Application of integrated analytic hierarchy process (ahp) and technique of order preference by similarity to ideal solution (topsis) in material selection for automotive fender design

Goh, Chia Min (2015) Application of integrated analytic hierarchy process (ahp) and technique of order preference by similarity to ideal solution (topsis) in material selection for automotive fender design. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This report was study about integration of AHP and TOPSIS in the material selection process of an automotive fender design. The materials for the construction of automotive vehicles are rapidly changed from cast iron and low carbon steel towards lighter materials such as polymer matrix composites, magnesium alloys and aluminium alloys due to greater emphasis on the weight reduction vehicles. The material selection of the automotive fender will focused on lighter materials due to new trend in producing light weight vehicles in automotive industry. The main objective was to determine the best material for automotive fender using integrated AHP-TOPSIS method by identified important criteria in material selection of the automotive fender. The material selection was based on existing design and manufacturing process of the automotive fender. The material property needs to be considered in the material selection was Performance, Cost, Weight and Manufacturing criteria. Ten candidate materials proposed were High Strength Steel, Aluminium Alloy and Thermoplastic. First, AHP method was used to determine the weight of the selection criteria. Then, TOPSIS method was used to perform the ranking of alternatives. The integrated AHP-TOPSIS method was proven very successfully in multi-criteria decision making processes which involved many criteria and alternatives in the material selection of the automotive fender. As a conclusion, the PPE/PA/989 resin was selected as the best material for the automotive fender using integrated AHP-TOPSIS method.

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