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树脂基复合材料在激光辐照下通常会发生复杂的物理化学变化,可能涉及材料热分解、烧蚀、汽化和比较复杂的界面问题。鉴于无网格粒子法在处理大变形、网格畸变和材料烧蚀等问题时有优势,利用改进的光滑粒子方法对激光辐照下复合材料树脂基热解时的三维温度场模型进行数值求解。将数值模拟结果与实验结果进行对比,考察了改进的光滑粒子方法对所考虑问题的适用性。结果表明:改进的光滑粒子方法适合于模拟激光对树脂基复合材料的辐照效应,在激光与物质相互作用领域,该方法也是值得关注的一种数值方法。
Resin-based composites usually undergo complex physicochemical changes under laser irradiation, which may involve thermal decomposition, ablation, vaporization and complex interface problems. In view of the advantages of meshless particle method in dealing with the problems of large deformation, grid distortion and material ablation, a three-dimensional temperature field model of resin matrix pyrolysis under laser irradiation is numerically solved by the improved smooth particle method . The numerical simulation results are compared with the experimental results, and the applicability of the improved smooth particle method to the considered problems is investigated. The results show that the improved smooth particle method is suitable for simulating the laser radiation effect on resin matrix composites. In the field of laser-matter interaction, this method is also a numerical method worthy of attention.