Zobrazeno 1 - 10
of 45
pro vyhledávání: '"J. Dewees"'
Publikováno v:
International Journal of Solids and Structures. 257:111935
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faa244c7bf1ad26e96aa6242300bc764
https://doi.org/10.1016/j.ijsolstr.2022.111935
https://doi.org/10.1016/j.ijsolstr.2022.111935
Publikováno v:
Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination.
An unusual finding of a through wall crack was discovered along the skirt to bottom head weldment. The crack extended nearly 360-degrees along the circumferential weld seam. This flaw resulted in the drum level dropping approximately 2.5 inches onto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04200c2a788ca8de016c2e2adcdb1a60
https://doi.org/10.1115/pvp2021-62435
https://doi.org/10.1115/pvp2021-62435
Publikováno v:
Volume 6B: Materials and Fabrication.
Creep is progressive deformation of material over an extended period when exposed to elevated temperature and stresses below the yield strength. Poor Creep ductility and cracking can be a problem above 900 °F (482°C) in the HAZ of low alloy (Cr-Mo)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6472eda86aced74eb552779584d80f24
https://doi.org/10.1115/pvp2019-93706
https://doi.org/10.1115/pvp2019-93706
Autor:
David J. Dewees, David I. Anderson
Publikováno v:
ASME 2018 Symposium on Elevated Temperature Application of Materials for Fossil, Nuclear, and Petrochemical Industries.
In general Section I of the ASME Boiler Code was originally developed for industrial boilers through to sub-critical boilers operating at relatively low temperatures and pressures under steady state conditions. Current and future boilers do and will
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26b18aa6b909a5c03c145ca07289a2a2
https://doi.org/10.1115/etam2018-6749
https://doi.org/10.1115/etam2018-6749
Publikováno v:
Volume 3B: Design and Analysis.
A case study for life prediction of Grade 91 heat recovery steam generator (HRSG) superheater outlet header of typical combined cycle power plants (CCPP) is presented in this paper. The effect of high cycling and fast startup along with elevated desi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd574d0373ec476e822ea21198b8e9b0
https://doi.org/10.1115/pvp2017-65851
https://doi.org/10.1115/pvp2017-65851
Publikováno v:
Volume 6A: Materials and Fabrication.
A continuum damage mechanics (CDM) coupled unified viscoplasticity model has been developed to predict the creep-fatigue life of modified Grade 91 steel. A tertiary creep model termed MPC-Omega codified in Part 10 of API (and also implemented in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc37571a0dfc9a214c0e2760c9a92d91
https://doi.org/10.1115/pvp2017-65849
https://doi.org/10.1115/pvp2017-65849
Autor:
Dana Moot, Ryan Cornell, David J. Dewees, Craig Jones, Megan Slater, Patricia Becker, Jim Tanzosh, Steve Scavuaao, Paul S. Weitzel
Publikováno v:
Mechanical Engineering. 136:32-35
This article discusses how ASME Boiler and Pressure Vessel Code (BPVC) has continued to evolve in the past 100 years to meet the needs of the engineers using the most advanced technology. The first edition of what has now become the ASME BPVC was pub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7afa7d7a46c1ba63a80923063a95ec2a
https://doi.org/10.1115/1.2014-nov-1
https://doi.org/10.1115/1.2014-nov-1
Autor:
David J. Dewees
Publikováno v:
Volume 6A: Materials and Fabrication.
The cost and complexity of design method validation at the component level makes actual and comprehensive benchmark cases challenging to obtain. This is especially true of elevated temperature design methods where component and material response is c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::234dcdbe73b382982fb4ef5b81b1763e
https://doi.org/10.1115/pvp2016-63696
https://doi.org/10.1115/pvp2016-63696
Publikováno v:
Volume 6A: Materials and Fabrication.
Chaboche unified viscoplasticity model and uncoupled plasticity and creep models (nonunified) are evaluated for their capability in simulating low-cycle fatigue, creep and creep-fatigue responses of Grade 91 steel. The primary objective of this study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cd678fb72ab1fbf9017bf7f00edfbe0
https://doi.org/10.1115/pvp2016-63578
https://doi.org/10.1115/pvp2016-63578
Publikováno v:
Volume 5: High-Pressure Technology; Rudy Scavuzzo Student Paper Symposium and 24th Annual Student Paper Competition; ASME Nondestructive Evaluation, Diagnosis and Prognosis Division (NDPD); Electric Power Research Institute (EPRI) Creep Fatigue Workshop.
Section I of the ASME Boiler and Pressure Vessel Code currently has a Code Case that provides rules for the construction of unstayed flat heads with integral flanges (butt welded hubs) from forged material. This Code Case is currently being considere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4c141127cc69d5b8688ab5eed17004d
https://doi.org/10.1115/pvp2016-63562
https://doi.org/10.1115/pvp2016-63562