.4-cm (10- by 10-inch) window of fabric at velocities of 57 m/s to 342 m/s (187 ft/sec to 1122 ft/sec). This study tested four different boundary conditions: (1) four clamping sides, (2) two clamping sides, (3) four corner pegs, and (4) eight pegs. The experimental investigation also considers the effects of three shot locations: (1) center shots, (2) diagonal shots, and (3) midway shots. From the ballistic tests, Zylon displayed better ballistic performance than Kevlar. Of the four different boundary conditions, the four- and eight-peg configuration absorbed the greatest amount of impact energy per ply without complete penetration. The shot location did not significantly affect the ballistic performance of the fabric. |
| 报告类型： | 科技报告 |
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