Advances in Operations Research / 2019 / Article / Tab 3

Research Article

Ranking-Theory Methods for Solving Multicriteria Decision-Making Problems

Table 3

Decision matrix for selecting material for a sailing boat mast.

#MaterialCriteria
Specific strength (MPa)Specific modulus (GPa)Corrosion resistanceCost Category
SSSMCRCC
1 234

1AISI 102035.926.915
2AISI 104051.326.915
3ASTM A242 type 142.327.215
4AISI 4130194.927.243
5AISI 31625.625.143
6AISI 416 heat treated57.128.143
7AISI 431 heat treated71.428.143
8AA 6061 T6101.925.834
9AA 2024 T6141.926.134
10AA 2014 T6148.225.834
11AA 7075 T6180.425.934
12Ti–6Al–4V208.727.651
13Epoxy–70% glass fabric604.828.042
14Epoxy–63% carbon fabric416.266.541
15Epoxy–62% aramid fabric637.727.541

Source: [1]. Notes: CR scale: 1 = poor; 2 = fair; 3 = good; 4 = very good; 5 = excellent.
CC scale: 1 = very high; 2 = high; 3 = moderate; 4 = low; 5 = very low.

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