Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Louis J. Ghosn"'
Publikováno v:
International Journal of Fatigue. 150:106328
Machining parameters can influence fatigue life by altering residual stresses, cold work and surface roughness. A study was performed to examine the effect of various broaching machining parameters on high temperature fatigue lives of a nickel-based
Publikováno v:
International Journal of Fatigue. 87:311-325
A study was performed to determine and model the effect of high temperature dwells on notched low cycle fatigue (NLCF) and notch stress rupture behavior of a fine grain LSHR powder metallurgy (PM) nickel-based superalloy. It was shown that a 90 secon
Publikováno v:
International Journal of Fatigue. 133:105431
A novel, empirically-based damage tolerance life prediction methodology has been developed to model dwell fatigue crack growth (DFCG) behavior in Ni-based disk superalloys. The methodology is based on a new crack driving force parameter, termed Ksrf,
Publikováno v:
Journal of Sandwich Structures & Materials. 17:56-73
The pursuit for cheap, low-density and high-performance materials in the design of aircraft engine blades raises wide-ranging challenges to the materials and structural design engineers. Traditionally, these components have been fabricated using expe
Publikováno v:
Developments in Strategic Ceramic Materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::195db12ab3aae556ca29f730f1c398ac
https://doi.org/10.1002/9781119211747.ch18
https://doi.org/10.1002/9781119211747.ch18
Autor:
Jonathan A. Salem, Louis J. Ghosn
Publikováno v:
Journal of the American Ceramic Society. 93:2804-2813
Calibrations relating back-face strain to crack length in precracked flexure specimens were developed for different strain gage sizes. The functions were verified via experimental compliance measurements of notched and precracked ceramic beams. Good
Autor:
Jonathan A. Salem, Louis J. Ghosn
Publikováno v:
International Journal of Fracture. 164:319-323
Due to a coarse grain structure, crack lengths in precracked magnesium aluminate (MgAlO4) spinel specimens could not be measured optically, so the crack lengths and fracture toughness were estimated by strain gage measurements. An expression was deve
Autor:
Roy M. Sullivan, Louis J. Ghosn
Publikováno v:
International Journal of Engineering Science. 47:990-1001
Equations for calculating the shear modulus of non-isotropic, open cell foams in the plane perpendicular to the rise direction and in a plane parallel to the rise direction are derived using an elongated Kelvin foam model. This Kelvin foam model is m
Publikováno v:
Surface and Coatings Technology. :13-19
The development of advanced high performance constant-volume-combustion-cycle engines (CVCCE) requires robust design of the engine components that are capable of enduring harsh combustion environments under high frequency thermal and mechanical fatig
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 126:265-270
Reliable engine-weight estimation at the conceptual design stage is critical to the development of new aircraft engines. It helps to identify the best engine concept amongst several candidates. In this paper, the major enhancements to NASA’s engine