Botha, NKok, SInglis, HM2013-03-252013-03-252012-12Botha, N, Kok, S and Inglis, HM. 2012. Finite element modeling of corneal strip extensometry. In: 8th South African Conference on Computational and Applied Mechanics (SACAM 2012), Johannesburg, South Africa, 3-5 September 2012http://hdl.handle.net/10204/66158th South African Conference on Computational and Applied Mechanics (SACAM 2012), Johannesburg, South Africa, 3-5 September 2012Corneal biomechanical properties are an important element in the study of corneal biomechanics. There are currently two techniques to obtain these properties; an inflation test and the strip extensiometry test. As the inflation test has been numerically modelled in several studies, this study focusses on accurately modelling the strip extensiometry test. Two methods were considered to simulate the experimental conditions namely, a single phase and a two phase method. A finite element model of the corneal strip specimen was developed using an elastic fibre reinforced constitutive model to describe the corneal microstructure. The experimental conditions were simulated by defining prescribed displacements to simulate the required phases for each method. The results indicated that by using the two phase method, which is a more accurate description of the experimental setup that no additional post processing is required to obtain a reaction force response which correlates with experimental data.enCorneaStrip extensometryFinite element analysisBiomechanical propertiesCorneal strip extensometryConference PresentationBotha, N., Kok, S., & Inglis, H. (2012). Finite element modeling of corneal strip extensometry. SAAM. http://hdl.handle.net/10204/6615Botha, N, S Kok, and HM Inglis. "Finite element modeling of corneal strip extensometry." (2012): http://hdl.handle.net/10204/6615Botha N, Kok S, Inglis H, Finite element modeling of corneal strip extensometry; SAAM; 2012. http://hdl.handle.net/10204/6615 .TY - Conference Presentation AU - Botha, N AU - Kok, S AU - Inglis, HM AB - Corneal biomechanical properties are an important element in the study of corneal biomechanics. There are currently two techniques to obtain these properties; an inflation test and the strip extensiometry test. As the inflation test has been numerically modelled in several studies, this study focusses on accurately modelling the strip extensiometry test. Two methods were considered to simulate the experimental conditions namely, a single phase and a two phase method. A finite element model of the corneal strip specimen was developed using an elastic fibre reinforced constitutive model to describe the corneal microstructure. The experimental conditions were simulated by defining prescribed displacements to simulate the required phases for each method. The results indicated that by using the two phase method, which is a more accurate description of the experimental setup that no additional post processing is required to obtain a reaction force response which correlates with experimental data. DA - 2012-12 DB - ResearchSpace DP - CSIR KW - Cornea KW - Strip extensometry KW - Finite element analysis KW - Biomechanical properties KW - Corneal strip extensometry LK - https://researchspace.csir.co.za PY - 2012 T1 - Finite element modeling of corneal strip extensometry TI - Finite element modeling of corneal strip extensometry UR - http://hdl.handle.net/10204/6615 ER -