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Journal Articles

Design Optimization of Lattice Structures Under Impact Loading for Additive Manufacturing

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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 Articletitled, 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

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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 Articletitled, 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

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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

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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

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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 Articletitled, 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

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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 Articletitled, 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

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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 Articletitled, 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

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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

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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

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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

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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 Articletitled, 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