Correlations between hardness and tensile strength of cracked aluminium plates repaired with composite patches. (2020)

• Record Type: Journal Article
• Authors: Dehuri, Bishnupriya; Soumya Pradhan, Shashwati
• Is Part Of: Materials today. Volume 21:Part 2(2020)
• Page Start: 1335
• Page End: 1339
• Publication Date: 2020
• Subjects: Composite -- Hardness -- Aluminium -- Tensile strength; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.01.171
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The correlations between Rockwell hardness and tensile strength of cracked aluminium plates repaired with composite patches were studied. Composite patch on tensile strength of woven fabric, glass/epoxy composite laminates and the aluminium plates having 3 mm thickness of the three different crack length of 5 mm, 10 mm and 15 mm. Tensile tests of composite patch are performed on [0/90], in case of two lay-ups were used, viz. 4-ply and 6-ply. Under the hardness and tensile loading conditions, there is an important role of the reinforcement fraction and matrix strength in effecting the behavior of composite. The tensile test and hardness test are compared regarding the different loading modes. Result in a significant overestimation of the tensile strength of the hardness test, especially when the matrix strength is relatively low. The tensile strength of two materials is reduced while the difference in the hardness increases