利用有限元仿真和试验研究相结合的方法,对方形和圆形模拟缺陷的吸波涂层试件开展检测研究.从而探索红外锁相热波技术检测吸波涂层内部缺陷的参数范围和检测能力.研究结果表明,通过有限元仿真分析为检测试验提供理论依据,使用5 ～ 10 mHz调制频率的锁相法可有效检测到3 mm×3 mm面积当量的缺陷,缺陷处的相位比无缺陷处的相位滞后,并且缺陷面积越大,相位滞后越大.
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