During the manufacturing of fibre-reinforced laminates, undesired phenomena are produced, among which the residual stresses need investigation and analysis. The authors have previously presented the research done on the predictive modelling and measurement of the distortions happening during the manufacturing of fibre metal laminates (FML). In this paper, primary measurements of residual stresses are presented. First, the mechanisms governing the development of residual stresses in polymeric laminates are described. Then, the measurement techniques applicable to composite and hybrid materials are reviewed. The hole-drilling method is used to estimate the stress levels in the aluminium sheet of the FML. The results give a new understanding of the stress state in the FML. Comparisons made with the model predictions show the consistency of the results and indeed the need for further improvements for the model validations in terms of the residual stress values in the aluminium sheets.

在纤维增强层压板的制造过程中，会产生不希望的现象，其中残余应力需要进行调查和分析。作者先前已经介绍了在预测模型和测量纤维金属层压板（FML）过程中发生的变形方面所做的研究。在本文中，提出了残余应力的主要测量方法。首先，描述了控制聚合物层压板中残余应力发展的机理。然后，回顾了适用于复合材料和混合材料的测量技术。钻孔方法用于估算FML铝板中的应力水平。结果使人们对FML中的应力状态有了新的认识。