Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Roland deWit"'
Publikováno v:
2008 Annual Conference & Exposition Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a74a3bf2e04366ff5540650296b70637
https://doi.org/10.18260/1-2--4409
https://doi.org/10.18260/1-2--4409
Autor:
Roland deWit
Publikováno v:
Journal of research of the National Bureau of Standards. Section A, Physics and chemistry. (3)
A general theory of stationary disclinations is developed for a linearly elastic, infinitely extended, homogeneous, isotropic body. It is shown to be a special case of the anisotropic theory. Integral expressions are derived for the total displacemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffd7860b88689b42333a5610f7e9e8f9
https://pubmed.ncbi.nlm.nih.gov/32189746
https://pubmed.ncbi.nlm.nih.gov/32189746
Autor:
Roland deWit
Publikováno v:
Journal of Mechanics of Materials and Structures. 3:195-212
This paper gives expressions for the overall average elastic constants and thermal expansion coefficients of a polycrystal in terms of its single crystal components. The polycrystal is assumed to be statistically homogeneous, isotropic, and perfectly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a44e2cbfe9108db660aee9d91413275c
https://doi.org/10.2140/jomms.2008.3.195
https://doi.org/10.2140/jomms.2008.3.195
Autor:
James J. Filliben, Pedro V. Marcal, Roland deWit, Richard J. Fields, Barry Bernstein, Jeffrey T. Fong
Publikováno v:
Journal of Pressure Vessel Technology. 128:140-147
In this paper, we first review the impact of the powerful finite element method (FEM) in structural engineering, and then address the shortcomings of FEM as a tool for riskbased decision making and incomplete-data-based failure analysis. To illustrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6af2d18286a7d66776944496e5701c28
https://doi.org/10.1115/1.2150843
https://doi.org/10.1115/1.2150843
Publikováno v:
Journal of Pressure Vessel Technology. 115:398-405
A new method of fracture analysis is described. Strains recorded by gages in the immediate vicinity of a propagating crack are analyzed. From the analysis, crack tip position, propagation toughness, and crack velocity are determined. The analysis pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a42c3db0cb66ad680b5617637ea773f1
https://doi.org/10.1115/1.2929547
https://doi.org/10.1115/1.2929547
Wide-plate crack-arrest tests utilizing prototypical and degraded (simulated) pressure vessel steels
Publikováno v:
Nuclear Engineering and Design. 135:197-205
Sixteen wide-plate crack-arrest tests have been completed, ten utilizing specimens fabricated from A533B class 1 material and six fabricated from a low-upper-shelf base material. Each test utilized a single-edge notched specimen that was subjected to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d7c81fb5bea791603512eb9148d48a7
https://doi.org/10.1016/0029-5493(92)90222-h
https://doi.org/10.1016/0029-5493(92)90222-h
A series of fracture tests on large-scale, precracked, aluminum alloy panels were carried out to examine and characterize the process by which cracks propagate and link up in this material. Extended grips and test fixtures were specially designed to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6380f2fe8089253c991f41f7288ae34b
https://doi.org/10.1520/stp16248s
https://doi.org/10.1520/stp16248s
Between September 1984 and December 1985, five wide-plate crack-arrest tests on A533B quenched and tempered steel were carried out on the 26-MN tensile capacity universal testing machine at the National Bureau of Standards. Each test was different wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4c627030b5ae5c0be1fa751f5eb29a9
https://doi.org/10.1520/stp33101s
https://doi.org/10.1520/stp33101s
Autor:
N. Alan Heckert, Jeffrey T. Fong, Roland deWit, James J. Filliben, Stephen R. Gosselin, Pedro V. Marcal
Publikováno v:
Volume 6: Materials and Fabrication, Parts A and B.
In a 2007 paper entitled “Application of Failure Event Data to Benchmark Probabilistic Fracture Mechanics (PFM) Computer Codes” (Simonen, F. A., Gosselin, S. R., Lydell, B. O. Y., Rudland, D. L., & Wikowski, G. M. Proc. ASME PVP Conf., San Antoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd2a4c3b124f545ea8960bf4a27ac421
https://doi.org/10.1115/pvp2009-77974
https://doi.org/10.1115/pvp2009-77974
Publikováno v:
Volume 6: Materials and Fabrication, Parts A and B.
To advance the state of the art of engineering design, we introduce a new concept on the “robustness” of a structure by measuring its ability to sustain a sudden loss of a part without causing an immediate collapse. The concept is based on the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df01b1bbec075546cf7333e4f26f53ac
https://doi.org/10.1115/pvp2008-61602
https://doi.org/10.1115/pvp2008-61602