Hydraulics & Waterways

Oral

394480 - Application of 3D Printed Hardscape Features within Hydraulic Physical Models

Tuesday, June 5
8:30 AM - 10:00 AM
Location: Greenway CD
Co-Authors: Donald Baker, Prairie Village, KS – Water Resources Solutions, LLC; Jerry Richardson, Kansas City, MO – University of Missouri - Kansas City

The construction of hardscape features in hydraulic physical models requires a high degree of precision to ensure proper results and feature integrity. Small shifts in cross sectional area, degradation of the feature material, or changes in material shape during testing are challenges faced when constructing unique prototype design features at model scale. Furthermore, the physical modeling design phase may be governed entirely by the availability of standard sized construction materials. The use of 3D printing offers a cost and time efficient solution to construction of hardscape features that must be precise, non-standard size, or sturdy enough to conduct testing.
3D printed hardscape features were constructed and placed within two separate physical models. First, a sewer main, concrete gabions, and retaining wall were modeled and 3D printed to ensure feature integrity and proper model scale. The features were tested within a movable-bed distorted model to determine channel bed degradation along the bank structures. Also, model scale baffles were 3D printed to simulate and test a proposed baffled apron design within a rigid-bed distorted physical model to test energy dissipation and final scour depth. In both cases, the hard plastic used to 3D print these hardscape features performed better than wooden or foam materials previously used because they were not susceptible to warping or degradation during testing. Printed parts were constructed at model scale within 0.01 inches of their required size on a distorted scale and preserved the necessary cross-sectional area precision. The timely construction of these features also allowed for reprinting if design or scaling parameters were changed. The simplicity, accuracy, and flexibility of 3D printed parts within physical models provides an effective solution to the construction of dimensionally critical components.

Jonathan G. Daldalian, Missouri

Graduate Student
Water Resources Solutions, LLC

Jonathan Daldalian is an Intern Water Resources Engineer with 3.5 years of interdisciplinary engineering experience that includes manufacturing, land development, and water resources. He is currently pursuing his professional engineering license in the State of Missouri.

A graduate of University of Missouri-Kansas City with a bachelor of science degree in Civil Engineering, Daldalian was active in the Design Build Institute of America, the American Society of Civil Engineers, and the ASCE Steel Bridge Team. He has experience designing turbine engine repair tooling, machinery safety guards, and robotics programming; sanitary, storm water, and grading design for existing and new construction sites; urban and rural watershed analysis; open channel flow numerical modeling; and construction of hydraulic physical models.

Credentials
M.S. Environmental Engineering, University of Missouri-Kansas City, Expected May 2018.
B.S. Civil Engineering, University of Missouri-Kansas City, 2017.
B.A. History & Political Science, Rockhurst University, 2011.

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