A predictive model towards understanding the effect of reinforcement agglomeration of on the stiffness of nanocomposites

Demir, E. C.; Benkaddour, A.; Aldrich, D. R.; McDermott, M. T.; Kim, C. I.; Ayranci, C.

Published in the Journal of Composite Materials, 2021

In this study, a continuum-based model was developed in combination with a statistical approach to develop a model that is not complicated yet can guide design engineers by predicting elastic modulus of nanocomposites. The model is based on a modified three-phase Mori-Tanaka model, which accounts for the filler, agglomerate, and matrix regions. The Monte-Carlo method was adopted to predict agglomeration tendency of nanofillers.


Simulation-Driven Design of Wood Framing Support Systems for Off-Site Construction Machinery

Martinez, P.; Livojevic, M.; Jajal, P.; Aldrich, D. R.; Al-Hussein, M. & Ahmad, R.

Published in the Journal of Construction Engineering and Management, 2020

To provide a more cost-effective solution for wood framing support systems, this paper proposes a simulation-driven redesign. The simulation model was built on existing data from current machinery, enabling users to modify design parameters and machine logic without incurring costs associated with prototyping.


Design and Development of a New Model for Predicting the Mechanical Properties of Three-Dimensional Braided Composite Materials

Aldrich, D. R.

Published in uAlberta ERA, 2018

The goal of this thesis is to present an investigation on three-dimensional braids produced from a rotary three-dimensional braider. Additionally, to develop a geometric and finite element models using sub-modelling. And to create a model for predicting the axial and transverse tensile elastic moduli of the 3D braids.


OSM-Classic: An optical imaging technique for accurately determining strain

Aldrich, D. R.; Ayranci, C. & Nobes, D. S.

Published in SoftwareX, 2017

OSM-Classic is a software that interrogates a series of images to determine elongation in a test sample and hence, strain of the specimen. It was designed to provide a graphical user interface that includes image processing with a dynamic region of interest.

Link - Download - Github

Characterization of polyurethane shape memory polymer processed by material extrusion additive manufacturing

Raasch, J.; Ivey, M.; Aldrich, D.; Nobes, D. S. & Ayranci, C.

Published in Additive Manufacturing, 2015

In this work, a commercial 3D-printer was used to produce 3D printed polyurethane-based SMP specimens. An annealing heat treatment was applied to some of the specimens. Mechanical and thermo-mechanical testing was conducted to study the effects of testing temperatures and annealing heat treatments on the tensile and shape memory properties of the samples.