Results 71 to 80 of about 3,298,913 (200)

Corrosion fatigue of high strength fastener materials in seawater [PDF]

open access: yes
Environmental effects which significantly reduce the fatigue life of metals are discussed. Corrosion fatigue is a major concern in the engineering application of high strength fasteners in marine environments.
Tipton, D. G.
core   +1 more source

Slow deformation fronts: model and features of distribution

open access: yesГеодинамика и тектонофизика, 2018
Our study aimed at investigating the origin and development of ‘slow’ movements in a solid body/medium under loading and studying the role of such movements in the occurrence of critical states, i.e.
P. V. Makarov   +2 more
doaj   +1 more source

Affects of student attendance on performance in undergraduate materials and manufacturing modules [PDF]

open access: yes, 2008
This paper investigates the class attendance of second year, third year and fourth year students and their overall performance at the school of Mechanical and Manufacturing Engineering in Dublin City University (DCU).
Brabazon, Dermot   +2 more
core  

On the Superplastic Deformation in Vanadium-Alloyed High-Nitrogen Steel

open access: yesMetals, 2019
The experimental evidence for the realization of a superplastic behavior with 900% elongation in V-alloyed high-nitrogen austenitic Fe-19Cr-22Mn-1.5V-0.3C-0.6N steel was proposed. Using thermomechanical processing, a misoriented grain/subgrain austenitic
Elena Astafurova   +7 more
doaj   +1 more source

Structural application of high strength, high temperature ceramics [PDF]

open access: yes, 1982
The operation of rocket engine turbine pumps is limited by the temperature restrictions of metallic components used in the systems. Mechanical strength and stability of these metallic components decrease drastically at elevated temperatures.
Hall, W. B.
core   +1 more source

Seismographic recording of large rocket engine operation [PDF]

open access: yes, 1969
Recording equipment for rocket engine vibration is adaptable to determining the structural strength of building materials. This seismographic system is portable and is capable of measuring displacements in the direction of three mutually perpendicular ...
Dalins, I., Mc Carty, V.
core   +1 more source

Computational simulation of probabilistic lifetime strength for aerospace materials subjected to high temperature, mechanical fatigue, creep and thermal fatigue [PDF]

open access: yes
This report presents the results of a fourth year effort of a research program, conducted for NASA-LeRC by the University of Texas at San Antonio (UTSA).
Bast, Callie C.   +2 more
core   +1 more source

Optical Conductivity of Manganites: Crossover from Jahn-Teller Small Polaron to Coherent Transport in the Ferromagnetic State

open access: yes, 1998
We report on the optical properties of the hole-doped manganites Nd_{0.7}Sr _{0.3}MnO_{3}, La_{0.7}Ca_{0.3}MnO_{3}, and La_{0.7}Sr_{0.3}MnO_{3}. The low-energy optical conductivity in the paramagnetic-insulating state of these materials is characterized ...
A. Asamitsu   +48 more
core   +1 more source

Fiber glass reinforced structural materials for aerospace application [PDF]

open access: yes, 1968
Evaluation of fiber glass reinforced plastic materials concludes that fiber glass construction is lighter than aluminum alloy construction.
Bartlett, D. H.
core   +1 more source

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