NBS PUBLICATIONS " u „ | NBSIR 81-1648 AlllOfc, c i7'il00 INTERIM PROGRESS REPORT: l-INTEGRAL METHOD FOR FITNESS-FOR-SERVICE ASSESSMENT D.T. Read H.l. McHenry Fracture and Deformation Division National Measurement Laboratory National Bureau of Standards Boulder, Colorado 80303 Sponsored by: David Taylor Naval Ship Research & Development Center Annapolis, MD 21402 May 1981 -QC— — 100 . U56 81-1643 1931 c. 2