James Hartley
Mechanical Engineer

Mechanical Engineer
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
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Phillips, M., Hartley, J., Maes, A., Robinson, C., & Robinson, C. (2022). Instrumented Photovoltaic Modules for Environmental Characterization and Simulation Model Validation. https://doi.org/10.2172/1870062 Publication ID: 80798
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Roberts, C., Maes, A., McMaster, A., Phillips, M., Robinson, C., Hartley, J., & Hartley, J. (2021). Relating Photovoltaic Module Stresses to Encapsulant Thermomechanics [Conference Presenation]. https://doi.org/10.2172/1891598 Publication ID: 76177
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Phillips, M., Hartley, J., Maes, A., Robinson, C., & Robinson, C. (2021). Validation and implementation of a viscoelastic material model for analysis of an instrumented photovoltaic module mechanical test [Presentation]. https://www.osti.gov/biblio/1889343 Publication ID: 75888
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Hartley, J., Springer, M., & Springer, M. (2021). Best practices for thermo-mechanical simulations of photovoltaic modules using the Finite Element Method [Presentation]. https://www.osti.gov/biblio/1888723 Publication ID: 75615
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Hartley, J. (2021). An integrated, multi-physics, multi-scale modeling capability for PV stressors and failures [Conference Poster]. https://doi.org/10.2172/1886165 Publication ID: 75535
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Slauch, I., Kumar, R., Rahman, F., Sidawi, T., Tracy, J., Meier, R., Fenning, D., Hartley, J., Gambogi, W., Bertoni, M., & Bertoni, M. (2021). In-situ Mapping of Deformation in Crystalline Silicon Modules: Understanding the Effects of Viscoelasticity [Presentation]. https://www.osti.gov/biblio/1886162 Publication ID: 75517
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Hartley, J. (2021). Effects of Frame Constraints on Internal Module Damage During Mechanical Load Testing [Conference Proceeding]. https://doi.org/10.1109/PVSC43889.2021.9519057 Publication ID: 78876
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Hartley, J. (2021). Effects of Frame Constraints on Internal Module Damage During Mechanical Load Testing [Conference Poster]. https://doi.org/10.2172/1873265 Publication ID: 78873
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Slauch, I., Vishwakarma, S., Tracy, J., Gambogi, W., Meier, R., Rahman, F., Hartley, J., Bertoni, M., & Bertoni, M. (2021). Mapping Cell Deflection inside PV Modules: The Case of Glass-Glass vs. Glass-Backsheet [Conference Proceeding]. https://www.osti.gov/biblio/1873269 Publication ID: 78864
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Hartley, J. (2021). An integrated multi-physics multi-scale modeling capability for PV stressors and failures [Presentation]. https://www.osti.gov/biblio/1844054 Publication ID: 75412
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Maes, A., Roberts, C., Hartley, J., & Hartley, J. (2020). Materials model development and instrumented PV module testing to improve finite element modeling capabilities [Presentation]. https://www.osti.gov/biblio/1826453 Publication ID: 71286
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Hartley, J., Bosco, N., Springer, M., & Springer, M. (2020). Multi-Scale Modeling of Electrically Conductive Adhesive Interconnect Reliability [Presentation]. https://www.osti.gov/biblio/1822119 Publication ID: 74983
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Meert, J., Owen-Bellini, M., Hacke, P., Hartley, J., & Hartley, J. (2020). Computational Modeling of Photovoltaic Mini-Modules Undergoing Accelerated Stress Testing [Conference Poster]. https://www.osti.gov/biblio/1807382 Publication ID: 73730
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Maes, A., Hartley, J., Robinson, C., & Robinson, C. (2020). Instrumented Modules for Mechanical Environment Characterization and Simulation Model Validation [Conference Poster]. https://www.osti.gov/biblio/1807359 Publication ID: 73704
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Maes, A., Hartley, J., Robinson, C., & Robinson, C. (2020). Instrumented Modules for Mechanical Environment Characterization and Simulation Model Validation [Conference Poster]. https://www.osti.gov/biblio/1807369 Publication ID: 73714
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Meert, J., Owen-Bellini, M., Hacke, P., Hartley, J., & Hartley, J. (2020). Computational Modeling of Photovoltaic Mini-Modules Undergoing Accelerated Stress Testing [Conference Poster]. https://www.osti.gov/biblio/1807383 Publication ID: 73731
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Springer, M., Hartley, J., & Hartley, J. (2020). Materials characterization and multi-scale modeling of Electrically Conductive Adhesives [Conference Poster]. https://www.osti.gov/biblio/1768158 Publication ID: 72790
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Maes, A., Hartley, J., Stein, J., & Stein, J. (2020). Instrumented Modules for Environmental Characterization and Simulation Model Validation (SPARK Project) [Conference Poster]. https://www.osti.gov/biblio/1767892 Publication ID: 72754
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Hartley, J., Maes, A., Roberts, S., Stein, J., Owen-Bellini, M., Schelhas, L., Bosco, N., & Bosco, N. (2020). Multi-scale Multi-physics Modeling for PV Reliability [Conference Poster]. https://www.osti.gov/biblio/1767372 Publication ID: 72720
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Maes, A., Hartley, J., Roberts, C., & Roberts, C. (2019). Multi-scale multi-physics modeling capabilities towards improving PV reliability [Conference Poster]. https://www.osti.gov/biblio/1643411 Publication ID: 66830
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Hartley, J. (2019). Multi-scale Multi-physics Modeling for PV Reliability [Presentation]. https://www.osti.gov/biblio/1678818 Publication ID: 65656
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Hartley, J. (2019). Multi-scale Multi-physics Modeling for PV Reliability [Conference Poster]. https://www.osti.gov/biblio/1641791 Publication ID: 64618
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Hartley, J., Maes, A., Stein, J., & Stein, J. (2019). SPARK Project: Highly Instrumented Modules for Environmental Characterization and Simulation Model Validation [Conference Poster]. https://www.osti.gov/biblio/1641775 Publication ID: 70643
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Hartley, J., Maes, A., Owen-Bellini, M., Truman, T., Elce, E., Ward, A., Khraishi, T., Roberts, S., & Roberts, S. (2019). Effects of Photovoltaic Module Materials and Design on Module Deformation Under Load [Conference Poster]. https://doi.org/10.1109/PVSC40753.2019.8980842 Publication ID: 69124
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Hartley, J., Maes, A., Owen-Bellini, M., Truman, T., Elce, E., Ward, A., Khraishi, T., Roberts, S., & Roberts, S. (2019). Effects of Photovoltaic Module Materials and Design on Module Deformation under Load [Conference Poster]. Conference Record of the IEEE Photovoltaic Specialists Conference. https://doi.org/10.1109/PVSC40753.2019.8980842 Publication ID: 68786
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Hartley, J., Maes, A., Stein, J., Roberts, S., Bosco, N., Laura, S., & Laura, S. (2019). Multi-scale Multi-physics Modeling for PV Reliability [Presentation]. https://www.osti.gov/biblio/1602127 Publication ID: 67114
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Hartley, J., Maes, A., Stein, J., Roberts, S., Bosco, N., Laura, S., & Laura, S. (2019). Multi-scale Multi-physics Modeling for PV Reliability [Presentation]. https://www.osti.gov/biblio/1602167 Publication ID: 67147
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Maes, A., Hartley, J., Roberts, C., & Roberts, C. (2019). Thermal and Viscoelastic Behavior of Photovoltaic Module Encapsulants [Conference Poster]. https://www.osti.gov/biblio/1601929 Publication ID: 67066
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Hartley, J., Roberts, S., Maes, A., & Maes, A. (2018). Finite Element Models to Predict Module-Level Degradation Mechanisms and Reliability [Conference Poster]. https://www.osti.gov/biblio/1576083 Publication ID: 60326
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Maes, A., Hartley, J., Roberts, C., & Roberts, C. (2018). Thermal and Viscoelastic Behavior of Polymer Films Used as Photovoltaic Module Encapsulants [Conference Poster]. https://www.osti.gov/biblio/1806953 Publication ID: 59536
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Hartley, J., Maes, A., Roberts, C., Roberts, S., Bosco, N., Schelhas, L., & Schelhas, L. (2018). DuraMat Capability 2: Predictive Simulation Progress and Updates [Presentation]. https://www.osti.gov/biblio/1582267 Publication ID: 63834
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Hartley, J., Roberts, S., & Roberts, S. (2018). Effects of Solar Cell Materials and Geometries on Thermally Induced Interfacial Stresses [Conference Poster]. https://doi.org/10.1109/PVSC.2018.8547399 Publication ID: 62575
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Hartley, J., Roberts, S., & Roberts, S. (2018). Effects of Solar Cell Materials and Geometries on Thermally Induced Interfacial Stresses [Conference Poster]. Conference Record of the IEEE Photovoltaic Specialists Conference. https://doi.org/10.1109/PVSC.2018.8547399 Publication ID: 62216
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Hartley, J., Roberts, S., Schelhas, L., Bosco, N., Roberts, C., Maes, A., Leung, K., & Leung, K. (2018). DuraMAT Predictive Simulation [Conference Poster]. https://www.osti.gov/biblio/1497552 Publication ID: 60797
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Hartley, J., Roberts, S., Bosco, N., Schelhas, L., & Schelhas, L. (2018). Thermal-mechanical modeling of PV modules and components [Conference Poster]. https://www.osti.gov/biblio/1497551 Publication ID: 60796
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Hartley, J., Roberts, S., Bosco, N., Schelhas, L., & Schelhas, L. (2017). Thermal-mechanical modeling of PV modules and components [Conference Poster]. https://www.osti.gov/biblio/1510912 Publication ID: 54096
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Hartley, J. (2017). DuraMAT Predictive Simulation [Conference Poster]. https://www.osti.gov/biblio/1479216 Publication ID: 53730
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Hartley, J. (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
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Hartley, J., Roberts, S., Bosco, N., Schelhas, L., & Schelhas, L. (2017). Thermal-mechanical-electrical model for PV module-level mechanical failure mechanisms [Presentation]. https://www.osti.gov/biblio/1367261 Publication ID: 56424
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Hartley, J., Christian, J.M., Ho, C., & Ho, C. (2015). Compensation of gravity induced heliostat deflections for improved optical performance [Conference]. Journal of Solar Energy Engineering, Transactions of the ASME. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84994056529&origin=inward Publication ID: 33547
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Hartley, J., Ho, C., Christian, J., & Christian, J. (2015). Numerical simulation of natural convection in solar cavity receivers [Conference]. Journal of Solar Energy Engineering, Transactions of the ASME. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84994591736&origin=inward Publication ID: 27921
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Ho, C., Hartley, J., Sims, C., Sment, J., & Sment, J. (2012). Characterization of Metallized Polymer Films for Long-Distance Heliostat Applications (Paper) [Conference]. https://www.osti.gov/biblio/1141111 Publication ID: 30379
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Ho, C., Hartley, J., Sims, C., Sment, J., & Sment, J. (2012). Characterization of Metallized Polymer Films for Long-Distance Heliostat Applications (Presentation) [Conference]. https://www.osti.gov/biblio/1140904 Publication ID: 29859
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Hartley, J., Ho, C., Christian, J., & Christian, J. (2012). Numerical Simulation of Natural Convection in Solar Cavity Receivers [Presentation]. https://doi.org/10.1115/ES2012-91064 Publication ID: 29185
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Ho, C., Ghanbari, C., Hartley, J., & Hartley, J. (2011). On-Sun Testing of a Heliostat Using Facets with Metallized Polymer Films (Powerpoint presentation) [Conference]. https://www.osti.gov/biblio/1141206 Publication ID: 24414
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Ho, C., Ghanbari, C., Hartley, J., & Hartley, J. (2011). On-Sun Testing of a Heliostat Using Facets with Metallized Polymer Films (Poster) [Presentation]. https://www.osti.gov/biblio/1688676 Publication ID: 24428
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Ho, C., Ghanbari, C., Hartley, J., & Hartley, J. (2011). On-Sun Testing of a Heliostat Using Facets with Metallized Polymer Films [Conference]. https://www.osti.gov/biblio/1140840 Publication ID: 23826
Showing 10 of 47 publications.