Ezekiel Yorke

8 Questions 2 Answers 0 Followers

Questions related from Ezekiel Yorke

Can SimaPro be used to simulate/analyse Biodegradation of Specimens?

I am looking at ways to investigate the biodegradation of 3D printed specimen as part of my research. To what extent can SimaPro be used to do this? The idea is to demonstrate the biodegradation...

03 July 2024 2,714 2 View

Am I "allowed" to change numeric factors to nominal categoric after establishing a DoE in Design Expert??

I generated an I-Optimal DoE with only numeric factors (4 of them) with responses. After conducting my experiments, I was getting some strange ANOVA R squared values for some responses that...

08 June 2024 4,375 2 View

Is it possible to obtain ANFIS Data for Genetic Algorithm Optimisation in MATLAB?

I use Design Expert to generate regression equations from raw input data. These regression equations are integrated into MATLAB to perform genetic algorithm single and multi-objective optimisation...

28 May 2024 2,744 1 View

What are some useful steps for addressing low predictive R squared values?

I am measuring the surface roughness of 3D printed tensile specimens, that have different raster angles and raster widths. Calibration and proper fixture of the specimens are set up to conduct...

25 April 2024 2,888 1 View

Which Regression Equation Should I use from Design Expert for MATLAB Single & Multi-Objective Optimisation?

I would like to utilise the correct regression equation for conducting Objective Optimisations using MATLAB's Optimisation Tool. When using Design Expert, I'm presented with the Actual factors or...

23 January 2024 8,036 2 View

Advice on "Lack of fit" and "replicate" points for an I Optimal Design of Experiments?

I'm looking to develop a DoE using an I Optimal design for 3D printing process parameters. However, I'm looking at two Run parameters (I'm using the Design Expert software): "Lack-of-fit points"...

16 May 2022 3,563 1 View

COMSOL: How do I model an Anisotropic Nonlinear Elastic Model for Tensile/Compression Simulation?

Using COMSOL Multiphysics, I am aiming to model and simulate the compression and tensile test scenarios of 3D printed samples (ABS, PLA, PETG). However, it would appear that the default equations...

30 April 2021 9,882 3 View

Evaluating the Value of Simulation-only PhD Theses in a Covid-Stricken Environment

As a 2nd-year PhD researcher, I have been curious about the number of simulation-only PhD theses that exist in fields such as Engineering as well as unrelated fields as well. There is of course...

01 January 1970 2,977 1 View