Matches in SemOpenAlex for { <https://semopenalex.org/work/W2561154150> ?p ?o ?g. }
- W2561154150 abstract "Nanoindentation involves probing a hard diamond tip into a material, where the load and the displacement experienced by the tip is recorded continuously. This load-displacement data is a direct function of material's innate stress-strain behavior. Thus, theoretically it is possible to extract mechanical properties of a material through nanoindentation. However, due to various nonlinearities associated with nanoindentation the process of interpreting load-displacement data into material properties is difficult. Although, simple elastic behavior can be characterized easily, a method to characterize complicated material behavior such as nonlinear viscoelasticity is still lacking. In this study, a nanoindentation-based material characterization technique is developed to characterize soft materials exhibiting nonlinear viscoelasticity. Nanoindentation experiment was modeled in finite element analysis software (ABAQUS), where a nonlinear viscoelastic behavior was incorporated using user-defined subroutine (UMAT). The model parameters were calibrated using a process called inverse analysis. In this study, a surrogate model-based approach was used for the inverse analysis. The different factors affecting the surrogate model performance are analyzed in order to optimize the performance with respect to the computational cost." @default.
- W2561154150 created "2017-01-06" @default.
- W2561154150 creator A5069062238 @default.
- W2561154150 date "2016-12-10" @default.
- W2561154150 modified "2023-09-27" @default.
- W2561154150 title "Parameter Estimation of a Nonlinear Burgers Model using Nanoindentation and Finite Element-based Inverse Analysis" @default.
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