Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Peter Dumstorff"'
Autor:
Ronald Mailach, Henning Almstedt, Lukas C. Schuchard, Matthias Voigt, Armin de Lazzer, Peter Dumstorff
Publikováno v:
Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration.
Availability and flexibility, largely in terms of start-up times, are becoming paramount for today’s steam turbine operation. Thus, precise knowledge of the stresses components experience and their lifetime consumption in transient regimes is vital
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b60a4f96a9c23e5fe262bea54416b65
https://doi.org/10.1115/gt2021-58620
https://doi.org/10.1115/gt2021-58620
Publikováno v:
Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine.
The continued expansion of fluctuating energy sources such as wind turbines and solar systems will increase the demand for more flexible operation modes of power plants. Especially steam turbines with all their components will have to sustain a highe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2fea7af1c08b3a64b6dc58e483dd9fa
https://doi.org/10.1115/gt2020-14556
https://doi.org/10.1115/gt2020-14556
Publikováno v:
Volume 10B: Structures and Dynamics.
This paper focuses on the inverse finite element analysis (FEA) to calculate the small punch technique (SPT) tests and the prediction of the tensile and fracture toughness behavior. For the description of the SPT tests via FEA, the hardening rule of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::187aa9c8620bfc0234fb1a6ede86ec02
https://doi.org/10.1115/gt2020-16054
https://doi.org/10.1115/gt2020-16054
Publikováno v:
Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines.
Flexibility and availability together with fast startup times become more and more important for steam turbine operation. Exact knowledge about the turbine components stresses and lifetime consumption during transient operation is a prerequisite in o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::592cbdc8c83315d8919870f87146c2bb
https://doi.org/10.1115/gt2016-57321
https://doi.org/10.1115/gt2016-57321
Publikováno v:
Volume 2C: Turbomachinery.
The demand for energy is increasingly covered through renewable energy sources. As a consequence, conventional power plants need to respond to power fluctuations in the grid much more frequently than in the past. Additionally, steam turbine component
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c5276fa9b9f0ceabd1ee34462f5848c
https://doi.org/10.1115/gt2016-57457
https://doi.org/10.1115/gt2016-57457
Autor:
Günther Meschke, Peter Dumstorff
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 196:2338-2357
Numerical analyses of structures made of brittle materials such as glass or quasi-brittle materials such as concrete or ceramics require robust models for the opening and propagation of cracks which adequately represent the discontinuous character of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6ecc53dd8c01a640c4ce440978189e3
https://doi.org/10.1016/j.cma.2006.11.016
https://doi.org/10.1016/j.cma.2006.11.016
Autor:
Peter Dumstorff, Günther Meschke
Publikováno v:
International Journal for Numerical and Analytical Methods in Geomechanics. 31:239-259
The extended finite element method (X-FEM) has proven to be capable of simulating cracking and crack propagation in quasi-brittle materials, such as cement paste or concrete, without the need for re-meshing. In the framework of the X-FEM cracks are r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cc8a2c06ff26c01ca061fd9ba6f74fa
https://doi.org/10.1002/nag.560
https://doi.org/10.1002/nag.560
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 138
The today’s energy market requires highly efficient power plants under flexible operating conditions. Especially, the fluctuating availability of renewables demands higher cycling of fossil fired power plants. The need for highly efficient steam tu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55b77d3a208343966b0ea799f4ea2031
https://doi.org/10.1115/1.4031441
https://doi.org/10.1115/1.4031441
Publikováno v:
III European Conference on Computational Mechanics ISBN: 9781402049941
Numerical prognoses of durability of structures made of cementitious materials such as concrete requires the consideration of environmental loads in addition to external loading [1]. For problems such as cracking of concrete structures, joints in roc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2856a6918f4c77ef41f773957fa04f2
https://doi.org/10.1007/1-4020-5370-3_254
https://doi.org/10.1007/1-4020-5370-3_254
Autor:
Peter Dumstorff, Günther Meschke
Publikováno v:
Computer Methods in Applied Mechanics and Engineering.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c556260be355eb9bda31e81c8de40fb
https://doi.org/10.1016/j.cma.2006.11.017
https://doi.org/10.1016/j.cma.2006.11.017