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复合材料气瓶红外检测热激励方法主要分为气瓶外部热激励和气瓶内部热激励两种,为了研究适合复合材料气瓶分层缺陷的热激励方法,本文利用COMSOL Multiphysics有限元软件对不同热激励方法下的复合材料气瓶分层缺陷红外检测进行模拟分析,并构建红外检测热激励实验平台,对模拟结果进行热激励实验验证。研究了气瓶外部光激励和气瓶内部热水激励两种热激励方法对复合材料气瓶分层缺陷红外检测效果的影响。结果表明,气瓶外部光激励存在着加热不均匀现象如局部亮斑,且金属的传热较快,检测效果一般;气瓶内部热水激励加热较为均匀未出现亮斑,检测效果良好,更适合复合材料气瓶分层缺陷的红外检测。
In order to study the thermal excitation method suitable for the layered defects of composite cylinders, COMSOL Multiphysics finite element software was used to simulate the different heat Under the stimulation method, the infrared ray detection was carried out for the composite material cylinder. The thermal excitation experiment platform for infrared detection was constructed. The simulation results were verified by thermal excitation. The effects of external excitation of gas cylinder and internal thermal excitation of gas cylinder on the infrared detection effect of layered delamination of composite cylinder were studied. The results show that there is non-uniform heating phenomenon such as local bright spot, and the metal heat transfer is fast, the detection effect is general; the hot water inside the cylinder is heated evenly, no bright spots appear, the detection effect is good, and more Infrared detection suitable for laminar defects of composite cylinder.