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20 papers
Fracture Toughness of Crystalline Solids
J. S. Langer
This paper describes an attempt to construct a first-principles theory of the fracture toughness of crystalline solids. It is based on the thermodynamic dislocation theory (TDT), w…
Brittle-Ductile Transitions in a Metallic Glass
J. S. Langer
Recent computational and laboratory experiments have shown that the brittle-ductile transitions in metallic glasses such as Vitreloy1 are strongly sensitive to the initial effectiv…
Statistical Thermodynamics of Crystal Plasticity
J. S. Langer
This article is written in memory of Pierre Hohenberg with appreciation for his deep commitment to the basic principles of theoretical physics. I summarize recent developments in t…
Thermodynamic dislocation theory of adiabatic shear banding in steel
Khanh Chau Le, Tuan Minh Tran, James S. Langer
The statistical-thermodynamic dislocation theory developed in our earlier studies is used here in an analysis of the experimental observations of adiabatic shear banding in steel b…
Shear-Transformation-Zone Theory of Yielding in Athermal Amorphous Materials
J. S. Langer
Yielding transitions in athermal amorphous materials resemble critical phenomena. Historically, they have been described by the Herschel-Bulkley rheological formula, which implies…
Ising Model of the Glassy Correlation Length
J. S. Langer
Recent numerical simulations indicate that several different equilibrium glass transitions may be characterized by diverging correlation lengths, and that these divergences are des…