Additive manufacturing
Certifying and improving 3D printing technologies.
Key works
Laser beam shaping
Laser beam shaping designs the laser's intensity profile to control melt pools and temperatures in powder bed fusion.
The beam shape can be optimized for the melt pool geometry, or inverse-designed to follow a prescribed temperature field. Bead-on-plate experiments show how well thermal simulations hold across beam shapes.
Publications
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Scan-based fatigue prediction of DED-Arc additively manufactured steel components
Links the scanned as-built surface of arc-deposited steel directly to its fatigue life.
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Temperature control in powder bed fusion of metals via inverse-designed laser beam shapes
Designs the beam profile itself so that the melt pool follows a prescribed temperature field.
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From Digital to Real: Optimised and Functionally Integrated Shotcrete 3D Printing Elements for Multi-Storey Structures
Follows shotcrete 3D printing of a multi-storey building section from digital design to full-scale fabrication.
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The trace of heat: on the predictive power of modeling transient diffusion
Asks how much of the printed outcome a purely thermal model can actually predict.
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Quantifying thermal model accuracy in PBF-LB/M using statistical similarity tests against thermographic measurements
Measures how well thermal simulations match thermography, using statistical similarity tests.
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Predicting fatigue life of additively manufactured lattice structures using the image-based Finite Cell Method and average strain energy density
Predicts the fatigue life of printed lattices from CT scans, using the finite cell method and strain energy density.
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Validity of thermal simulation models for different laser beam shapes in bead-on-plate melting
Tests thermal models against bead-on-plate experiments across a range of beam shapes.
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Laser beam shape optimization in powder bed fusion of metals
Optimizes the laser intensity distribution to improve melt pool geometry.
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Two-scale analysis of spaceframes with complex additive manufactured nodes
Condenses complex printed 3D nodes into beam models so that entire space frames can be designed and analyzed.
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Space-time hp-finite elements for heat evolution in laser powder bed fusion additive manufacturing
Resolves the moving heat source by refining in space and time at once.
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Thermal Optimization of Additively Manufactured Lightweight Concrete Wall Elements with Internal Cellular Structure through Simulations and Measurements
Optimizes the cellular interior of printed lightweight concrete walls for insulation, validated by measurements.
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Bending behavior of octet-truss lattice structures: Modelling options, numerical characterization and experimental validation
Compares modeling options for the bending of printed octet-truss lattices, validated by experiments.
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Image-based numerical characterization and experimental validation of tensile behavior of octet-truss lattice structures
Characterizes the tensile behavior of printed octet-truss lattices from CT images, validated by experiments.
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Uncertainty quantification of microstructure variability and mechanical behavior of additively manufactured lattice structures
Quantifies how microstructural variability in printed lattices propagates to their mechanical behavior.
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Modeling and experimental validation of an immersed thermo-mechanical part-scale analysis for laser powder bed fusion processes
A part-scale thermomechanical model of laser powder bed fusion, validated against experiments.
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Image-based material characterization of complex microarchitectured additively manufactured structures
Characterizes the material behavior of complex printed microarchitectures from CT images.
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Numerical Evaluation of Advanced Laser Control Strategies Influence on Residual Stresses for Laser Powder Bed Fusion Systems
Compares laser scan speed and power strategies by the residual stresses they leave behind.
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Additive manufacturing in construction: A review on processes, applications, and digital planning methods
Reviews additive manufacturing processes, applications and digital planning methods in construction.
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Accurate Prediction of Melt Pool Shapes in Laser Powder Bed Fusion by the Non-Linear Temperature Equation Including Phase Changes
Predicts melt pool shapes in laser powder bed fusion with a nonlinear heat equation that includes phase changes.
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A hierarchical computational model for moving thermal loads and phase changes with applications to selective laser melting
A hierarchical model for moving heat sources and phase changes in selective laser melting.
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Biofabricated soft network composites for cartilage tissue engineering
Designs printed fiber networks that reinforce hydrogels for cartilage tissue engineering.
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An Integrated Design, Material, and Fabrication Platform for Engineering Biomechanically and Biologically Functional Soft Tissues
Combines 3D-printed fibers and polymer networks into strong, stretchable engineered tissues.