Isaac Daniel, Greek-born Northwestern prof considered ‘father of composite materials,’ dies at 92, tell me about this news in (https://www.chicagotribune.com/2026/09/25/isaac-daniel-obituary/)
25-09-2026
Isaac M. Daniel, a world-renowned engineer and professor emeritus at Northwestern University often celebrated as a foundational figure in composite materials, passed away at the age of 92.
Key highlights of his life and legacy include:
Background and Survival: Born in 1933 in Thessaloniki, Greece, into a Sephardic Jewish family, Daniel survived the Holocaust during the Axis occupation of Greece. His family endured persecution, narrow escapes, and hiding, an experience he later chronicled in his memoir, Seven Miracles: Surviving the Holocaust in Greece.
Academic Career: He immigrated to the United States and completed his undergraduate and doctoral studies at the Illinois Institute of Technology (IIT). After an extensive research career at IIT and the IIT Research Institute, he joined Northwestern University’s McCormick School of Engineering in 1986. At Northwestern, he served as the Walter P. Murphy Professor of Civil, Environmental, and Mechanical Engineering and directed the Center for Intelligent Processing of Composites until his retirement in 2019.
Scientific Impact: Widely regarded as the “father of composite materials,” his pioneering research focused on experimental mechanics, nondestructive evaluation, and the behavior of advanced composite materials under extreme conditions. He authored or co-authored hundreds of scholarly papers and the widely used standard textbook Engineering Mechanics of Composite Materials. He is especially recognized for the Daniel Failure Criterion (also associated with the Northwestern Failure Theory), which helped revolutionize how aerospace, automotive, and marine engineers predict failure in carbon fiber and layered structural materials.
Honors: Daniel was elected a member of the National Academy of Engineering and held fellowships across several prestigious societies, including the Society for Experimental Mechanics (SEM), the American Society of Mechanical Engineers (ASME), and the American Academy of Mechanics, earning top international medals and lifetime achievement honors in experimental stress analysis and materials science.