Mang to Receive ASCE’s Nathan M. Newmark Medal

BY 
April 7, 2014

Mang, HerbertHerbert A. Mang, Ph.D., F.ASCE, is the recipient of the Nathan M. Newmark Medal for his outstanding research contributions in the area of nonlinear continuum and computational mechanics that clarified the cause of collapse of important concrete structures and quantified the influence of bending on the initial postbuckling behavior of metallic structures. Professor of Strength of Materials at the Vienna University of Technology, Mang is a pioneer in computational mechanics of solids and structures. He was the first to show that wind-loaded hyperboloid cooling towers made of reinforced concrete fail by progressive damage and loss of material strength rather than by buckling, which previously was the school of thought among structural engineers. He developed innovative and fundamental computational solid mechanics technology for collapse analysis of reinforced and prestressed concrete structures with fracturing damage – a necessary prerequisite for the demonstration of that result. His analysis of the failures of these enormous structures has profoundly influenced subsequent designs. Additionally, Mang was the initiator of a groundbreaking new research direction in computational structural stability aimed at improving the postbuckling behavior of thin imperfection-sensitive elastic shells through small changes of the original design. Combining solid mechanics with spherical geometry, he pioneered the concept of a “buckling sphere,” permitting energy-based quantification of the nonlinear mechanical behavior of structures and classification of stability loss. In the frame of this ongoing research, Mang derived energy conditions for a maximum and a point of inflection of the determinant of the tangent stiffness matrix in the prebuckling region. Recently, Mang with his collaborators pursued a multiphysics and multiscale approach to develop a thermo-chemo-mechanical hybrid method, with experimental-numerical feedback during construction, for strength analysis of shotcrete shells required to stabilize tunnel excavations by the New Austrian Tunneling Method.

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