Selection of Material for Optimal Design Using Multi-criteria Decision Making

Selection of suitable material in all the engineering design is often observed to be a multi-criterion decision-making problem with conflicting and different objectives. This paper presents a methodology to evaluate optimum material for engineering design using an integrated approach, in which criteria weights are computed using the entropy method and ranking of the alternatives is computed using the TOPSIS (Technique for order performance by similarity to ideal solution) method. In this research seven number of alternative martial and six criteria for material selection is used for the optimal design. The result from the research shows that nitridedd steel material is best for the engineering design. The procedure is illustrated using a case study.