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Journal articles on the topic 'The mode of deformation'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Wu, Ze Yu, Bing Wang, Yong Jun Lu, Chen Jing Li, Suai Fu Gu, and Wen Yuan Li. "Structure Mode Geometrical Identification and Application." Applied Mechanics and Materials 438-439 (October 2013): 765–68. http://dx.doi.org/10.4028/www.scientific.net/amm.438-439.765.

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Frequency and mode are character parameters of structure, and mode is also self-contained coordinate basis vector of displacement, so mode can be used for concept design and mechanical design. Through depth-width ratio from one to seven, results indicate the whole deformation of structure varies from shear mode to bend mode gradually; except for vertical mode, general mode is not one deformation, it is coupled by several deformations and one deformation ratio is dominant. During three of depth-width ratio, structure deforms in shear mode, so masonry structure should be in that range. In order

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2

Davenport, S. B., Iain Todd, and Sybrand van der Zwaag. "Significance of Deformation Mode in Hot Deformation." Materials Science Forum 331-337 (May 2000): 443–48. http://dx.doi.org/10.4028/www.scientific.net/msf.331-337.443.

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3

Utyashev, F. Z., A. V. Botkin, E. P. Volkova, and R. Z. Valiev. "Rational Methods of Plastic Deformation Providing Formation of Ultrafine-Grained Structure in Large-Sized Products." Reviews on Advanced Materials and Technologies 6, no. 1 (2024): 12–23. http://dx.doi.org/10.17586/2687-0568-2024-6-1-12-23.

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Based on the peculiarities of plastic deformation mechanics and physical mesomechanics, the processes are considered and technological schemes for their realization are proposed to ensure the formation of ultrafine-grained structure in axisymmetric products of large sizes. Deformation of coarse-grained materials in temperature-velocity conditions of superplastic deformation and methods of severe plastic deformation are taken as methods of preparation of such a structure. All of these deformations include large strain, and they are carried out at low hydraulic press speeds, but at different tem

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Wang, Ning, Yu Zhang, Guofeng Zhang, Wenchuan Zhao, and Linghui Peng. "Development and Analysis of Key Components of a Multi Motion Mode Soft-Bodied Pipe Robot." Actuators 11, no. 5 (2022): 125. http://dx.doi.org/10.3390/act11050125.

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In order to enhance the environmental adaptability of peristaltic soft-bodied pipe robots, based on the nonlinear and hyperelastic characteristics of silicone rubber combined with the biological structure and motion characteristics of worms, a hexagonal prism soft-bodied bionic actuator is proposed. The actuator adopts different inflation patterns to produce different deformations, so that the soft-bodied robot can realize different motion modes in the pipeline. Based on the Yeoh binomial parameter silicone rubber constitutive model, the deformation analysis model of the hexagonal prism soft-b

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Yang, Ke, Yue-De Yang, Jin-Long Xiao, and Yong-Zhen Huang. "Single-mode lasing in a coupled twin circular-side-octagon microcavity." Chinese Physics B 31, no. 9 (2022): 094205. http://dx.doi.org/10.1088/1674-1056/ac6802.

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We demonstrate the curvature of coupled twin circular-side-octagon microcavity (TCOM) lasers as the degree of freedom to realize manipulation of mode quality (Q) factor and lasing characteristics. Numerical simulation results indicate that mode Q factors varying from 104 to 108, wavelength intervals of different transverse modes, and mode numbers for four-bounce modes can be manipulated for five different deformations. Global mode distributes throughout coupled microcavity with mode Q factor around the order of 104 or 105. Four-bounce modes lase with injection currents applied single microcavi

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Cao, Wenhan, Zhiping Wen, Yanming Feng, Shuai Zhang, and Huaizhi Su. "A Multi-Point Joint Prediction Model for High-Arch Dam Deformation Considering Spatial and Temporal Correlation." Water 16, no. 10 (2024): 1388. http://dx.doi.org/10.3390/w16101388.

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Deformation monitoring for mass concrete structures such as high-arch dams is crucial to their safe operation. However, structure deformations are influenced by many complex factors, and deformations at different positions tend to have spatiotemporal correlation and variability, increasing the difficulty of deformation monitoring. A novel deep learning-based monitoring model for high-arch dams considering multifactor influences and spatiotemporal data correlations is proposed in this paper. First, the measurement points are clustered to capture the spatial relationship. Successive multivariate

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Sheng, Xingwang, Weiqi Zheng, Jianxian Wu, and Handong Zhang. "Influence of Local Deformation Mode of Cable-Stayed Bridge on Unballasted Tracks: Experimental Research." Advances in Civil Engineering 2020 (February 18, 2020): 1–10. http://dx.doi.org/10.1155/2020/2316524.

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The complex local deformation modes of the cable-stayed bridge influence the deformation characteristics of the unballasted tracks laid on it. In this work, a large-scale segment model of a cable-stayed bridge was fabricated, and the maximum upward bending deformation mode of the cable-stayed bridge was realized by multipoint loading on the segment model to study the deformation behaviors of the unballasted tracks. Experimental results indicated that the nonlinear behaviors of the rubber isolation layers are apparent with the loading increased, and the interlayer behaviors of the unballasted t

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An, Feng Bao, Ping Yang, Xin Ping Yan, and Ming Li. "Influence Analysis of Hull Deformation on Dynamic Behavior of Propulsion Shafting." Advanced Materials Research 904 (March 2014): 432–36. http://dx.doi.org/10.4028/www.scientific.net/amr.904.432.

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The aim of this paper is to study the influence of hull deformation on dynamic behavior of ship propulsion shafting. Taking an 8530TEU container ship as an objective and using the finite element method, a global ship structure model is built up to evaluate the hull deformations under typical loading cases. Then the hull bottom-propulsion shafting integrated model is adopted to analyze the effect of hull deformation on shafting natural frequency under dry and wet mode. The results show that the natural frequencies of the shafting will increase due to the effect of hull deformation. Consequently

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Lin, Qingtao, Caixia Guo, Xu Meng, Hongyu Dong, and Fanchao Kong. "Experimental Research on the Settlement Feature of Two Ground Deformation Modes Induced by Tunnelling." Mathematics 11, no. 10 (2023): 2351. http://dx.doi.org/10.3390/math11102351.

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Two ground deformation modes, i.e., the arching mode and collapsing mode, may be caused by tunnel excavation. However, the development of the ground deformation corresponding to the two modes is unclear. A piece of a model test facility is designed to study the ground settlement induced by tunnel excavation. Tunnel excavation is realized by decreasing the area of the model tunnel. Two model tests with different soil cohesion are conducted, and the two ground deformation modes form in the two tests, respectively. The former mode is observed at higher soil cohesion while the latter is found to d

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Kadlowec, Jennifer, Alan Wineman, and Gregory Hulbert. "Coupled Response Model for Elastomeric Bushings." Rubber Chemistry and Technology 74, no. 2 (2001): 338–52. http://dx.doi.org/10.5254/1.3544955.

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Abstract Elastomeric bushings are essential components in tuning vehicle suspension systems. A nonlinear viscoelastic force—deformation relation, which is computationally convenient for use in multibody dynamics simulations of automotive suspensions, is presented. This force—deformation relation extends a single mode force—deformation relation to include coupling effects due to combined radial—torsional deformations. The relation contains a force relaxation function, which is dependent upon the radial displacements and angular rotations imposed on the bushing. The relaxation function is constr

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Hamada, Shigeru, Kejin Zhang, Motomichi Koyama, Masaharu Ueda, and Hiroshi Noguchi. "Fatigue crack propagation modes: plastic deformation mode and damage accumulation mode." International Journal of Fracture 222, no. 1-2 (2020): 111–22. http://dx.doi.org/10.1007/s10704-020-00433-7.

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12

Ismail, Mohd Idris Shah, Yasuhiro Okamoto, and Akira Okada. "Thermo-Mechanical Analysis on Thermal Deformation of Thin Stainless Steel in Laser Micro-Welding." International Journal of Manufacturing, Materials, and Mechanical Engineering 6, no. 2 (2016): 51–66. http://dx.doi.org/10.4018/ijmmme.2016040104.

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In the present study, a three-dimensional finite element model has been developed to simulate the temperature, stress and deformation fields in continuous wave (CW) laser micro-welding of thin stainless steel sheet. The welding deformation was experimentally evaluated using a single-mode fiber laser with a high-speed scanning system. Application of developed thermal model demonstrated that the laser parameters, such as laser power, scanning velocity and spot diameter have a significant effect on temperature field and the weld pool. In the case of welding deformation, numerical simulation was c

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Mohri, Atsushi, Yoshiaki Kikuchi, and Shohei Noda. "Model experiment and numerical analysis of horizontal subgrade reactions acting on flexible walls." IOP Conference Series: Materials Science and Engineering 1289, no. 1 (2023): 012096. http://dx.doi.org/10.1088/1757-899x/1289/1/012096.

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Abstract A method of reinforcing breakwaters with piles has been proposed. In this structure, designing piles as passive piles is important. Although most previous studies on horizontal subgrade reactions have been limited to the deformation mode of walls, the subgrade reaction to the wall is known to depend on the deformation mode of the wall. Herein, we investigated the changes in the subgrade reaction due to different deformation modes of the wall using model loading experiments and finite element analysis. The model ground was simulated using an aluminum rod mass, and an aluminum plate was

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14

Setiyana, Budi, Imam Syafaat, Jamari Jamari, and DikJoe Schipper. "FRICTION ANALYSIS ON SCRATCH DEFORMATION MODES OF VISCO-ELASTIC-PLASTIC MATERIALS." Reaktor 14, no. 3 (2013): 199. http://dx.doi.org/10.14710/reaktor.14.3.199-203.

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Understanding of abrasion resistance and associated surfaces deformation mechanisms is of primary importance in materials engineering and design. Instrumented scratch testing has proven to be a useful tool for characterizing the abrasion resistance of materials. Using a conical indenter in a scratch test may result in different deformation modes, like as elastic deformation, ironing, ductile ploughing and cutting. This paper presents the friction analysis of some deformation modes of visco-elastic-plastic behaving polymer materials, especially PEEK (poly ether ether ketone).In general, it is a

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15

Joung, II-bok, and Y. S. Shin. "A New Model on Transient Wave Propagation in Fluid-Filled Tubes." Journal of Pressure Vessel Technology 109, no. 1 (1987): 88–93. http://dx.doi.org/10.1115/1.3264860.

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A new theory was developed for the fluid-filled semi-infinite tube model subjected to pressure impulse. The new model takes into account the shear and flexural waves of the elastic tube. The tube displacement field is axisymmetric. Axial deformations are based on the uniform extensional symmetric mode, and antisymmetric flexural mode along the tube thickness. Radial deformation is based on the uniform symmetric mode about the tube axis. Walker-Phillips’ theory can be recovered as a special, limiting case.

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Kolar, Michal, Katharina Teichmann, Sverre Gulbrandsen-Dahl, Ketill Olav Pedersen, and Knut Marthinsen. "Combined Effect of Deformation and Precipitation on Tensile Properties of an Al-Mg-Si Alloy." Materials Science Forum 706-709 (January 2012): 351–56. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.351.

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In the present work we report on the effect of pre-deformation followed by/together with artificial aging on the mechanical properties as strength, ductility and work hardening of an Al-Mg-Si alloy (AA6060). The AA6060 alloy was initially cast, homogenized and extruded according to standard industrial practice. The extruded material was then subjected to a solution heat treatment and subsequently artificially aged after (sequential mode) and during (simultaneous mode) various combinations of deformation (0-10%) and heat treatments. The aging behaviour and mechanical properties have been charac

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17

Zhang, Yubing, Yong Wang, Guang Sun, Jiazhen Han, and Yudong Xie. "EFFECTS OF TWO TYPES OF CONTROLLABLE DEFORMATION ON ENERGY EXTRACTION OF A FLEXIBLE HYDROFOIL." Brodogradnja 73, no. 1 (2022): 109–26. http://dx.doi.org/10.21278/brod73106.

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Energy extraction capacity of controllably flexible hydrofoil was studied under two identified deformation modes. Deformation modes, flexure parameters (flexure amplitude  and flexure coefficient ) and motion parameters (reduced frequency f* and pitching amplitude 0) were investigated to understand the effects of controllably flexible deformation on energy extraction. The results reveal that deformation modes affect the effective angle of attack and vortex structure, which influence hydrodynamic performance. The energy extraction capacity improves from the deformation mode 2 to the rigid hy

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18

Chen, Kaiguo, San-Qiang Shi, and Jian Lu. "Deformation twins induced by multi-mode deformation in nanocrystalline copper." Philosophical Magazine Letters 93, no. 8 (2013): 490–97. http://dx.doi.org/10.1080/09500839.2013.813653.

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Kwon, Y. W., and P. M. McDermott. "Effects of Void Growth and Nucleation on Plastic Deformation of Plates With Fluid-Structure Interaction." Journal of Pressure Vessel Technology 123, no. 4 (2001): 480–85. http://dx.doi.org/10.1115/1.1400740.

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A plate-bending formulation was developed from a three-dimensional solid. The plate element includes both transverse shear and normal deformations and the transverse gradient load (TGL) which is associated with the transverse normal deformation. The element utilizes reduced integration along the in-plane axes and full integration along the transverse axis. The formulation incorporates Gurson’s constitutive model for void growth and plastic deformation. An algorithm for stable solutions of the nonlinear constitutive equations is also discussed. Hourglass mode control is provided by adding a sma

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Liu, Yong, De Qiang Sun, Xiao Yong Pan, and Guo Hong Yao. "In-Plane Dynamics of Multilayer A-Type U-Shaped Corrugated Structure Materials." Advanced Materials Research 594-597 (November 2012): 937–41. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.937.

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The finite element methodology is conceived to obtain the mechanical parameters about dynamic performance of multilayer A-type U-shaped corrugated structure materials under the in-plane crushing loadings with various impact velocities. A simplified energy absorption model is proposed to evaluate the energy-absorption performance. The evaluation model shows that the optimal energy absorption per unit volume is mainly determined by the dynamic plateau stress. The homogeneous deformation mode, transition deformation mode and dynamic deformation mode are gradually observed with the increasing impa

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Sato, Motohiro, Yu Yachi, Ikuyo Koike, Hiroyuki Shima, and Yoshitaka Umeno. "Cross-Sectional Deformation in Multi-Walled Carbon Nanotubes under Hydrostatic Pressure." Solid State Phenomena 258 (December 2016): 65–68. http://dx.doi.org/10.4028/www.scientific.net/ssp.258.65.

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This contribution provides simulated results of cross-sectional deformations observed in carbon nanotubes under high pressure. Molecular dynamics (MD) simulations were performed to explore radial buckling characteristics of multi-walled carbon nanotubes, and confirmed a variety of large-amplitude deformation modes. The energetically stable deformation mode turned out to be strongly dependent on the diameter of the innermost tube and the number of concentric walls. Critical buckling pressure obtained by MD simulations was compared with that estimated from a continuum elastic approximation, by w

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Sheremetyeva, Olga, and Boris Shevtsov. "Fractional Model of the Deformation Process." Fractal and Fractional 6, no. 7 (2022): 372. http://dx.doi.org/10.3390/fractalfract6070372.

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The article considers the fractional Poisson process as a mathematical model of deformation activity in a seismically active region. The dislocation approach is used to describe five modes of the deformation process. The change in modes is determined by the change in the intensity of the event stream, the regrouping of dislocations, and the change in and the appearance of stable connections between dislocations. Modeling of the change of deformation modes is carried out by changing three parameters of the proposed model. The background mode with independent events is described by a standard Po

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Streltsov, Dmitry R., Kirill M. Borisov, Aleksandra A. Kalinina, and Aziz M. Muzafarov. "Quantitative Elasticity Mapping of Submicron Silica Hollow Particles by PeakForce QNM AFM Mode." Nanomaterials 13, no. 13 (2023): 1916. http://dx.doi.org/10.3390/nano13131916.

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Silica hollow spheres with a diameter of 100–300 nm and a shell thickness of 8±2 nm were synthesized using a self-templating amphiphilic polymeric precursor, i.e., poly(ethylene glycol)-substituted hyperbranched polyethoxysiloxane. Their elastic properties were addressed with a high-frequency AFM indentation method based on the PeakForce QNM (quantitative nanomechanical mapping) mode enabling simultaneous visualization of the surface morphology and high-resolution mapping of the mechanical properties. The factors affecting the accuracy of the mechanical measurements such as a local slope of th

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Wang, Qixuan. "Optimal Strokes of Low Reynolds Number Linked-Sphere Swimmers." Applied Sciences 9, no. 19 (2019): 4023. http://dx.doi.org/10.3390/app9194023.

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Optimal gait design is important for micro-organisms and micro-robots that propel themselves in a fluid environment in the absence of external force or torque. The simplest models of shape changes are those that comprise a series of linked-spheres that can change their separation and/or their sizes. We examine the dynamics of three existing linked-sphere types of modeling swimmers in low Reynolds number Newtonian fluids using asymptotic analysis, and obtain their optimal swimming strokes by solving the Euler–Lagrange equation using the shooting method. The numerical results reveal that (1) wit

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Shashenko, Oleksandr, Vladyslava Cherednyk, Natalia Khoziaikina, and Dmitro Shashenko. "PHYSICAL PREREQUISITES FOR GAS PERMEABILITY SIMULATION OF MINED ROCK MASS." JOURNAL of Donetsk Mining Institute, no. 2 (2021): 78–84. http://dx.doi.org/10.31474/1999-981x-2021-2-78-84.

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Purpose. Justification of the gas collectors formation physical model on the basis of research of conformity of permeability of rock mass to the full diagram of rock sample deformation. Methodology consists in sequential analysis of the stages of the complete deformation diagram of the rock specimen under “hard” loading, comparing them with the stages of formation of the high stress zone in front of the lava bottom and statistical analysis of laboratory test results. Results. Based on the rock’s deformation properties analysis and their comparison with the rock sample full deformation diagram,

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Winhausen, Lisa, Kavan Khaledi, Mohammadreza Jalali, Janos L. Urai, and Florian Amann. "Failure mode transition in Opalinus Clay: a hydro-mechanical and microstructural perspective." Solid Earth 13, no. 5 (2022): 901–15. http://dx.doi.org/10.5194/se-13-901-2022.

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Abstract. The way rocks deform under changing stress conditions can be described by different deformation modes, which is fundamental for understanding their rheology. For Opalinus Clay, which is regarded as a potential host rock for nuclear waste, we investigate the failure mode as a function of applied effective stress in laboratory experiments. Therefore, we performed consolidated undrained triaxial tests at different effective consolidation stresses from 2.5 to 16 MPa, in which samples were loaded parallel to bedding, and analysed the deformation structures using ion-beam polishing and ele

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Bevacqua, Alexander, Sachit Bakshi, and Yu Xia. "Principal component analysis of alpha-helix deformations in transmembrane proteins." PLOS ONE 16, no. 9 (2021): e0257318. http://dx.doi.org/10.1371/journal.pone.0257318.

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α-helices are deformable secondary structural components regularly observed in protein folds. The overall flexibility of an α-helix can be resolved into constituent physical deformations such as bending in two orthogonal planes and twisting along the principal axis. We used Principal Component Analysis to identify and quantify the contribution of each of these dominant deformation modes in transmembrane α-helices, extramembrane α-helices, and α-helices in soluble proteins. Using three α-helical samples from Protein Data Bank entries spanning these three cellular contexts, we determined that th

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Dai, Shen, Zhiyao Ling, Han Gong, and Kunwei Zheng. "A Low-Power Electrothermal Flexible Actuator with Independent Heating Control for Programmable Shape Deformation." Micromachines 16, no. 4 (2025): 456. https://doi.org/10.3390/mi16040456.

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Flexible actuators hold significant promise for applications in intelligent robotics, wearable devices, and biomimetic systems. However, conventional actuators face challenges such as high driving voltages, inadequate deformation control, and limited deformation modes, which hinder complex programmable dynamic deformations. This study presents an electrothermal actuator based on a conductive silver paste/Kapton/PDMS composite structure, enabling precise and adjustable deformation through programmable thermal control. Experimental results show that the actuator achieves a large-angle bending (∼

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Date, Hidefumi. "Effects of Deformation Mode on Resistivity Curve Used for Estimating Martensite Induced in Stainless Steel." Materials Science Forum 638-642 (January 2010): 2992–97. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.2992.

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The martensite induced in three types of austenitic stainless steel, which indicate the different stability of the austenitic phase (γ), were estimated by the resistivity measured during the tensile deformation or compressive deformation at the temperatures 77, 187 and 293 K. The resistivity curves were strongly dependent on the deformation mode. The volume fraction of the martensite (α’) was also affected by the deformation mode. The ε phase, which is the precursor of the martensite and is induced from the commencement of the deformation, decreased the resistivity. However, lots of defects ge

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Luo, Y. X., J. H. Hamilton, J. O. Rasmussen та ін. "Triaxial deformations in neutron-rich nuclei with Z = 41 – 46, A ~ 100 – 116 based on prompt fission γ spectroscopy". EPJ Web of Conferences 178 (2018): 02021. http://dx.doi.org/10.1051/epjconf/201817802021.

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Avdeenko, Aleksei, Yri Krupin, and Natalija Pimenova. "Rotational deformation mode of porous structures." PNRPU Mechanics Bulletin, no. 3 (September 30, 2014): 5–16. http://dx.doi.org/10.15593/perm.mech/2014.3.01.

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Chen, T. W., Q. D. Duan, X. D. Zheng, R. Gan, and M. Pan. "DAM DEFORMATION PREDICTION BASED ON EEMD-SARIMA MODE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3/W10 (February 8, 2020): 1091–97. http://dx.doi.org/10.5194/isprs-archives-xlii-3-w10-1091-2020.

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Abstract. There are many factors affecting dam deformation, and the time series of deformation data is directly modeled without considering the seasonality and periodicity of each influencing factor, the Ensemble Empirical Mode Decomposition (EEMD) and the Seasonal Autoregressive Integrated Moving Average (SARIMA) is proposed for prediction in this paper. Firstly, the time series of deformation data is decomposed by EEMD, which weakens its volatility to some extent, and decomposes various factors affecting dam deformation, so as to obtain a series of Intrinsic Mode Function (IMF) with differen

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Shigeyuki, Haruyama, Didik Nurhadiyanto, Kazuya Ushijima, Ken Kaminishi, and Dai Heng Chen. "Deformation Characteristic of Thin Stainless Gasket Material." Applied Mechanics and Materials 392 (September 2013): 3–8. http://dx.doi.org/10.4028/www.scientific.net/amm.392.3.

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Previous studies on corrugated metal gaskets have established that the contact width, contact stress, and surface roughness are important design parameters for optimizing gasket performance. However, the metal gaskets studied previously required a high axial force for the tightening process; in addition that metal gaskets tend to corrode easily. In this study, we examined the deformation mode of a thin stainless gasket using a finite element method (FEM) analysis. A final evaluation was made using a compression examination. The analysis based on the dimension of flat and convex portion. The lo

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Shi, A., L. Jiang, L. Zhou, H. Tang, B. Wei, and J. Li. "DEFORMATION EXTRACTION AND ANALYSIS OF COSEISMIC DEFORMATION FIELD BASED ON D-INSAR TECHNOLOGY." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B3-2022 (May 31, 2022): 1161–66. http://dx.doi.org/10.5194/isprs-archives-xliii-b3-2022-1161-2022.

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Abstract. Extracting the seismic deformation field and analyzing the surface deformation after an earthquake occurs are of great significance for explaining earthquake mechanism and earthquake relief. Through the dual polarization mode of the two-pass method D-InSAR technology, this paper extracted the coseismic deformation fields based on two Sentinel-1A SAR images covering the Yulin earthquake area, and analyzed the surface deformation. The results show that the subsidence area obtained by VV and VH polarization modes are consistent. The uplift center areas are located in Tongxin Village in

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Farrell, K., T. S. Byun, and N. Hashimoto. "Deformation mode maps for tensile deformation of neutron-irradiated structural alloys." Journal of Nuclear Materials 335, no. 3 (2004): 471–86. http://dx.doi.org/10.1016/j.jnucmat.2004.08.006.

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Athreya, C. N., S. Suwas, and V. Subramanya Sarma. "Influence of Deformation Mode on Hot Deformation Behavior of CP Titanium." Materials Performance and Characterization 9, no. 2 (2019): 20190072. http://dx.doi.org/10.1520/mpc20190072.

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Brown, Donald W., Sean R. Agnew, S. P. Abeln, et al. "The Role of Texture, Temperature and Strain Rate in the Activity of Deformation Twinning." Materials Science Forum 495-497 (September 2005): 1037–42. http://dx.doi.org/10.4028/www.scientific.net/msf.495-497.1037.

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Plastic deformation in cubic metals is relatively simple due to the high crystallographic symmetry of the underlying structure. Typically, one unique slip mode can provide arbitrary deformation. This is not true in lower symmetry hexagonal metals, where prismatic and basal slip (the usual favored modes) are insufficient to provide arbitrary deformation. Often, either pyramidal slip and/or deformation twinning must be activated to accommodate imposed plastic deformation. The varied difficulty of activating each of these deformation mechanisms results in a highly anisotropic yield surface and su

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Larour, Eric, Eric Rignot, and Denis Aubry. "Processes involved in the propagation of rifts near Hemmen Ice Rise, Ronne Ice Shelf, Antarctica." Journal of Glaciology 50, no. 170 (2004): 329–41. http://dx.doi.org/10.3189/172756504781829837.

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AbstractInterferometric radar images collected by ERS-1, ERS-2 and RADAR- SAT-1 are used to observe the rupture tip of rifts that propagate along Hemmen Ice Rise on the Ronne Ice Shelf, Antarctica. Interferograms generated in 1992 and 1997 allow for the observation of ice deformation accumulated over 9 and 24 days respectively. These interferograms are combined, in order to separate the continuous process of creep deformation from the more cyclic motion caused by variations in ocean tide. An examination of local gradients in creep deformation reveals the pattern of ice deformation around and n

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Kim, J., A. Palazzolo, and R. Gadangi. "Dynamic Characteristics of TEHD Tilt Pad Journal Bearing Simulation Including Multiple Mode Pad Flexibility Model." Journal of Vibration and Acoustics 117, no. 1 (1995): 123–35. http://dx.doi.org/10.1115/1.2873856.

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An approach for incorporating the heat transfer and elastic deformation effects into dynamic coefficient calculation is presented. A global analysis method is used, which finds the equilibrium pad tilt angles at each eccentricity position and includes cross-film variable viscosity, heat transfer effects in the lubricant, elastic deformation, heat conduction effects in the pads, and elastic deformation effect in the pivots. Deflection modes are used to approximate deformation of the top surface of the pads. The dynamic coefficients of a single pad are calculated at the equilibrium state of the

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Tadmor, Gilead, Oliver Lehmann, Bernd R. Noack, et al. "Reduced-order models for closed-loop wake control." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 369, no. 1940 (2011): 1513–24. http://dx.doi.org/10.1098/rsta.2010.0367.

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We review a strategy for low- and least-order Galerkin models suitable for the design of closed-loop stabilization of wakes. These low-order models are based on a fixed set of dominant coherent structures and tend to be incurably fragile owing to two challenges. Firstly, they miss the important stabilizing effects of interactions with the base flow and stochastic fluctuations. Secondly, their range of validity is restricted by ignoring mode deformations during natural and actuated transients. We address the first challenge by including shift mode(s) and nonlinear turbulence models. The resulti

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Cao, Jiangping, Gang Li, Yuanhui Peng, and Chang Yang. "Influence analysis of beam support mode on linear guide deformation." E3S Web of Conferences 260 (2021): 03017. http://dx.doi.org/10.1051/e3sconf/202126003017.

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As the basis of carrying guide rail operation, beam support mode has been widely used in high-end manufacturing, equipment, mechanical engineering and other fields. With beam support and rotating structure driving position and attitude changes, flexible three-dimensional space movement can be realized.The key technology of the beam support to drive the branch guide rail is to control the deformation of the guide rail. The deformation of the guide rail mainly affects the guide rail structure, stiffness, supporting mode, driver design and load, etc.When the driving mode, driving position and dri

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Balbi, Valentina, Tom Shearer, and William J. Parnell. "A modified formulation of quasi-linear viscoelasticity for transversely isotropic materials under finite deformation." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 474, no. 2217 (2018): 20180231. http://dx.doi.org/10.1098/rspa.2018.0231.

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The theory of quasi-linear viscoelasticity (QLV) is modified and developed for transversely isotropic (TI) materials under finite deformation. For the first time, distinct relaxation responses are incorporated into an integral formulation of nonlinear viscoelasticity, according to the physical mode of deformation. The theory is consistent with linear viscoelasticity in the small strain limit and makes use of relaxation functions that can be determined from small-strain experiments, given the time/deformation separability assumption. After considering the general constitutive form applicable to

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Poole, C. D., J. P. Meester, and H. M. Presby. "Two-mode fibre spatial-mode converter using periodic core deformation." Electronics Letters 30, no. 17 (1994): 1437–38. http://dx.doi.org/10.1049/el:19940948.

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Tang, Liling, Yuxi Ding, Lei Liu, and Junshi Zhang. "Realizing pure shear mode of dielectric elastomers by tuning biaxial prestress of a deformation controller." Smart Materials and Structures 31, no. 1 (2021): 015016. http://dx.doi.org/10.1088/1361-665x/ac383e.

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Abstract In this article, we propose a method to realize the pure shear deformation mode of dielectric elastomer (DE) membranes by tuning two in-plane prestresses. With utilization of carbon grease electrodes, VHB 4905 membranes are prestretched and attached into a retractable device, forming a pure-shear deformation controller. Experimental results demonstrate that, accurate pure shear deformation mode of DEs can be realized by tuning the mechanical loads in the two directions of the deformation controller. Furthermore, large deformation in the direction of free state can be achieved without

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Zhou, Yin, Jinyu Zhu, Lidu Zhao, et al. "High-Precision Monitoring Method for Bridge Deformation Measurement and Error analysis Based on Terrestrial Laser Scanning." Remote Sensing 16, no. 13 (2024): 2263. http://dx.doi.org/10.3390/rs16132263.

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In bridge structure monitoring and evaluation, deformation data serve as a crucial basis for assessing structural conditions. Different from discrete monitoring points, spatially continuous deformation modes provide a comprehensive understanding of deformation and potential information. Terrestrial laser scanning (TLS) is a three-dimensional deformation monitoring technique that has gained wide attention in recent years, demonstrating its potential in capturing structural deformation models. In this study, a TLS-based bridge deformation mode monitoring method is proposed, and a deformation mod

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LaCasce, J. H., and Sjoerd Groeskamp. "Baroclinic Modes over Rough Bathymetry and the Surface Deformation Radius." Journal of Physical Oceanography 50, no. 10 (2020): 2835–47. http://dx.doi.org/10.1175/jpo-d-20-0055.1.

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AbstractThe deformation radius is widely used as an indication of the eddy length scale at different latitudes. The radius is usually calculated assuming a flat ocean bottom. However, bathymetry alters the baroclinic modes and hence their deformation radii. In a linear quasigeostrophic two-layer model with realistic parameters, the deep flow for a 100-km wave approaches zero with a bottom ridge roughly 10 m high, leaving a baroclinic mode that is mostly surface trapped. This is in line with published current meter studies showing a primary EOF that is surface intensified and has nearly zero fl

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Zhang, Hongtao, Yufei Zhao, and Mingxu Gao. "Seismic Sequence Effects on Buried Pipelines Crossing Nonuniform Sites with Ground Settlement by Dynamic Centrifuge Test." Advances in Civil Engineering 2022 (April 20, 2022): 1–13. http://dx.doi.org/10.1155/2022/1133036.

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The deformation and residual strength of the buried pipeline caused by the earthquake in nonuniform sites has an important influence on the safety of the pipeline. Most of the previous research focuses on the permanent ground deformation (PGD) caused by fault or transient ground deformation (TGD) due to seismic wave propagation independently. The mechanical character of buried pipelines crossing nonuniform sites during seismic sequence after ground settlement has not been studied. This article carried out a dynamic centrifuge experiment to simulate the seismic response of buried pipelines of p

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Yeoh, O. H. "Characterization of Elastic Properties of Carbon-Black-Filled Rubber Vulcanizates." Rubber Chemistry and Technology 63, no. 5 (1990): 792–805. http://dx.doi.org/10.5254/1.3538289.

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Abstract A novel strain-energy function which is a simple cubic equation in the invariant (I1−3) is proposed for the characterization of the elastic properties of carbon-black-filled rubber vulcanizates. Conceptually, the proposed function is a material model with a shear modulus which varies with deformation. This contrasts with the neo-Hookean and Mooney-Rivlin models which have a constant shear modulus. The variation of shear modulus with deformation is commonly observed with filled rubbers. Initially, the modulus falls with increasing deformation, leading to a flattening of the shear stres

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YAMAMOTO, Masafumi, Toshiaki HISADA, and Hirohisa NOGUCHI. "Homogenization Method for Large Deformation Problem by Using Characteristic Deformation Mode Superposition." Transactions of the Japan Society of Mechanical Engineers Series A 67, no. 664 (2001): 1877–84. http://dx.doi.org/10.1299/kikaia.67.1877.

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Tăbăcaru, Lucian, Gavril Muscă, and Alexandra Dzedzid. "Experimental research on the elastic deformation mode of 1C45 (1.0503) SR EN 10083- 1.2 rolled steel fastened between the centers of an universal lathe." MATEC Web of Conferences 178 (2018): 01010. http://dx.doi.org/10.1051/matecconf/201817801010.

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Elastic deformations of the technological system occur during the mechanical treatment of a blank, regardless of the manner in which it is fastened. The elastic deformation of the blank is significant especially when machining shaft-like parts. The purpose of our research is to compare the mathematical model of blank deformation to the experimental model when the blank, which is a part belonging to the shaft class, is fastened between centers.

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