David Adam Ehrhardt

2025

Flow-Induced Strain of Parachute Textiles with Multiscale Digital Image Correlation

Phillippe, C. A., Ehrhardt, D., Panerai, F. & Villafañe Roca, L., 2025, AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sustainable Shape Memory Elastomers with Reduced Melt Viscosity and Enhanced Stiffness

Osti, N. C., Remy, R. A., Ehrhardt, D. A., Hensley, D. K., Chen, J., Mamontov, E., Advincula, R. & Nguyen, N. A., Feb 28 2025, In: ACS Applied Polymer Materials. 7, 4, p. 2554-2566 13 p.

Research output: Contribution to journal › Article › peer-review

2024

Fluid-Structure Interactions of a Fin over a Compliant Panel in Supersonic Flow

Mills, J. G., Dutton, J. C., Ehrhardt, D. A. & Elliott, G., Dec 2024, In: AIAA journal. 62, 12, p. 4574-4588 15 p.

Research output: Contribution to journal › Article › peer-review

PSP Investigation of a Hemispherically Rounded Blunt Fin over a Compliant Panel in Supersonic Flow

Mills, J. G., Dutton, J. C., Ehrhardt, D. A. & Elliott, G. S., 2024, AIAA SciTech Forum and Exposition, 2024. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA SciTech Forum and Exposition, 2024).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2023

Combined Stereo Digital Image Correlation and Infrared Measurements of a Notional High-Speed Aircraft Panel in the NASA 8 Foot High Temperature Tunnel

Beberniss, T. J. & Ehrhardt, D. A., 2023, AIAA SciTech Forum and Exposition, 2023. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA SciTech Forum and Exposition, 2023).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Fluid-Structure Interactions of a Hemispherically Rounded Blunt Fin over a Compliant Panel in Mach 2 Flow

Mills, J. G., Dutton, J. C., Ehrhardt, D. A. & Elliott, G. S., 2023, AIAA Aviation and Aeronautics Forum and Exposition, AIAA AVIATION Forum 2023. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Aviation and Aeronautics Forum and Exposition, AIAA AVIATION Forum 2023).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2022

Aero-Optical Measurements of the Response of a Thin Panel at Mach 6

Riley, Z. B., Hagen, B. & Ehrhardt, D. A., 2022, In: AIAA journal. 60, 3, p. 1522-1536 15 p.

Research output: Contribution to journal › Article › peer-review

Evaluation of reduced-order aeroelastic simulations for shock-dominated flows

Brouwer, K. R., Perez, R. A., Beberniss, T. J., Spottswood, S. M. & Ehrhardt, D. A., Jan 2022, In: Journal of Fluids and Structures. 108, 103429.

Research output: Contribution to journal › Article › peer-review

Open Access

2021

Experiments on a thin panel excited by turbulent flow and shock/boundary-layer interactions

Brouwer, K. R., Perez, R. A., Beberniss, T. J., Spottswood, S. M. & Ehrhardt, D. A., Jul 2021, In: AIAA journal. 59, 7, p. 2737-2752 16 p.

Research output: Contribution to journal › Article › peer-review

Fluid-structure interaction on a thin panel including shock impingement effects

Brouwer, K. R., Perez, R. A., Beberniss, T. J., Spottswood, S. M. & Ehrhardt, D. A., 2021, AIAA Scitech 2021 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, p. 1-22 22 p. (AIAA Scitech 2021 Forum).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Investigation of aeroelastic instabilities for a thin panel in turbulent flow

Brouwer, K. R., Perez, R. A., Beberniss, T. J., Spottswood, S. M., Ehrhardt, D. A. & Wiebe, R., Jun 2021, In: Nonlinear Dynamics. 104, 4, p. 3323-3346 24 p.

Research output: Contribution to journal › Article › peer-review

Supersonic aerothermoelastic experiments of aerospace structures

Spottswood, S. M., Smarslok, B. P., Perez, R. A., Beberniss, T. J., Hagen, B. J., Riley, Z. B., Brouwer, K. R. & Ehrhardt, D. A., Dec 1 2021, In: AIAA journal. 59, 12, p. 5029-5048 20 p.

Research output: Contribution to journal › Article › peer-review

Visible Light Refraction Effects on High-Speed Stereo Digital Image Correlation Measurement of a Thin Panel in Mach 2 Flow

Beberniss, T. J. & Ehrhardt, D. A., Jun 2021, In: Experimental Techniques. 45, 3, p. 241-255 15 p.

Research output: Contribution to journal › Article › peer-review

2020

Dynamic Response of a Curved Plate Subjected to a Moving Local Heat Gradient

Ehrhardt, D. A., Gockel, B. T. & Beberniss, T. J., 2020, Nonlinear Structures and Systems, Volume 1 - Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. Kerschen, G., Brake, M. R. W. & Renson, L. (eds.). Springer, p. 205-208 4 p. (Conference Proceedings of the Society for Experimental Mechanics Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Experimental Nonlinear Dynamics of a Post-buckled Composite Laminate Plate

Ferguson, J. I., Spottswood, S. M., Ehrhardt, D. A., Perez, R. A., Snyder, M. P. & Obenchain, M. B., 2020, Nonlinear Structures and Systems, Volume 1 - Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. Kerschen, G., Brake, M. R. W. & Renson, L. (eds.). Springer, p. 103-114 12 p. (Conference Proceedings of the Society for Experimental Mechanics Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Experiments on probing the configuration space of post-buckled panels

Ehrhardt, D., Virgin, L. N. & Spottswood, S. M., Dec 1 2020, In: Journal of Applied Mechanics, Transactions ASME. 87, 12, 121005.

Research output: Contribution to journal › Article › peer-review

Response of a thin panel to aerothermal loading at mach 6

Riley, Z. B., Perez, R. A. & Ehrhardt, D. A., 2020, AIAA Scitech 2020 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Scitech 2020 Forum; vol. 1 PartF).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2019

Experimentally measuring an isolated branch of Nonlinear normal modes

Ehrhardt, D. A., Hill, T. L. & Neild, S. A., Sep 29 2019, In: Journal of Sound and Vibration. 457, p. 213-226 14 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Experiments on the thermal post-buckling of panels, including localized heating

Ehrhardt, D. A. & Virgin, L. N., Jan 20 2019, In: Journal of Sound and Vibration. 439, p. 300-309 10 p.

Research output: Contribution to journal › Article › peer-review

Exploring the response of a thin, flexible panel to shock-turbulent boundary-layer interactions

Spottswood, S. M., Beberniss, T. J., Eason, T. G., Perez, R. A., Donbar, J. M., Ehrhardt, D. A. & Riley, Z. B., Mar 17 2019, In: Journal of Sound and Vibration. 443, p. 74-89 16 p.

Research output: Contribution to journal › Article › peer-review

System identification to estimate the nonlinear modes of a gong

Piombino, D., Allen, M. S., Ehrhardt, D., Beberniss, T. & Hollkamp, J. J., 2019, Nonlinear Dynamics - Proceedings of the 36th IMAC, A Conference and Exposition on Structural Dynamics 2018. Kerschen, G. (ed.). Springer, p. 121-136 16 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2018

Force appropriation of nonlinear structures

Renson, L., Hill, T. L., Ehrhardt, D. A., Barton, D. A. W. & Neild, S. A., Jun 1 2018, In: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 474, 2214, 20170880.

Research output: Contribution to journal › Article › peer-review

Open Access

High-speed 3D DIC random dynamic strain measurement of a panel subjected to Mach 2 flow

Beberniss, T. & Ehrhardt, D., 2018, Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. Moens, D., Desmet, W., Pluymers, B. & Rottiers, W. (eds.). KU Leuven, Departement Werktuigkunde, p. 2095-2105 11 p. (Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Response of a curved panel subjected to local heating and base excitation

Ehrhardt, D. A., Gockel, B. T. & Beberniss, T. J., 2018, Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. Moens, D., Desmet, W., Pluymers, B. & Rottiers, W. (eds.). KU Leuven, Departement Werktuigkunde, p. 1223-1233 11 p. (Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Veering and nonlinear interactions of a clamped beam in bending and torsion

Ehrhardt, D. A., Hill, T. L., Neild, S. A. & Cooper, J. E., Mar 3 2018, In: Journal of Sound and Vibration. 416, p. 1-16 16 p.

Research output: Contribution to journal › Article › peer-review

2017

Dynamic response of a thin panel subjected to a shock wave impingement and thermal buckling

Beberniss, T. J., Spottswood, S. M., Ehrhardt, D. A. & Perez, R., 2017, 33rd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, (33rd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Finite element model calibration of a nonlinear perforated plate

Ehrhardt, D. A., Allen, M. S., Beberniss, T. J. & Neild, S. A., Mar 31 2017, In: Journal of Sound and Vibration. 392, p. 280-294 15 p.

Research output: Contribution to journal › Article › peer-review

Full-field linear and nonlinear measurements using Continuous-Scan Laser Doppler Vibrometry and high speed Three-Dimensional Digital Image Correlation

Ehrhardt, D. A., Allen, M. S., Yang, S. & Beberniss, T. J., Mar 1 2017, In: Mechanical Systems and Signal Processing. 86, p. 82-97 16 p.

Research output: Contribution to journal › Article › peer-review

High-speed 3D digital image correlation vibration measurement: Recent advancements and noted limitations

Beberniss, T. J. & Ehrhardt, D. A., Mar 1 2017, In: Mechanical Systems and Signal Processing. 86, p. 35-48 14 p.

Research output: Contribution to journal › Article › peer-review

Nonlinear model identification and spectral submanifolds for multi-degree-of-freedom mechanical vibrations

Szalai, R., Ehrhardt, D. & Haller, G., 2017, In: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 473, 2202, 20160759.

Research output: Contribution to journal › Article › peer-review

Open Access

The measurement of a nonlinear resonant decay using continuous-scan laser doppler vibrometry

Ehrhardt, D. A., Allen, M. S. & Beberniss, T. J., 2017, Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics and Laser Vibrometry - Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics. Di Maio, D. & Castellini, P. (eds.). Springer, p. 97-104 8 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 8B).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2016

Connecting nonlinear normal modes to the forced response of a geometric nonlinear structure with closely spaced modes

Renson, L., Ehrhardt, D. A., Barton, D. A. W., Neild, S. A. & Cooper, J. E., 2016, Proceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics. Sas, P., Moens, D. & van de Walle, A. (eds.). KU Leuven, Departement Werktuigkunde, p. 2775-2784 10 p. (Proceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Experimental and numerical investigation of the nonlinear bending-torsion coupling of a clamped-clamped beam with centre masses

Ehrhardt, D. A., Neild, S. A. & Cooper, J. E., 2016, Nonlinear Dynamics. Kerschen, G. (ed.). Springer, p. 97-106 10 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Experimental nonlinear dynamics and chaos of post-buckled plates

Wiebe, R. & Ehrhardt, D., 2016, Dynamic Behavior of Materials. Kerschen, G. (ed.). Springer, p. 199-202 4 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Measurement of nonlinear normal modes using mono-harmonic force appropriation: Experimental investigation

Ehrhardt, D. A., Allen, M. S. & Beberniss, T. J., 2016, Dynamic Behavior of Materials. Kerschen, G. (ed.). Springer, p. 241-254 14 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Measurement of nonlinear normal modes using multi-harmonic stepped force appropriation and free decay

Ehrhardt, D. A. & Allen, M. S., Aug 1 2016, In: Mechanical Systems and Signal Processing. 76-77, p. 612-633 22 p.

Research output: Contribution to journal › Article › peer-review

Nonlinear reduced order modeling of a curved axi-symmetric perforated plate: Comparison with experiments

Ehrhardt, D. A. & Allen, M. S., 2016, Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics. De Clerck, J. & Epp, D. S. (eds.). Springer, p. 437-445 9 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 8).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2015

Linear and nonlinear response of a rectangular plate measured with continuous-scan laser doppler vibrometry and 3D-digital image correlation

Ehrhardt, D. A., Yang, S., Beberniss, T. J. & Allen, M. S., 2015, MEMS and Nanotechnology - Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics. Starman, L., Prorok, B. C., Hay, J. & Shaw, G. (eds.). Springer, p. 251-263 13 p. A23. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 8).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nonlinear normal modes in finite element model validation of geometrically nonlinear flat and curved beams

Ehrhardt, D. A., Kuether, R. J. & Allen, M. S., 2015, 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics Inc., (56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Temporal aliasing in high-speed 3-dimensional digital image correlation vibration measurement

Beberniss, T. J. & Ehrhardt, D. A., 2015, 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics Inc., (56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2014

A review of signal processing techniques for continuous-scan Laser Doppler Vibrometry

Yang, S., Ehrhardt, D. & Allen, M. S., 2014, 26th Conference on Mechanical Vibration and Noise. American Society of Mechanical Engineers (ASME), (Proceedings of the ASME Design Engineering Technical Conference; vol. 8).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mode shape comparison using continuous-scan laser doppler vibrometry and high speed 3D digital image correlation

Ehrhardt, D. A., Yang, S., Beberniss, T. J. & Allen, M. S., 2014, Experimental Mechanics of Composite, Hybrid, and Multifunctional Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics. Foss, G. & Niezrecki, C. (eds.). Springer, p. 321-331 11 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 6).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mode shape comparison using continuous-scan laser doppler vibrometry and high speed 3D digital image correlation

Ehrhardt, D. A., Yang, S., Beberniss, T. J. & Allen, M. S., 2014, Experimental Mechanics of Composite, Hybrid, and Multifunctional Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics. Foss, G. & Niezrecki, C. (eds.). Springer, p. 321-331 11 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 6).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Numerical and experimental determination of nonlinear normal modes of a circular perforated plate

Ehrhardt, D. A., Harris, R. B. & Allen, M. S., 2014, Fracture and Fatigue - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics. Springer, p. 239-251 13 p. (Conference Proceedings of the Society for Experimental Mechanics Series; vol. 7).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2013

Experimental investigation of dynamic out of plane displacement error in 3D digital image correlation

Ehrhardt, D. A. & Beberniss, T. J., 2013, 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. AIAA 2013-1779. (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Experimental of investigation of dynamic out of plane displacement error in 3D digital image correlation

Ehrhardt, D. A. & Beberniss, T. J., 2013, 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. (54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2011

Non-contact experimental modal analysis of a curved beam using a full-field optical technique

Ehrhardt, D. A., Abanto-Bueno, J. L., Parks, C. D. & Shukla, A., 2011, 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. AIAA 2011-1945. (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

David Adam Ehrhardt

Research output

Search results