Bio
Professional Background
Dr. Arnold has been at the forefront of research and development of advanced high temperature material behavior modeling within the Materials and Structures Division at NASA Glenn Research Center, since January 1988. His appointments over the past two decades include:
M&S Discipline Lead: Transformative Tools & Technology (T3) project within ARMD
7/2017 – present
Technical Lead: Multiscale/Multiphysics Modeling, Structures and Materials Division
6/2014 – present
Chief Mechanics and Life Prediction Branch
1/2007 – 6/2014
Acting Branch Chief Mechanics and Life Prediction Branch
9/2005 – 5/2006
Co-founder and Chairman Material Data Management Consortium (MDMC)
5/2002 – present
Areas of Expertise
Dr. Arnold's work focuses on several critical areas:
Constitutive Modeling: Specializing in both deformation and damage, Dr. Arnold develops advanced models for high-temperature thermo-viscoelastoplastic deformation and damage constitutive models.
Multiscale Modeling: His expertise extends to the multiscale modeling of advanced composite materials and associated multiscale design and analysis computational tools required to make these models accessible to the engineering community.
Materials Information Management: Dr. Arnold is a pioneer in designing and implementing schemas for effective materials information management at multiple scales.
ICME (Integrated Computational Materials Engineering): He leads efforts in ICME, combining computational tools and digital twins/digital thread technologies to improve material design and application.
Significant Contributions
Throughout his career, Dr. Arnold has developed numerous computational tools that have significantly impacted the engineering community. Notable tools include the award-winning micromechanics analysis code MAC/GMC, the GVIPS unified viscoelastoplastic model, and the COMPARE constitutive material parameter estimation code. His research has also resulted in the development of the ADEAL continuum damage mechanics fatigue life model for unidirectional metal matrix composites.
Publications and Patents
Dr. Arnold has authored or co-authored over 525 technical publications, including 119 journal articles, 3 co-edited special issues on Functionally Graded Materials, 3 books, 4 book chapters, and 10 NASA Tech Briefs. His two seminal books on micromechanics of composites are:
Micromechanics of Composite Materials: A Generalized Multiscale Analysis Approach (2013)
Practical Micromechanics of Composite Materials (2021)
In addition to his publications, Dr. Arnold holds two U.S. patents and has submitted 19 NASA Invention Disclosures.
Google Scholar H-Index: 38
Awards and Honors
Dr. Arnold's contributions to engineering and materials science have been recognized with numerous awards, including:
2022 GITEC Emerging Technology Team Award: Advancing Artificial Intelligence and Data Analytics
2021 ASME/Boeing Structures and Materials Best Paper Award, AIAA 2021 SciTech Form
2019 NASA Exceptional Service Medal
2015 ASC/DEStech Award in Composites for 2015
2014 NASA Exceptional Technology Achievement Medal
2013 ASM Fellow Class of 2013
2011 Best Paper Award at the 35th ICACC - International Conference on Advanced Ceramics &
Composites - Daytona Beach, FL, January 23 – 28, 2011
2009 College of Engineering Distinguished Alumni Award, University of Akron
2004 NASA Glenn Abe Silverstein Award for Outstanding Research Contributions
And many other NASA group awards, Tech Brief, and Best paper awards
Dr. Arnold is actively involved in several professional organizations, holding leadership roles such as:
Chairman and Co-founder of the Material Data Management Consortium;
www.mdmc.net, 2002-present
NAFEMS Americas Steering Committee member: 2019-present
Member of AIAA Material Technical Committee: 2013-present:
1/21/21 - 5/30/24 Chair Materials Technical Committee, AIAA
1/2019 - 12/2020 Vice-Chair Materials Technical Committee, AIAA
1/2017 - 12/2019 Secretariat Materials Technical Committee, AIAA
AIAA ICME working group committee 2018-present;
Past chair 2021-2023
Member of AIAA Active Structures Technical Committee: 2007-2012
Member of ASM International Property/Database Committee: 2010-present
ASM International Property/Database Machine Learning subcommittee: 2018-present
Member of ASM International Strategic Web Committee: 2004-2010; Chairman 2006-2010
Mentorship and Education
Dr. Arnold is dedicated to mentoring the next generation of engineers and researchers. He has been a mentor to numerous NASA interns and served as National Research Council mentor since 1992.
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