Results 291 to 300 of about 505,223 (350)
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Journal of Aerospace Sciences and Technologies, 2023
Box beams bend essentially with top and bottom skins providing bending rigidity and shear webs giving shear flexibility. When the width of the beam is comparable to the length of the beam and considerably larger than the depth ofthe shearwebs, there is an added complication called the shear lag effect.
Lalitha Chattopadhyay, G. Prathap
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Box beams bend essentially with top and bottom skins providing bending rigidity and shear webs giving shear flexibility. When the width of the beam is comparable to the length of the beam and considerably larger than the depth ofthe shearwebs, there is an added complication called the shear lag effect.
Lalitha Chattopadhyay, G. Prathap
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Curved box beam bridge analysis
Computers & Structures, 1976Abstract A finite difference procedure is used to determine the response of a single and multi span curved single box beam bridge with any number of interior diaphragms. The bending and torsional distortions as well as cross-sectional distortions are determined throughout the box girder. The forces that are determined include bending moment and shear,
Conrad P. Heins, James C. Oleinik
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Aircraft Engineering and Aerospace Technology, 1942
To the Editor SIR, In the January issue of AIRCRAFT ENGINEERING (Vol. XIV, No. 158) there is an extremely interesting article by Payne on “Torsion in Box Beams”. Unfortunately, as with most rigid analyses, a considerable amount of work is necessary before arriving at the final distribution of the applied torque. The scope is also extremely limited.
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To the Editor SIR, In the January issue of AIRCRAFT ENGINEERING (Vol. XIV, No. 158) there is an extremely interesting article by Payne on “Torsion in Box Beams”. Unfortunately, as with most rigid analyses, a considerable amount of work is necessary before arriving at the final distribution of the applied torque. The scope is also extremely limited.
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Shear deformable finite beam elements for composite box beams
Acta Mechanica Sinica, 2014zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kim, Nam-Il, Choi, Dong-Ho
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Shear behavior of ferrocement box beams
Cement and Concrete Composites, 1991Abstract The shear behavior of ferrocement box beams has been studied by conducting flexural tests on 15 beam specimens. The major parameters used were amounts of wire mesh reinforcement in webs and in flanges of the beam and shear span to depth ratio, a/h. Test results indicate that cracking and ultimate shear forces increase as wire mesh in webs is
G.J. Al-Sulaimani +2 more
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Box-Beam Bursting Energy Absorbing Terminal
Journal of Transportation Engineering, 2002A new box-beam guardrail end terminal, known as the box-beam bursting energy absorbing terminal (BEAT), was designed and shown to meet current United States impact safety standards according to guidelines provided by the National Cooperative Highway Research Program (NCHRP). The BEAT is placed on the end of a box-beam guardrail system. When impacted by
John D. Reid +2 more
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International Journal of Mechanical Sciences, 1978
Stress analysis is carried out for the case where a cantilever box beam is subjected to distributed torque and concentrated torque at the tip. Direct stress σx acting in a cover plate is assumed to be in the form of ∑n σn(x)yn where n is an odd integer and the fundamental equation governing a box beam is introduced, using variational method.
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Stress analysis is carried out for the case where a cantilever box beam is subjected to distributed torque and concentrated torque at the tip. Direct stress σx acting in a cover plate is assumed to be in the form of ∑n σn(x)yn where n is an odd integer and the fundamental equation governing a box beam is introduced, using variational method.
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LONGITUDINAL CRACK IN PRESTRESSED BOX BEAM
PCI Journal, 1969A WIDE AND DEEP LONGITUDINAL CRACK DEVELOPED IN THE BOTTOM OF A BRIDGE BOX BEAM AND EXTENDED FROM ONE SUPPORT ALMOST TO MID-SPAN. A DETERMINATION OF THE MOST PROBABLE CAUSE OF THE CRACK AND AN EVALUATION OF THE ULTIMATE AND RESERVE STRENGTH OF THE BEAM BY LOAD TESTING TO FAILURE WERE MADE.
Edward G. Nawy, Herbert Goodkind
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2015
The previous chapter clearly showed that shear-based piezoceramic actuation using \(d_{15}\) is feasible for obtaining active twist. The current chapter dwells more on the development and validation of the concept of induced-shear-based piezoceramic actuation in helicopter rotor blades considering a simple two-cell box cross section.
Ranjan Ganguli +2 more
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The previous chapter clearly showed that shear-based piezoceramic actuation using \(d_{15}\) is feasible for obtaining active twist. The current chapter dwells more on the development and validation of the concept of induced-shear-based piezoceramic actuation in helicopter rotor blades considering a simple two-cell box cross section.
Ranjan Ganguli +2 more
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Prestressed Box Beams under Combined Loading
Journal of the Structural Division, 1975Prestressed concrete box beams are studied under combined loadings of torsion, bending, and shear. Thirty-seven eccentrically prestressed beams were tested—three under pure torsion, 10 under varying ratios of torsion and bending, and 24 under varying ratios of torsion, bending and shear. All beams had a 12-in.
David W. Johnston, Paul Zia
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