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Journal Articles

Design Optimization of Lattice Structures Under Impact Loading for Additive Manufacturing

Nathan Hertlein, Kumar Vemaganti, Sam Anand
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. November 2024, 146(11): 111701.
Paper No: MD-23-1795
https://doi.org/10.1115/1.4065065
Published Online: April 9, 2024
View Article titled, Design Optimization of Lattice Structures Under Impact Loading for Additive Manufacturing
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Topics: Design, Optimization, Boundary-value problems, Additive manufacturing
Journal Articles

Bayesian Optimization of Equilibrium States in Elastomeric Beams

David Yoo, Nathan Hertlein, Vincent W. Chen, Carson L. Willey, Andrew Gillman, Abigail Juhl, Sam Anand, Kumar Vemaganti, Philip R. Buskohl
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. November 2021, 143(11): 111702.
Paper No: MD-20-1754
https://doi.org/10.1115/1.4050743
Published Online: May 28, 2021
View Article titled, Bayesian Optimization of Equilibrium States in Elastomeric Beams
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Topics: Design, Displacement, Optimization, Fourier series, Equilibrium (Physics)
Includes: Supplementary data
Proceedings Papers

Bayesian Optimization of Energy-Absorbing Lattice Structures for Additive Manufacturing

Nathan Hertlein, Kumar Vemaganti, Sam Anand
Proc. ASME. IMECE2020, Volume 6: Design, Systems, and Complexity, V006T06A028, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-23377
https://doi.org/10.1115/IMECE2020-23377
View Paper titled, Bayesian Optimization of Energy-Absorbing Lattice Structures for Additive Manufacturing
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Topics: Additive manufacturing, Design, Optimization
Proceedings Papers

Bayesian Optimization of Target Buckling Shapes in Constrained Elastomeric Beams With Geometric Uncertainty

Nathan Hertlein, David Yoo, Philip R. Buskohl, Kumar Vemaganti, Sam Anand
Proc. ASME. IDETC-CIE2020, Volume 11A: 46th Design Automation Conference (DAC), V11AT11A058, August 17–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22608
https://doi.org/10.1115/DETC2020-22608
View Paper titled, Bayesian Optimization of Target Buckling Shapes in Constrained Elastomeric Beams With Geometric Uncertainty
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Topics: Additive manufacturing, Buckling, Design, Optimization, Shapes, Uncertainty
Journal Articles

Testing the Validity of Greenwood and Tripp’s Sum Surface Assumption for Elastic-Plastic Contact

Ashutosh Roy, Bhargava Sista, Kumar Vemaganti
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2020, 142(10): 101501.
Paper No: TRIB-19-1456
https://doi.org/10.1115/1.4046875
Published Online: May 18, 2020
View Article titled, Testing the Validity of Greenwood and Tripp’s Sum Surface Assumption for Elastic-Plastic Contact
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Topics: Compression, Displacement, Friction, Shear (Mechanics), Simulation, Surface roughness, Testing, Stress, Finite element analysis, Modeling
Journal Articles

Anisotropy Characterization Using Abbott–Firestone Curves

Ashutosh Roy, Kumar Vemaganti
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. February 2020, 142(2): 024501.
Paper No: TRIB-19-1150
https://doi.org/10.1115/1.4045163
Published Online: November 18, 2019
View Article titled, Anisotropy Characterization Using Abbott–Firestone Curves
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Topics: Anisotropy
Journal Articles

A Computational Study of Dry Static Friction Between Elastoplastic Surfaces Using a Statistically Homogenized Microasperity Model

Bhargava Sista, Kumar Vemaganti
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. April 2015, 137(2): 021601.
Paper No: TRIB-14-1126
https://doi.org/10.1115/1.4028998
Published Online: April 1, 2015
View Article titled, A Computational Study of Dry Static Friction Between Elastoplastic Surfaces Using a Statistically Homogenized Microasperity Model
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Topics: Friction, Shear stress, Stress, Surface roughness, Deformation, Shear (Mechanics)
Proceedings Papers

A Strain Rate Dependent Constitutive Model for Liver Tissue: Experiments and Modeling

Esra Roan, Kumar Vemaganti
Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 521-522, June 25–29, 2008
Publisher: American Society of Mechanical Engineers
Paper No: SBC2008-192921
https://doi.org/10.1115/SBC2008-192921
View Paper titled, A Strain Rate Dependent Constitutive Model for Liver Tissue: Experiments and Modeling
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Topics: Biological tissues, Constitutive equations, Liver, Modeling, Diseases, Wounds, Traffic accidents
Proceedings Papers

Viscohyperelastic Material Modeling of Liver Tissue

Kumar Vemaganti, Esra Roan
Proc. ASME. SBC2007, ASME 2007 Summer Bioengineering Conference, 433-434, June 20–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: SBC2007-176728
https://doi.org/10.1115/SBC2007-176728
View Paper titled, Viscohyperelastic Material Modeling of Liver Tissue
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Topics: Biological tissues, Liver, Modeling, Soft tissues, Compression, Continuum mechanics, Patient diagnosis, Stress, Surgery, Tissue engineering
Proceedings Papers

AFM Indentation and Material Property Identification of Soft Hydrogels

Sakya Tripathy, Edward Berger, Kumar Vemaganti
Proc. ASME. IDETC-CIE2007, Volume 3: 19th International Conference on Design Theory and Methodology; 1st International Conference on Micro- and Nanosystems; and 9th International Conference on Advanced Vehicle Tire Technologies, Parts A and B, 659-667, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-35451
https://doi.org/10.1115/DETC2007-35451
View Paper titled, AFM Indentation and Material Property Identification of Soft Hydrogels
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Topics: Atomic force microscopy, Hydrogels, Materials properties, Agar, Engineering simulation, Hardening, Simulation, Algorithms, Deformation, Elastic moduli
Journal Articles

The Nonlinear Material Properties of Liver Tissue Determined From No-Slip Uniaxial Compression Experiments

Esra Roan, Kumar Vemaganti
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. June 2007, 129(3): 450–456.
https://doi.org/10.1115/1.2720928
Published Online: November 19, 2006
View Article titled, The Nonlinear Material Properties of Liver Tissue Determined From No-Slip Uniaxial Compression Experiments
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Topics: Biological tissues, Compression, Liver, Stress, Friction, Materials properties