Results 201 to 210 of about 148,804 (260)

A Hybrid ISSA-XGBoost Model for Predicting Wellbore Leakage. [PDF]

open access: yesSensors (Basel)
Bai K   +5 more
europepmc   +1 more source
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Nanoscale Fracture Mechanics

Annual Review of Physical Chemistry, 2007
Theoretical calculations on undefected nanoscale materials predict impressive mechanical properties. In this review we summarize the status of experimental efforts to directly measure the fracture strengths of inorganic and carbon nanotubes and discuss possible explanations for the deviations between the predicted and observed values.
Steven L, Mielke   +2 more
openaire   +2 more sources

Fracture Mechanics

In this second edition, which is the result of numerous revisions, updates and additions, the authors cover the basic concepts of fracture mechanics for both the linear elastic and elastic-plastic regimes. The fracture mechanics parameters K, G, J and CTOD are treated in a basic manner along with the test methods to determine critical values.
Janssen, M. (author)   +2 more
  +7 more sources

The Mechanism of Skull Fracture

Radiology, 1950
Deformation patterns of the skull due to blows of low velocity, as well as the mechanism of production of linear skull fracture, have been previously described (1–5). When the dry skull is coated inside and out with “stresscoat” brittle lacquer, and then subjected to a blow, the lacquer cracks in the areas of greatest tensile deformation.
E S, GURDJIAN   +2 more
openaire   +3 more sources

Fracture Mechanics of Fracture Mirrors

Journal of the American Ceramic Society, 1979
Stress‐intensity‐factor calculations were used to account for variations in the shapes of fracture mirrors caused by surfaces and by nonuniform stress fields (flexure). The validity of the stress‐intensity criterion for crack branching was confirmed. The stress‐intensity factor at crack branching, K B
HENRY P. KIRCHNER, JAMES W. KIRCHNER
openaire   +1 more source

Mechanisms of Fracture Healing

Hospital Practice, 1991
Bone is remarkable in that...it regenerates itself. In fact, it is the only tissue...except the liver with that regenerative capacity....The stages of healing in fracture callus recapitulate the spatial zones seen in the growth plate of a child.
openaire   +2 more sources

Fracture mechanisms and fracture mechanics at ultrasonic frequencies

Fatigue & Fracture of Engineering Materials & Structures, 1999
Performing fatigue tests at ultrasonic frequencies, e.g. 20 000 Hz, allows one to perform experiments beyond 109and 1010cycles within half a day or a week, respectively. The testing technique has led to the construction of fatigue machines of high technical standard.
openaire   +1 more source

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