论文标题
分析过程引起的远程激光切割碳纤维增强聚合物的损伤
Analysis of process-induced damage in remote laser cut carbon fibre reinforced polymers
论文作者
论文摘要
在此贡献中，引入了一种方法，该方法允许过程引起的结构损伤与断裂行为之间建立联系。基于各向异性弹性材料模型，引入并比较了不同的初始损伤效应的建模方法。这些方法应用于远程激光切割碳纤维增强聚合物，以模拟各种热诱导的损伤效应，例如化学分解，微裂缝和分层。该热影响区的尺寸通过1D热传导计算。在实验和仿真中，比较了具有不同过程参数的铣削和激光切割标本，以量化切割技术对断裂行为的影响。为此，使用了开放孔标本。
In this contribution a method is introduced that allows for a linkage between the process-induced structural damage and the fracture behaviour. Based on an anisotropic elastic material model, different modelling approaches for initial damage effects are introduced and compared. The approaches are applied to remote laser cut carbon fibre reinforced polymers in order to model various thermally induced damage effects like chemical decomposition, micro-cracks and delamination. The dimensions of this heat affected zone are calculated with 1D-heat conduction. In experiment and simulation milled and laser cut specimens with different process parameters are compared in order to quantify the impact of the cutting technology on the fracture behaviour. For this purpose open hole specimens were used.
