James Hartley

Mechanical Engineer

Author profile picture

Mechanical Engineer

jkyuan@sandia.gov

Biography

James Hartley is a mechanical engineer working with the Photovoltaics (PV) and Materials Technology Program at Sandia National Laboratories. His research interests include computational analysis using finite element methods in applications ranging from thermal analysis of complex systems to structural analysis of mechanically loaded assemblies. His current research focuses on developing multi-physics, multi-scale computational modeling methods towards understanding PV module packaging degradation. Mr. Hartley received both his bachelor’s and master’s degrees in mechanical engineering from the University of Southern California and is currently pursuing a PhD from the University of New Mexico.

Publications

Matthew Phillips, James Hartley, Ashley Maes, Charles Robinson, (2022). Instrumented Photovoltaic Modules for Environmental Characterization and Simulation Model Validation https://doi.org/10.2172/1870062 Publication ID: 80798

Christine Roberts, Ashley Maes, Anthony McMaster, Matthew Phillips, Charles Robinson, James Hartley, (2021). Relating Photovoltaic Module Stresses to Encapsulant Thermomechanics https://doi.org/10.2172/1891598 Publication ID: 76177

James Hartley, (2021). An integrated, multi-physics, multi-scale modeling capability for PV stressors and failures https://doi.org/10.2172/1886165 Publication ID: 75535

James Hartley, Martin Springer, (2021). Best practices for thermo-mechanical simulations of photovoltaic modules using the Finite Element Method https://www.osti.gov/servlets/purl/1888723 Publication ID: 75615

Matthew Phillips, James Hartley, Ashley Maes, Charles Robinson, (2021). Validation and implementation of a viscoelastic material model for analysis of an instrumented photovoltaic module mechanical test https://www.osti.gov/servlets/purl/1889343 Publication ID: 75888

Ian Slauch, Rishi Kumar, Farhan Rahman, Tala Sidawi, Jared Tracy, Rico Meier, David Fenning, James Hartley, William Gambogi, Mariana Bertoni, (2021). In-situ Mapping of Deformation in Crystalline Silicon Modules: Understanding the Effects of Viscoelasticity https://www.osti.gov/servlets/purl/1886162 Publication ID: 75517

Ian Slauch, Saurabh Vishwakarma, Jared Tracy, William Gambogi, Rico Meier, Farhan Rahman, James Hartley, Mariana Bertoni, (2021). Mapping Cell Deflection inside PV Modules: The Case of Glass-Glass vs. Glass-Backsheet https://www.osti.gov/servlets/purl/1873269 Publication ID: 78864

James Hartley, (2021). Effects of Frame Constraints on Internal Module Damage During Mechanical Load Testing https://doi.org/10.2172/1873265 Publication ID: 78873

James Hartley, (2021). Effects of Frame Constraints on Internal Module Damage During Mechanical Load Testing https://doi.org/10.1109/PVSC43889.2021.9519057 Publication ID: 78876

James Hartley, (2021). An integrated multi-physics multi-scale modeling capability for PV stressors and failures https://www.osti.gov/servlets/purl/1844054 Publication ID: 75412

Ashley Maes, Christine Roberts, James Hartley, (2020). Materials model development and instrumented PV module testing to improve finite element modeling capabilities https://www.osti.gov/servlets/purl/1826453 Publication ID: 71286

James Hartley, Nick Bosco, Martin Springer, (2020). Multi-Scale Modeling of Electrically Conductive Adhesive Interconnect Reliability https://www.osti.gov/servlets/purl/1822119 Publication ID: 74983

Joseph Meert, Michael Owen-Bellini, Peter Hacke, James Hartley, (2020). Computational Modeling of Photovoltaic Mini-Modules Undergoing Accelerated Stress Testing https://www.osti.gov/servlets/purl/1807382 Publication ID: 73730

Joseph Meert, Michael Owen-Bellini, Peter Hacke, James Hartley, (2020). Computational Modeling of Photovoltaic Mini-Modules Undergoing Accelerated Stress Testing https://www.osti.gov/servlets/purl/1807383 Publication ID: 73731

Ashley Maes, James Hartley, Charles Robinson, (2020). Instrumented Modules for Mechanical Environment Characterization and Simulation Model Validation https://www.osti.gov/servlets/purl/1807359 Publication ID: 73704

Ashley Maes, James Hartley, Charles Robinson, (2020). Instrumented Modules for Mechanical Environment Characterization and Simulation Model Validation https://www.osti.gov/servlets/purl/1807369 Publication ID: 73714

James Hartley, Ashley Maes, Scott Roberts, Joshua Stein, Michael Owen-Bellini, Laura Schelhas, Nick Bosco, (2020). Multi-scale Multi-physics Modeling for PV Reliability https://www.osti.gov/servlets/purl/1767372 Publication ID: 72720

Ashley Maes, James Hartley, Joshua Stein, (2020). Instrumented Modules for Environmental Characterization and Simulation Model Validation (SPARK Project) https://www.osti.gov/servlets/purl/1767892 Publication ID: 72754

Martin Springer, James Hartley, (2020). Materials characterization and multi-scale modeling of Electrically Conductive Adhesives https://www.osti.gov/servlets/purl/1768158 Publication ID: 72790

Ashley Maes, James Hartley, Christine Roberts, (2019). Multi-scale multi-physics modeling capabilities towards improving PV reliability https://www.osti.gov/servlets/purl/1643411 Publication ID: 66830

James Hartley, (2019). Multi-scale Multi-physics Modeling for PV Reliability https://www.osti.gov/servlets/purl/1678818 Publication ID: 65656

James Hartley, (2019). Multi-scale Multi-physics Modeling for PV Reliability https://www.osti.gov/servlets/purl/1641791 Publication ID: 64618

James Hartley, Ashley Maes, Joshua Stein, (2019). SPARK Project: Highly Instrumented Modules for Environmental Characterization and Simulation Model Validation https://www.osti.gov/servlets/purl/1641775 Publication ID: 70643

James Hartley, Ashley Maes, Michael Owen-Bellini, Thomas Truman, Edmund Elce, Allan Ward, Tariq Khraishi, Scott Roberts, (2019). Effects of Photovoltaic Module Materials and Design on Module Deformation Under Load https://doi.org/10.1109/PVSC40753.2019.8980842 Publication ID: 69124

James Hartley, Ashley Maes, Michael Owen-Bellini, Thomas Truman, Edmund Elce, Allan Ward, Tariq Khraishi, Scott Roberts, (2019). Effects of Photovoltaic Module Materials and Design on Module Deformation under Load Conference Record of the IEEE Photovoltaic Specialists Conference https://doi.org/10.1109/PVSC40753.2019.8980842 Publication ID: 68786

James Hartley, Ashley Maes, Joshua Stein, Scott Roberts, Nick Bosco, Schelhas Laura, (2019). Multi-scale Multi-physics Modeling for PV Reliability https://www.osti.gov/servlets/purl/1602127 Publication ID: 67114

James Hartley, Ashley Maes, Joshua Stein, Scott Roberts, Nick Bosco, Schelhas Laura, (2019). Multi-scale Multi-physics Modeling for PV Reliability https://www.osti.gov/servlets/purl/1602167 Publication ID: 67147

Ashley Maes, James Hartley, Christine Roberts, (2019). Thermal and Viscoelastic Behavior of Photovoltaic Module Encapsulants https://www.osti.gov/servlets/purl/1601929 Publication ID: 67066

James Hartley, Scott Roberts, Ashley Maes, (2018). Finite Element Models to Predict Module-Level Degradation Mechanisms and Reliability https://www.osti.gov/servlets/purl/1576083 Publication ID: 60326

Ashley Maes, James Hartley, Christine Roberts, (2018). Thermal and Viscoelastic Behavior of Polymer Films Used as Photovoltaic Module Encapsulants https://www.osti.gov/servlets/purl/1806953 Publication ID: 59536

James Hartley, Ashley Maes, Christine Roberts, Scott Roberts, Nick Bosco, Laura Schelhas, (2018). DuraMat Capability 2: Predictive Simulation Progress and Updates https://www.osti.gov/servlets/purl/1582267 Publication ID: 63834

James Hartley, Scott Roberts, (2018). Effects of Solar Cell Materials and Geometries on Thermally Induced Interfacial Stresses https://doi.org/10.1109/PVSC.2018.8547399 Publication ID: 62575

James Hartley, Scott Roberts, (2018). Effects of Solar Cell Materials and Geometries on Thermally Induced Interfacial Stresses Conference Record of the IEEE Photovoltaic Specialists Conference https://doi.org/10.1109/PVSC.2018.8547399 Publication ID: 62216

James Hartley, Scott Roberts, Nick Bosco, Laura Schelhas, (2018). Thermal-mechanical modeling of PV modules and components https://www.osti.gov/servlets/purl/1497551 Publication ID: 60796

James Hartley, Scott Roberts, Laura Schelhas, Nick Bosco, Christine Roberts, Ashley Maes, Kevin Leung, (2018). DuraMAT Predictive Simulation https://www.osti.gov/servlets/purl/1497552 Publication ID: 60797

James Hartley, Scott Roberts, Nick Bosco, Laura Schelhas, (2017). Thermal-mechanical modeling of PV modules and components https://www.osti.gov/servlets/purl/1510912 Publication ID: 54096

James Hartley, (2017). DuraMAT Predictive Simulation https://www.osti.gov/servlets/purl/1479216 Publication ID: 53730

James Hartley, (2017). Scoping assessments and review of sub-scale models in support of DuraMAT Predictive Simulation Capability Area #2 https://doi.org/10.2172/1371634 Publication ID: 57234

James Hartley, Scott Roberts, Nick Bosco, Laura Schelhas, (2017). Thermal-mechanical-electrical model for PV module-level mechanical failure mechanisms https://www.osti.gov/servlets/purl/1367261 Publication ID: 56424

James Hartley, Joshua Christian, Clifford Ho, (2015). Compensation of gravity induced heliostat deflections for improved optical performance Journal of Solar Energy Engineering, Transactions of the ASME https://www.osti.gov/servlets/purl/1079165 Publication ID: 33547

James Hartley, Clifford Ho, Joshua Christian, (2015). Numerical simulation of natural convection in solar cavity receivers Journal of Solar Energy Engineering, Transactions of the ASME https://www.osti.gov/servlets/purl/1141110 Publication ID: 27921

Clifford Ho, James Hartley, Cianan Sims, Jeremy Sment, (2012). Characterization of Metallized Polymer Films for Long-Distance Heliostat Applications (Paper) https://www.osti.gov/servlets/purl/1141111 Publication ID: 30379

Clifford Ho, James Hartley, Cianan Sims, Jeremy Sment, (2012). Characterization of Metallized Polymer Films for Long-Distance Heliostat Applications (Presentation) https://www.osti.gov/servlets/purl/1140904 Publication ID: 29859

James Hartley, Clifford Ho, Joshua Christian, (2012). Numerical Simulation of Natural Convection in Solar Cavity Receivers https://doi.org/10.1115/ES2012-91064 Publication ID: 29185

Clifford Ho, Cheryl Ghanbari, James Hartley, (2011). On-Sun Testing of a Heliostat Using Facets with Metallized Polymer Films (Powerpoint presentation) https://www.osti.gov/servlets/purl/1141206 Publication ID: 24414

Clifford Ho, Cheryl Ghanbari, James Hartley, (2011). On-Sun Testing of a Heliostat Using Facets with Metallized Polymer Films (Poster) https://www.osti.gov/servlets/purl/1688676 Publication ID: 24428

Clifford Ho, Cheryl Ghanbari, James Hartley, (2011). On-Sun Testing of a Heliostat Using Facets with Metallized Polymer Films https://www.osti.gov/servlets/purl/1140840 Publication ID: 23826

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