Failure analysis of a CH-47 horizontal hinge pin assembly, P/N 114RS226 / Marc Pepi, Gary Wechsler.
| Author/creator | Pepi, Marc S. |
| Other author | Wechsler, Gary. |
| Other author | U.S. Army Aviation and Missile Command. |
| Other author | U.S. Army Research Laboratory. |
| Format | Electronic |
| Publication Info | Aberdeen Proving Ground, MD : Army Research Laboratory, [2006] |
| Description | 1 online resource (viii, 28 pages) : illustrations (some color). |
| Supplemental Content | https://purl.fdlp.gov/GPO/gpo9239 |
| Supplemental Content | http://handle.dtic.mil/100.2/ADA459785 |
| Subjects |
| Series | ARL-TR ; 4011 ARL-TR (Abderdeen Proving Ground, Md.) ; 4011. UNAUTHORIZED |
| Abstract | A CH-47D horizontal hinge pin assembly was examined to determine the root cause of ring and roller fracture and spalling. Chemical analyses, metallography, and hardness testing indicated that the rings and rollers conformed to the material requirements of the governing drawing. Metallography and visual and scanning electron microscopy indicated the failure likely initiated in the lag ring due to rolling contact fatigue because of high-service loads. |
| General note | Title from title screen (viewed on June 28, 2011). |
| General note | "December 2006." |
| Bibliography note | Includes bibliographical references (p. 26). |
| Access restriction | APPROVED FOR PUBLIC RELEASE. |
| Report note | Final report; Nov. 2005 - July 2006. |
| Funding information | Sponsored by the U.S. Army Aviation and Missile Command 680L31 |
| Technical rpt# | ARL-TR-4011 |
| GPO item number | 0324-A-01 (online) |
| Govt. docs number | D 101.133:4011 |
Availability
| Library | Location | Call Number | Status | Item Actions |
|---|---|---|---|---|
| Electronic Resources | ✔ Available |