Results 211 to 220 of about 1,376 (260)
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On the Origin of Stiffening in Biopolymers
MRS Proceedings, 2005AbstractStrain stiffening of protein networks is explored by means of a finite strain analysis of a two-dimensional network model of cross-linked semiflexible filaments. The results show that stiffening is caused by non-affine network rearrangements that govern a transition from a bending dominated response at small strains to a stretching dominated ...
van der Giessen, E. +3 more
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Stiffened plates with arbitrarily oblique stiffeners
International Journal of Solids and Structures, 1990Abstract An analysis for a stiffened plate with arbitrarily oblique and equally spaced eccentric stiffeners is proposed. In this analysis, the joint effects of stiffeners by the interaction of the plate and stiffeners are taken into account and the effects of stiffeners are not considered as discrete members, but their effects are averaged or ...
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Stability of stiffened cylinders.
AIAA Journal, 1965Design of efficient cylindrical shells for carrying moderate compressive loads leads to the requirement that they be stiffened. The buckling behavior of such stiffened cylinders differs considerably from that of thin monocoque cylinders in several noteworthy respects: 1) Stiffened cylinders are often effectively "thick," and exhibit large buckle ...
John M. Hedgepeth, David B. Hall
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Stiffened panels with varying stiffener sizes
The Aeronautical Journal, 1973Stiffened panels usually consist of a skin of uniform thickness with several identical equally spaced longitudinal stiffeners. This paper demonstrates that the weight of a panel which is designed to have a specified initial buckling load, in uniform longitudinal compression, can be reduced by using more than one size of stiffener.Initial buckling ...
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Diabetes and Arterial Stiffening
2006Type 2 diabetes (DM-2) has become a major global health problem that has been fueled mainly by increasing obesity and aging of the population. Most studies show that arterial stiffening occurs across all age groups in both type 1 diabetes and DM-2, and among those with impaired fasting glucose, impaired glucose tolerance, and the metabolic syndrome ...
Nathaniel, Winer, James R, Sowers
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Demand on Stiffeners in Stiffened Extended End-Plate Connections
Advances in Structural Engineering, 2012The paper reports a study on the effect of stiffeners on stiffness and strength of T-stubs to find out the strength and stiffness demand on stiffeners. The tensile capacity of triangular stiffeners is first analyzed and is compared with that of a long rectangular one, an efficiency factor formula is proposed. A triangular stiffener with length-to-width
W. Zhao, G.S. Tong
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Predicting Stiffener and Stiffened Panel Crippling Stresses
Journal of the Aeronautical Sciences, 1942An empirical method is presented for predicting the crippling stress at L/p < 20 of 24S-T Alclad bent-up sheet stiffeners, 24S-RT Alclad bent-up sheet stiffeners, and 24S-T extruded stiffeners acting alone or in conjunction with 24S-T Alclad sheet as a panel.
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Optimum Design of Curvilinear Stiffened Panels with Stiffening Beams
Applied Mechanics and Materials, 2013The paper presents a framework for design and optimization of curvilinear stiffened panels with any cross-section shape of stiffener. Within this framework, the weight of stiffened panel applied complex loads, is minimized under the constraints of structural responses include global buckling, maximum stress and crippling.
Jun Bo Yang +2 more
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Polyisocyanides: Stiffened Foldamers
2007Item does not contain ...
Otten, Matthijs B.J. +4 more
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On vibration of eccentrically stiffened plates with varying stiffener length
Journal of Sound and Vibration, 1985Results of a study of the variation of natural frequencies with respect to the length of the stiffener of a square panel clamped all along its boundary and stiffened in the middle by a concentric stiffener were recently reported [ 11. Significant increases in certain frequencies, namely those with modes symmetric about both the medians of the plate ...
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