Results 121 to 130 of about 179,438 (314)

Evaluation of Bridge Replacement Alternatives for the County Bridge System, HR-365 August 1994 [PDF]

, 1994
Recent reports have indicated that 23.5 percent of the nation's highway bridges are structurally deficient and 17.7 percent are functionally obsolete. A significant number of these bridges are on the Iowa county road system.

core  

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Integral abutment bridge behavior: Parametric analysis of a Massachusetts bridge

, 2007
Integral abutment bridges are often a preferred bridge type for moderate spans throughout the United States. However, design methods and construction details vary from state to state.
Bonczar, C, Crovo, D, Civjan, SA, Brena, SF, DeJong, J   +4 more
core   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

Detection of Bridge Dynamic Parameters Using an Instrumented Vehicle

, 2012
5th World Conference on Structural Control and Monitoring, 12th-14th July, Tokyo, JapanHighway structures such as bridges are subject to continuous degradation primarily due to ageing and environmental factors.
McGetrick, P., O'Brien, Eugene J., González, Arturo   +2 more
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Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Report on proposed Mackinac Straits bridge /

, 1951
At head of title: State of Michigan, Mackinac Bridge Authority.Pier foundations for a proposed bridge across the Straits of Mackinac : an engineering geologic report / Charles P.
Berkey, Charles Peter, b. 1867. Pier foundations for a proposed bridge across the Straits of Mackinac., Mackinac Bridge Authority (Mich.). Board of Engineers.   +1 more
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Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Joint approximate diagonalization technique for modal identification of the Donghai Bridge

Advances in Bridge Engineering
The second-order blind identification (SOBI) and its variants have been extensively explored for output-only modal identification of civil structures under varied excitations.
Ben Li, Lin Chen, Satish Nagarajaiah, Limin Sun   +3 more
doaj   +1 more source

The influence of pre-existing vibrations on the dynamic response of medium span bridges

, 2009
Critical static bridge loading scenarios are often expressed in terms of the number of vehicles that are present on the bridge at the time of occurrence of maximum lifetime load effect.
O'Brien, Eugene J., Rattigan, Paraic, González, Arturo   +2 more
core   +1 more source