Fuzzy Logic Approach in Failure Mode and Effects Analysis for Risk Assessment

Considering the increasing competitiveness of the ceramic industry within the country, export volumes, and the standards it must meet, the quality expectations of customers have increased. In this field, quality tools, such as FMEA (Failure Mode and Effects Analysis), are used to quantify the risk levels of existing defects, identify and prioritize them, and guide corrective measures. However, the lack of specialized technicians, the inefficiency of the visual inspection process, subjectivity, and qualitative failures involving uncertainty impose limitations on FMEA. The fuzzy FMEA approach is proposed to address the limitations of FMEA. The fuzzy FMEA system was identified through a case study of an industrial production unit. The RPN values of FMEA and fuzzy FMEA were evaluated and compared. The results show that the fuzzy FMEA method is effective at prioritizing product defects in ceramic sanitary ware production.