基于MSPH方法模拟激光对树脂基复合材料的辐照效应

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。

MSPH method applied to simulate the irradiation effect of resin composites irradiated by laser

Complicated physical and chemical changes such as thermal decomposition,ablation,evaporation even complicated interface problem may take place while resin composites irradiated by laser.In view of the mesh free particle methods have advantages on dealing with problems of large deformation,mesh distortion and laser ablation,the modified smoothed particle hydrodynamics method(MSPH) was applied to numerical simulating the three-dimensional temperature field model of resin composites irradiated by laser.By comparing the simulation results with the experimental results,the applicability of MSPH to simulate the irradiation effects of resin composites irradiated by laser was studied.Numerical simulation results indicate that MSPH is fit for modeling the irradiation effects of resin composites irradiated by laser.Furthermore,MSPH is also a valuable numerical method in the domain of laser interaction with matter.