Nonlinear Modelling for the Vibration Analysis of a Rotating Ring with the In-Plane/Out-of-Plane Deformations

2003 ◽  
Vol 27 (1) ◽  
pp. 42-47
Keyword(s):  
Vibration Analysis ◽  
Nonlinear Modelling ◽  
Out Of Plane ◽  
Plane Deformations

scholarly journals In-Process Measurement of Three-Dimensional Deformations Based on Speckle Photography

2021 ◽  
Vol 11 (11) ◽  
pp. 4981
Author(s):  
Andreas Tausendfreund ◽  
Dirk Stöbener ◽  
Andreas Fischer
Keyword(s):  
Evaluation Method ◽  
Process Analysis ◽  
Plane Deformation ◽  
Three Dimensional ◽  
Machining Process ◽  
Image Correlation ◽  
Speckle Photography ◽  
Process Measurement ◽  
Out Of Plane ◽  
Plane Deformations

In the concept of the process signature, the relationship between a material load and the modification remaining in the workpiece is used to better understand and optimize manufacturing processes. The basic prerequisite for this is to be able to measure the loads occurring during the machining process in the form of mechanical deformations. Speckle photography is suitable for this in-process measurement task and is already used in a variety of ways for in-plane deformation measurements. The shortcoming of this fast and robust measurement technique based on image correlation techniques is that out-of-plane deformations in the direction of the measurement system cannot be detected and increases the measurement error of in-plane deformations. In this paper, we investigate a method that infers local out-of-plane motions of the workpiece surface from the decorrelation of speckle patterns and is thus able to reconstruct three-dimensional deformation fields. The implementation of the evaluation method enables a fast reconstruction of 3D deformation fields, so that the in-process capability remains given. First measurements in a deep rolling process show that dynamic deformations underneath the die can be captured and demonstrate the suitability of the speckle method for manufacturing process analysis.

On the competition between in-plane and out-of-plane deformations in laser thermal adjustment

2013 ◽  
Vol 45 ◽  
pp. 689-696 ◽  
Author(s):  
Jing Zhou ◽  
Hong Shen ◽  
Xiang Yu ◽  
Jun Hu ◽  
Zhenqiang Yao
Keyword(s):  
Out Of Plane ◽  
Plane Deformations

scholarly journals Enhanced asymmetric valley scattering by scalar fields in nonuniform out-of-plane deformations in graphene

2018 ◽  
Vol 98 (16) ◽  
Author(s):  
Ramon Carrillo-Bastos ◽  
Marysol Ochoa ◽  
Saúl A. Zavala ◽  
Francisco Mireles
Keyword(s):  
Scalar Fields ◽  
Out Of Plane ◽  
Plane Deformations

scholarly journals Atomistic potential for graphene and other sp2 carbon systems

2017 ◽  
Author(s):  
Zacharias G. Fthenakis ◽  
George Kalosakas ◽  
Georgios D. Chatzidakis ◽  
Costas Galiotis ◽  
Konstantinos Papagelis ◽  
...  
Keyword(s):  
Force Field ◽  
Large Scale ◽  
Dft Calculation ◽  
Carbon Materials ◽  
Phonon Dispersion ◽  
Significant Loss ◽  
Atomistic Simulations ◽  
Carbon Structures ◽  
Out Of Plane ◽  
Plane Deformations

<div>We introduce a torsional force field for sp<sup>2</sup> carbon to augment an in-plane atomistic potential of a previous work (Kalosakas et al, J. Appl. Phys. 113, 134307 (2013)) so that it is applicable to out-of-plane deformations of graphene and related carbon materials. The introduced force field is fit to reproduce DFT calculation data of appropriately chosen structures. The aim is to create a force field that is as simple as possible so it can be efficient for large scale atomistic simulations of various sp<sup>2</sup> carbon structures without significant loss of accuracy. We show that the complete proposed potential reproduces characteristic properties of fullerenes and carbon nanotubes. In addition, it reproduces very accurately the out-of-plane ZA and ZO modes of graphene’s phonon dispersion as well as all phonons with frequencies up to 1000 cm<sup>−1</sup>.</div>

Optical configuration for TV holography measurement of in-plane and out-of-plane deformations

2000 ◽  
Vol 39 (4) ◽  
pp. 573 ◽  
Author(s):  
Nandigana Krishna Mohan ◽  
Angelica Andersson ◽  
Mikael Sjödahl ◽  
Nils-Erik Molin
Keyword(s):  
Out Of Plane ◽  
Optical Configuration ◽  
Plane Deformations

Out-of-Plane Free Vibration Analysis of Timoshenko Arcs with Elastic Supports

2021 ◽  
Vol 25 (6) ◽  
pp. 5-12
Author(s):  
Myung-Soo Choi ◽  
Myung-Jun Kim ◽  
Dong-Jun Yeo
Keyword(s):  
Free Vibration ◽  
Vibration Analysis ◽  
Free Vibration Analysis ◽  
Elastic Supports ◽  
Out Of Plane

Stability Coefficient of Interlocking Compressed Earth Block Masonry under Axial Compression

2020 ◽  
Author(s):  
Tianya Wang ◽  
Yihong Wang ◽  
Guiyuan Zeng ◽  
Jianxiong Zhang ◽  
Dan Shi
Keyword(s):  
Compressive Strength ◽  
Axial Compression ◽  
Design Guidelines ◽  
Stability Coefficient ◽  
Strength Failure ◽  
Compressed Earth Block ◽  
Out Of Plane ◽  
The Stability ◽  
Earth Block ◽  
Plane Deformations

To investigate the effects of the height-thickness ratio (β) on the mechanical properties and stability coefficients (φs) of interlocking compressed earth block (ICEB) masonry members under axial compression, four groups of specimens with different β of 3.75, 6.75, 11.25, and 14.25 were tested, thereby assessing their stress process, failure mode, compressive strength, and in- and out-of-plane deformations. All the specimens underwent brittle failure under axial compression: the compressive strength was found to decrease in a range from 5.6% to 43% with increasing β, whereas the initial stacking defects and the in- and out-of-plane deformations increased. The specimens became less stable, and we noticed that the overall damage was caused by strength failure and not instability failures. Because the stability coefficient of ICEB-based masonry components cannot be calculated as those of more conventional brickwork, we combined our results with well-established masonry design guidelines and derived an interlocking improvement coefficient.

Sign in / Sign up

Export Citation Format

Share Document