| الملخص: | Polymer matrix material are polymer materials that exhibit the property of being flexible or moldability when heated to a certain temperature, and then solidify again when cooled. These material offer various benefits, including reusability, durability, moisture resistance, and rapid processing. Therefore, material selection is a critical aspect for engineers due to the wide variety of material that have comparable attributes that meet the requirements of the product design specification. This study integrates Criteria Importance Through Inter criteria Correlation (CRITIC) - Technique Order Preference by Similarity to Ideal Solution (TOPSIS) with the PDCA cycle to select polymer matrix for use in natural fibre reinforced polymer composites in cap toe shoes. The results indicate that polyamide (PA), when assessed using CRITIC-TOPSIS method and PDCA cycle, emerges as a potential material for polymer matrix composite material in cap toe shoes, achieving the highest rating among the alternatives. The decision was based on criteria such as performance, lightweight properties, and most environmental friendliness. By providing specific tools for each phase, the integration of CRITIC-TOPSIS and the PDCA cycle significantly influenced the material selection process. Incorporating additional variables in future studies could further enhance the comprehensive of the selection process © Published under licence by IOP Publishing Ltd.
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