Accession Number : ADA299524

Title :   The Relative Effects of CW and RP Lasers on Composites and Metals.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Mueller, George P.

PDF Url : ADA299524

Report Date : 07 SEP 1995

Pagination or Media Count : 22

Abstract : DoD aircraft structural materials include both metals, primarily aluminum, and composites, primarily graphit/epoxy. The effect of lasers on these two materials is considerably different because of the large differences in some of their thermal properties. There are also significant differences depending on whether the laser irradiation is due to a continuous wave (CW) laser or a repetitively pulsed (RP) laser. Using the one-limensional thermal response code FLIKER the effects of both CW and Rp irradiations on aluminum and graphit/epoxy were modelled. Two classes of effects were examined: the immediate effects during the irradiations and the post irradiation damage effects. (MM) (S

Descriptors :   *PULSED LASERS, *ALUMINUM, *CONTINUOUS WAVE LASERS, *GRAPHITE EPOXY COMPOSITES, THERMAL PROPERTIES, COMPUTER PROGRAMS, METALS, TENSILE STRENGTH, COMPOSITE MATERIALS, DAMAGE ASSESSMENT, LASER BEAMS, TEMPERATURE GRADIENTS, AIRFRAMES, IRRADIATION, SPECIFIC HEAT, LASER DAMAGE.

Subject Categories : Lasers and Masers
      Laminates and Composite Materials
      Properties of Metals and Alloys
      Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE