3D Experimental optical analysis of titanium alloys for biomedical applications

摘要

In this paper is presented an example of experimental analysis of biomaterials based on optical measurement methodology. GOM optical system and Aramis software were used to perform 3D experimental optical analysis of titanium alloys for biomedical applications. The possibilities of using this method for analyzing materials for biomedical applications are discussed, and having in mind that the system used in this experimental analysis is utilized to solve problems in structural integrity analysis and determining properties of materials, it is concluded that this method is suitable for analysis of irregular object geometries made of various materials, as is often the case in biomedical applications. Considering that titanium alloys have high sensitivity to fatigue induced by notches, a sharp-notch tension test was performed. The goal of this in vitro study was to measure and analyze fracture behaviour of Ti6Al4V alloy specimens. The major strain field of the titanium alloy specimen for crack tip opening and fracture are presented. It is shown that the application of a modern 3D optical measuring method is useful in determining some of the key properties of metallic materials in biomedical applications.