Results 211 to 220 of about 118,873 (266)
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Ultimate-Strength Germanium Nanowires
Nano Letters, 2006Semiconducting nanowires (NWs) are important "building blocks" for potential electrical and electromechanical devices. Here, we report on the mechanical properties of supercritical fluid-grown Ge NWs with radii between 20 and 80 nm. An analysis of the bending and tensile stresses during deformation and failure reveals that while the NWs have a Young's ...
Lien T, Ngo +7 more
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Seismic Proving Test of Ultimate Piping Strength: Ultimate Strength Test
Seismic Engineering, Volume 2, 2004The proving test of a large-scale piping system with a piping bore of 200A (8B) and made from carbon steel material was conducted to assure the safety margin of the current and new design codes for piping. Two test models were used, one for the design method confirmation test and one for the ultimate strength test.
Kenichi Suzuki, H. Abe, Kohei Suzuki
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The Ultimate Strength of Glass Silica Nanowires
Nano Letters, 2009In the past decade nanowires have attracted an increase interest because of their extraordinary mechanical strength. In fact, material properties in the nanoregime are extremely different from those found in macroscopic samples: few crystalline materials have shown a tensile strength in excess of 10 GPa in the form of nanowires.
Brambilla, Gilberto, Payne, David N.
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Ultimate tensile strength of tooth structures
Dental Materials, 2004This study determined the ultimate tensile strength (UTS) of enamel (E), dentin (D) and dentin-enamel junction (DEJ) using the microtensile technique. It was hypothesized that the UTS of dental structures varies according to location and nature.Intact occlusal enamel surfaces from extracted human third molars were etched with 37% phosphoric acid and ...
Marcelo, Giannini +2 more
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ACI Journal Proceedings, 1965
THE BEHAVIOR OF CONCRETE SECTIONS AT FAILURE IS CONSIDERED AND THE VALIDITY OF ULTIMATE STRENGTH DESIGN METHODS DEMONSTRATED. THE DIFFICULTIES EXPERIENCED BY DESIGN ENGINEERS IN APPLYING EXISTING CODE FORMULAS ARE SUMMARIZED. AN UNDERSTANDING OF THE BASIC PRINCIPLES OF ULTIMATE STRENGTH METHODS LEADS TO RAPID AND DIRECT DESIGN.
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THE BEHAVIOR OF CONCRETE SECTIONS AT FAILURE IS CONSIDERED AND THE VALIDITY OF ULTIMATE STRENGTH DESIGN METHODS DEMONSTRATED. THE DIFFICULTIES EXPERIENCED BY DESIGN ENGINEERS IN APPLYING EXISTING CODE FORMULAS ARE SUMMARIZED. AN UNDERSTANDING OF THE BASIC PRINCIPLES OF ULTIMATE STRENGTH METHODS LEADS TO RAPID AND DIRECT DESIGN.
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Ultimate Strength Analysis of Stub Girders
Journal of Structural Engineering, 1995This paper is on the determination of the ultimate load-carrying capacity of stub girders. Two different methods are presented for this purpose. In the first method, the stub girder is modeled as a vierendeel truss girder. Based on an assumed collapse mechanism, shear force distribution between the top and bottom chords proportioned according to the ...
Wang, C.M. +2 more
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Ultimate Bending Strength of Si Nanowires
Nano Letters, 2012Test platforms for the ideal strength of materials are provided by almost defect-free nanostructures (nanowires, nanotubes, nanoparticles, for example). In this work, the ultimate bending strengths of Si nanowires with radii in the 20-60 nm range were investigated by using a new bending protocol.
G, Stan +4 more
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The ultimate strength of solids
Canadian Metallurgical Quarterly, 1974AbstractThere is an upper limit to the mechanical strength of any material under any particular test conditions. This limit is known as the ideal strength. The present paper attempts to define the ideal strength as closely as is presently possible. To this end, a brief account is first given of some of the highest strengths recorded experimentally ...
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High-Strength Concrete in Ultimate Strength Design
Journal of the Structural Division, 1978The ultimate behavior of concrete structural members was predicted based on the knowledge of the concrete and the steel stress-strain curves and using nonlinear computerized methods. The calculated values of ultimate moment and curvature were compared with some experimental values for beams and columns.
Pao-Tsan Wang +2 more
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Journal of Offshore Mechanics and Arctic Engineering, 1988
Abstract An idealized structural unit model is constructed to represent the pre and post-ultimate strength behavior of a damaged tubular member with various boundary conditions subjected to various end loads. Local denting and overall permanent lateral deflection are considered as a damage.
T. Yao, J. Taby, T. Moan
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Abstract An idealized structural unit model is constructed to represent the pre and post-ultimate strength behavior of a damaged tubular member with various boundary conditions subjected to various end loads. Local denting and overall permanent lateral deflection are considered as a damage.
T. Yao, J. Taby, T. Moan
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