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Bending

About: Bending is a(n) research topic. Over the lifetime, 41690 publication(s) have been published within this topic receiving 427769 citation(s).
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01 Jan 2008-
Abstract: A method is presented in which fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened. This assumption may be regarded as a way of expressing the energy adsorption GC in the energy balance approach, but it is also in agreement with results of tension tests. As a demonstration the method has been applied to the bending of an unreinforced beam, which has led to an explanation of the difference between bending strength and tensile strength, and of the variation in bending strength with beam depth.

5,032 citations


Journal ArticleDOI
Abstract: A method is presented in which fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened. This assumption may be regarded as a way of expressing the energy adsorption GC in the energy balance approach, but it is also in agreement with results of tension tests. As a demonstration the method has been applied to the bending of an unreinforced beam, which has led to an explanation of the difference between bending strength and tensile strength, and of the variation in bending strength with beam depth.

4,900 citations



Journal ArticleDOI
Abstract: As an analog to the bending case published in an earlier paper, the stress singularities in plates subjected to extension in their plane are discussed. Three sets of boundary conditions on the radial edges are investigated: free-free, clamped-clamped, and clamped-free. Providing the vertex angle is less than 180 degrees, it is found that unbounded stresses occur at the vertex only in the case of the mixed boundary condition with the strength of the singularity being somewhat stronger than for the similar bending case. For vertex angles between 180 and 360 degrees, all the cases considered may have stress singularities. In amplification of some work of Southwell, it is shown that there are certain analogies between the characteristic equations governing the stresses in extension and bending, respectively, if ν, Poisson's ratio, is replaced by -ν. Finally, the free-free extensional plate behaves locally at the origin exactly the same as a clamped-clamped plate in bending, independent of Poisson's ratio. In conclusion, it is noted that the free-free case analysis may be applied to stress concentrations in V-shaped notches.

2,048 citations


1


Journal ArticleDOI
16 Sep 1994-Science
TL;DR: A field-effect transistor has been fabricated from polymer materials by printing techniques, which shows high current output, and opens the way for large-area, low-cost plastic electronics.
Abstract: A field-effect transistor has been fabricated from polymer materials by printing techniques. The device characteristics, which show high current output, are insensitive to mechanical treatments such as bending or twisting. This all-organic flexible device, realized with mild techniques, opens the way for large-area, low-cost plastic electronics.

1,445 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202267
20211,910
20201,892
20192,210
20181,947
20171,773

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Topic's top 5 most impactful authors

Weishan Chen

49 papers, 842 citations

J. N. Reddy

48 papers, 5.1K citations

Yun Jae Kim

48 papers, 627 citations

Ashraf M. Zenkour

45 papers, 1K citations

Yingxiang Liu

37 papers, 647 citations