Accession Number : ADA117697

Title :   A Semi-Analytical Model for Laser-Induced Ablation of Fibre-Resin Composites,

Corporate Author : MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)

Personal Author(s) : Crane,K C A

PDF Url : ADA117697

Report Date : Mar 1982

Pagination or Media Count : 19

Abstract : Laser-induced ablation of fibre-resin composites is considered using a steady-state, one-dimensional model. In the analysis, it is attempted to clarify the physical and chemical aspects of ablation rather than to predict ablation rates. it is shown how suitable measurements may be used in conjunction with this model to determine loss rates for combined gaseous and combined non-gaseous products of ablation, and to determine the average enthalpy of each of these two losses. The model is restricted to incident irradiances in excess of approximately 30 MW per square m and to cases in which the ablation rate varies with irradiance in a linear fashion. Because some of the required measurements may be difficult to make accurately, this analysis should be regarded as a preliminary to more detailed work. (Author)

Descriptors :   *FIBER REINFORCED COMPOSITES, *LASER DAMAGE, *ABLATION, *MATHEMATICAL MODELS, PYROLYSIS, REACTION KINETICS, LOSSES, RATES, COMBUSTION PRODUCTS, GASES, ENTHALPY, MEASUREMENT, THERMOCHEMISTRY, NUMERICAL ANALYSIS

Subject Categories : Lasers and Masers
      Laminates and Composite Materials
      Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE