摘要
结构材料的力学性能是工程应用选型的重要指标,其过程涉及诸多因素,需要进行综合评价,研究并建立一个普适性的评价模型是科学优选材料的关键与核心.基于模糊层次分析法(FAHP)的思想和方法,提出了一种模糊综合评价模型用于材料应用选型.以优质碳素钢力学性能为例,建立了材料评价体系,采用层次分析法确定了指标权重(隶属度)、定义了评价指标等级、给出了模糊综合评判运算模型.采用该方法,对优质碳素结构钢7个力学性能进行综合评价,获得了力学性能的优选范畴,为该类材料选型应用提供了决策依据.
The mechanical property of constructional material is a very important index in the selection of engineering application and its process involves many aspects. Thus, establishing an universe evaluation model based on an overall assessment and reserch is the key to the scientific selection of good material. Based on the theory and approach of the fuzzy analytic hierarchy process, this article proposes a fuzzy synthetic evaluation model which can be applied to the selection of material. By using the example of the mechanical property of high-quality carbon steel, this article establishes a material evaluation system, determines the index weight （ the membership degree）, defines evaluation levels and proposes the fuzzy synthetic evaluation model. A comprehensive assessment of the high-quality carbon steel＇ s 7 mechanical properties is conducted by using this approach and the preferred scope of mechanical property is obtained, which provides decision-making basis for the selecion and application of this kind of material.
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第5期745-749,共5页
Journal of Sichuan Normal University（Natural Science）
基金
国家自然科学基金(51172150和50942025)资助项目
关键词
材料性能
评价模型
层次分析
模糊综合评价
material characteristic
evaluation model
analytic hierarchy process
fuzzy synthetic evaluation
