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Memorial Tributes: Volume 22 (2019)

Chapter: MICHAEL M. CARROLL

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Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
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published more than 260 papers and was a visiting professor at universities in Israel, China, Taiwan, Iran, and Sweden.

John had a brilliant mind and a warm heart. In addition to his own research, he stimulated, motivated, and mentored scientific colleagues at NIST and all over the world. Wherever he worked he created an atmosphere of excellence that raised the standards of the research of everyone around him and led to new science and its application. His personal warmth was evident in his day-to-day interactions with colleagues at work, his genuine interest in the lives of his colleagues and their families, and the dinners and parties he hosted with Anne at their home. His spirit remains alive in his friends, students, and colleagues.

John is survived by Anne; their children Martin, Andrew, and Lorie; and six grandsons.

Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
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Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
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MICHAEL M. CARROLL

1936–2016

Elected in 1987

“For unique contributions in the development of physically based models for geological materials and in related applications to the mechanics of porous materials.”

BY RONALD P. NORDGREN

MICHAEL MARY CARROLL, the Burton J. and Ann M. McMurtry Professor in Mechanical Engineering and Computational and Applied Mathematics at Rice University and former dean of its George R. Brown School of Engineering, died January 17, 2016, at the age of 79.

A charming, witty native of Ireland, Michael is remembered as much for his kindness as for his research accomplishments and administrative flair. Of particular significance is his research on finite elasticity and on the behavior of porous media with pore collapse. He was also an award-winning playwright, songwriter, and creator of cryptic crossword puzzles.

Michael was born December 8, 1936, in rural County Tipperary to Tim Carroll and Kit Gleeson. He showed an early interest in solving puzzles and mathematical problems. After beginning his education at his father’s school and attending an Irish-speaking school, he earned a scholarship to University College, Galway (UCG), where he majored in mathematical science and received his BA degree in 1958 and MA in 1959. He was then appointed an assistant lecturer at UCG. He also learned to play golf, a lifelong passion, at Galway.

He continued his graduate studies at Brown University under Ronald Rivlin, a preeminent researcher in the fields of nonlinear elasticity and non-Newtonian fluids. Michael’s

Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
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doctoral research led to his dissertation, “Electro-Magneto-Optical Effects.” His degree was awarded in 1965 and he continued at Brown University as a research associate.

In the fall of 1965 he joined the Department of Mechanical Engineering at the University of California, Berkeley as an assistant professor. He achieved tenure in 1969, became a full professor in 1975, held the Shell Distinguished Chair (a five-year appointment) from 1983 to 1988, and in 1986–88 was also associate dean for interdisciplinary studies in the College of Engineering. In addition, he served as ombudsman on the Berkeley campus (1969–71), a position in which he advocated on behalf of students to resolve grievances. He became a US citizen in 1970.

Michael’s research ranged from electromagnetism to nonlinear elasticity, porous media, and acoustics. He taught courses in statics, dynamics, vibrations, acoustics, noise control, mathematical methods, continuum mechanics, linear and nonlinear elasticity, and plasticity. He was a gifted teacher, with the ability to make difficult material understandable and bring out the physics behind the equations.

He left UC Berkeley in 1988 to become dean of the George R. Brown School of Engineering at Rice University, with faculty appointments in the Departments of Mechanical Engineering & Materials Science and Computational & Applied Mathematics, and with an endowed professorship. As dean he recruited excellent faculty, built strong outside support for the school, brought recognition to his faculty—including elections to the National Academy of Engineering—and in many other ways promoted and strengthened engineering at Rice. He also spearheaded the establishment of a new department in the engineering school, bioengineering, in 1997.

During his 10 years as dean, Rice’s engineering faculty grew from 74 to 92, and the proportion of female engineering undergraduates rose from 17 percent to 30 percent. His leadership style was to enable his faculty’s visions rather than imposing his visions on them. That style served him and Rice very well.

Michael’s recurring course offering at Rice, “Good Vibrations,” on sound, acoustics, and music, which he cotaught

Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
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with Art Gottschalk, chair of Composition and Theory at Rice’s Shepherd School of Music, was a popular interdisciplinary elective among students.

During the 1980s he served on the American Society of Mechanical Engineers (ASME) Applied Mechanics Division Executive Committee, rotating into the chair’s position in 1986. He was a member at large of the US National Committee on Theoretical and Applied Mechanics in 1980–84, and president of the Society of Engineering Science in 1986–87.

He authored over 100 papers, mainly on finite elasticity and on porous media. He also contributed to nonlinear optics, electromagnetism, nonlinear wave propagation, acoustics, viscoelasticity, plasticity, and the mechanics of sports. According to James Casey, a colleague at Berkeley:

His work is characterized by strong physical insight, mathematical rigor, clarity, elegance, and an extraordinary ability to find the hidden clue that cracks open a difficult problem. His predominant strengths are (1) his talent for discovering exact solutions to the complicated equations of the nonlinear field theories; and (2) his ability to model complex physical situations by mathematical theories involving only a few unknown parameters. His exact solutions, even when simple in form, provide insight into the behavior of nonlinear materials and are also of use in guiding experiments and in providing benchmark checks for computational schemes. His mathematical models are constructed with experiments close at hand, and have produced excellent agreement with measured data.

Michael’s research on porous media led to significant improvements in the theory of their behavior. His work, with collaborators from Lawrence Livermore Laboratory and his students at Berkeley, advanced the field of porous media by establishing a rational approach to the formulation of constitutive equations. A variety of effects were treated, including pressure maxima, rate effects, and shear-stress enhancement of void compaction. Use of simple yet powerful mathematical models yielded excellent agreement with experimental data for porous metals and rocks.

Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
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In addition, his research led to the improvement of golf clubs and aluminum baseball bats, and fairer oval running tracks. A detailed discussion of his research accomplishments and a list of his publications is given by Casey in the preface to a collection of papers1 dedicated to Michael in celebration of his 75th birthday.

In recognition of his distinguished career, Michael Carroll received many honors. He became an ASME fellow in 1984 and was elected to the NAE in 1987. He was also a fellow of the American Academy of Mechanics (1990) and American Academy of Arts and Sciences (1995), and was named an ASME honorary member in 1999. In 1979 he received a DSc and in 1992 an honorary doctor of laws (LLD), both from the National University of Ireland.

In addition to his theoretical work, Michael wrote two plays, one of which, I Hear the Rolling Thunder, about President Lyndon Johnson, opened the Allied Theatre Stage West’s 2000 season in Fort Worth. He also composed a number of cryptic crossword puzzles that appeared in the New York Times and elsewhere. And he wrote a love song that was arranged and played by musicians at the Shepherd School of Music as well as the Irish group the Chieftains. In 2004–05 he was president of the Houston Philosophical Society.

Michael’s spirit is illuminated by this quotation from his family’s memorial page:

Michael recognized the rhythm and beauty in everything—an equation of a sound wave, the drone from a Gaelic piper’s lament, a rousing stanza from a Yeats poem, the just right chip shot to the green, and—perhaps most of all—the calm yet majestic pull of a wave coming into the beach at sunset.

He is survived by his wife, the former Carolyn Gahagan, whom he married in 1964; their children Patricia and Timothy; three grandchildren; and five younger sisters.

Michael Carroll will be remembered fondly by all who knew him.

___________________

1Mathematics and Mechanics of Solids 16(5):453–466 (2011).

Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
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Page 45
Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
×
Page 46
Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
×
Page 47
Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
×
Page 48
Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
×
Page 49
Suggested Citation:"MICHAEL M. CARROLL." National Academy of Engineering. 2019. Memorial Tributes: Volume 22. Washington, DC: The National Academies Press. doi: 10.17226/25543.
×
Page 50
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This is the 22nd Volume in the series Memorial Tributes compiled by the National Academy of Engineering as a personal remembrance of the lives and outstanding achievements of its members and foreign associates. These volumes are intended to stand as an enduring record of the many contributions of engineers and engineering to the benefit of humankind. In most cases, the authors of the tributes are contemporaries or colleagues who had personal knowledge of the interests and the engineering accomplishments of the deceased. Through its members and foreign associates, the Academy carries out the responsibilities for which it was established in 1964.

Under the charter of the National Academy of Sciences, the National Academy of Engineering was formed as a parallel organization of outstanding engineers. Members are elected on the basis of significant contributions to engineering theory and practice and to the literature of engineering or on the basis of demonstrated unusual accomplishments in the pioneering of new and developing fields of technology. The National Academies share a responsibility to advise the federal government on matters of science and technology. The expertise and credibility that the National Academy of Engineering brings to that task stem directly from the abilities, interests, and achievements of our members and foreign associates, our colleagues and friends, whose special gifts we remember in this book.

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