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Ferdinand Pierre Beer (August 8, 1915 – April 30, 2003) was a French mechanical engineer and university professor. He spent most of his career as a member of the faculty at Lehigh University , where he served as the chairman of the mechanics and mechanical engineering departments.
From the founding of the University Library into the twentieth century, rare materials were housed within the main stacks. [5] Significant early acquisitions, now housed in the Rare Book & Manuscript Library, include the Richard Aron collection on German pedagogy (20,000 items), [6] acquired in 1913; the H. A. Rattermann collection of German-American literature (7,000 items), [7] acquired in ...
Strengthening mechanisms that alter the strength of a material include work hardening, solid solution strengthening, precipitation hardening, and grain boundary strengthening. Strengthening mechanisms are accompanied by the caveat that some other mechanical properties of the material may degenerate in an attempt to make a material stronger.
The University of Illinois Urbana-Champaign Library is one of the largest public academic libraries in the United States, "more than thirteen million volumes and 24 million items and materials in all formats, languages, and subjects, including 9 million microforms, 120,000 serials, 148,000 audio-recordings, over 930,000 audiovisual materials ...
Material failure theory is an interdisciplinary field of materials science and solid mechanics which attempts to predict the conditions under which solid materials fail under the action of external loads. The failure of a material is usually classified into brittle failure or ductile failure .
The Illinois Materials Research Laboratory (MRL) is home to several large-scale research programs, including a NSF-funded Materials Research Science and Engineering Center, the Illinois Quantum Information Science and Technology center, the BP-supported International Centre for Advanced Materials, several large DOE-funded efforts, as well as a ...
A solid is a material that can support a substantial amount of shearing force over a given time scale during a natural or industrial process or action. This is what distinguishes solids from fluids, because fluids also support normal forces which are those forces that are directed perpendicular to the material plane across from which they act and normal stress is the normal force per unit area ...
L. M. Kachanov [5] and Y. N. Rabotnov [6] suggested the following evolution equations for the creep strain ε and a lumped damage state variable ω: ˙ = ˙ ˙ = ˙ where ˙ is the creep strain rate, ˙ is the creep-rate multiplier, is the applied stress, is the creep stress exponent of the material of interest, ˙ is the rate of damage accumulation, ˙ is the damage-rate multiplier, and is ...