I am looking for the optical reflectivity and optical absorption coefficient of CFRP to model the thermoelastic effect of the laser spot on the CFRP. Following is the heat flux formula which I used in my work:
q=b*(1-R)*I*exp(-bz)*exp(-r^2/a^2)*exp(-t/t0)*(t/t0)
b: Optical absorption coeff.
R: Optical reflectivity
Could you please tell me what values I should consider for those two parameters?
see the following article for optical coefficent determination
Bandgap variation in size controlled nanostructured Li–Ni co-doped CdO thin
films
Thanks for the answer Muhammad. But I need optical reflectivity and optical absorption coeff. for the composite material like CFRP. Do you know how can find or calculate them?
Thanks
Dear hamid
I think this paper can serve you
A+
https://www.osapublishing.org/DirectPDFAccess/0DA6B31C-C197-F60E-DBD2A8D1F3064C84_327362/ome-5-10-2330.pdf?da=1&id=327362&seq=0&mobile=no
Dear Soufiene,
Thanks for your answer. Unfortunately. I can not download the paper. could you please send me the title of the paper?
The title is "Absorption behavior analysis of Carbon Fiber Reinforced Polymer in laser processing"
thank you. Do you know how can calculate or find the reflectivity of the CFRP?
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