Applied and Computational Mechanics最新文献_第10页

Finite Element and Experimental Investigation on the Effect of Repetitive Shock in Corrugated Cardboard Packaging 重复冲击对瓦楞纸板包装影响的有限元及实验研究

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2020.35968.2771

V. D. Luong, A. Bonnin, F. Abbès, J. Nolot, D. Erre, B. Abbès

{"title":"Finite Element and Experimental Investigation on the Effect of Repetitive Shock in Corrugated Cardboard Packaging","authors":"V. D. Luong, A. Bonnin, F. Abbès, J. Nolot, D. Erre, B. Abbès","doi":"10.22055/JACM.2020.35968.2771","DOIUrl":"https://doi.org/10.22055/JACM.2020.35968.2771","url":null,"abstract":"The primary concern of the current study is estimating the repetitive shock induced damages leading to cumulative fatigue on corrugated cardboard boxes experimentally and numerically. Repetitive shock tests were performed on boxes using a vibration table to construct a Damage Boundary Curve (DBC). To computationally determine this curve, a finite element approach is proposed using an elastoplastic homogenization model for corrugated cardboard. The proposed model was implemented in the finite element software ABAQUS. Thanks to adopted model simplifications, a box can be easily and reliably modelled as a homogenized structure. A calibration method is used to compute a set of effective parameters in homogenized model in order to keep its behavior qualitatively and quantitatively close to the response of a full structural model. For verification, the identified model is used to simulate the box compression test. To replicate the experimental tests, simulations of successive repetitive shock pulses are carried with the proposed model for oligocyclique and limited endurance fatigue. To reduce computational costs, we propose a simple method for unlimited endurance fatigue by extrapolating a trend line after some training cycles. The proposed method shows good agreement with experimental results.","PeriodicalId":37801,"journal":{"name":"Applied and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42720950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Unsteady MHD Mixed Convection Flow of Water over a Sphere with Mass Transfer 带传质的非定常MHD混合对流水在球上的流动

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2021.35920.2761

A. Jenifer, P. Saikrishnan, R. Lewis

引用次数: 13

Influence of Pressure on the Frequency Spectrum of Micro and Nanoresonators on Hinged Supports 压力对铰链支撑微纳谐振器频谱的影响

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2021.36470.2848

M. Ilgamov, A. G. Khakimov

引用次数: 3

Nonlinear Biodynamic Models of the Hand-arm System and Parameters Identification using the Vibration Transmissibility or the Driving-point Mechanical Impedance 基于振动传递率或驱动点机械阻抗的手臂系统非线性生物动力学模型及参数识别

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2021.35508.2672

Nahid Hida, Mohamed Abid, F. Lakrad

{"title":"Nonlinear Biodynamic Models of the Hand-arm System and Parameters Identification using the Vibration Transmissibility or the Driving-point Mechanical Impedance","authors":"Nahid Hida, Mohamed Abid, F. Lakrad","doi":"10.22055/JACM.2021.35508.2672","DOIUrl":"https://doi.org/10.22055/JACM.2021.35508.2672","url":null,"abstract":"This study aims at deriving nonlinear expressions of the transmissibility and the driving-point mechanical impedance (DPMI) of two nonlinear biodynamic hand-arm models having active restoring and dissipative parameters. It aims also in computing explicitly the non-directly measurable stiffness and damping coefficients of the human hand-arm system (HAS). Multivariate Pade approximants are used to express the dependence of the HAS mechanical properties on various influencing factors. The harmonic balance method is used to derive analytical expressions of the transmissibility and the DPMI. Then, the models parameters are identified by minimizing constrained error functions between the theoretical DPMI or transmissibility and the measured data. The developed workflow is applied to three experimental data sets of Z-direction vibrations where the excitation frequency and/or the grip force are varied. Using the ISO-10068 (2012) limit DPMI values versus the excitation frequency, we derived upper and lower limits of the overall stiffness coefficient and damping ratio for the human HAS. Furthermore, the model reproduces with high accuracy experimental measurements of the transmissibility, the DPMI and the vibration power absorption.","PeriodicalId":37801,"journal":{"name":"Applied and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47757701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Thermoelastic Memory-dependent Responses to an Infinite Medium with a Cylindrical Hole and Temperature-dependent Properties 具有圆柱孔的无限介质的热弹性记忆响应和温度相关性质

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2021.36048.2784

E. Awwad, A. Abouelregal, A. Hassan

引用次数: 5

Impacts of Volume of Carbon Nanotubes on Bending for Carbon-Kevlar Hybrid Fabrics 碳纳米管体积对碳-芳纶混杂织物弯曲性能的影响

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2020.35554.2682

Elias Randjbaran, D. L. Majid, R. Zahari, M. Sultan, N. Mazlan

引用次数: 7

The Rank Upgrading Technique for a Harmonic Restoring Force of Nonlinear Oscillators 非线性振荡器谐波恢复力的秩升级技术

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2020.35454.2660

Y. El‐Dib, R. T. Matoog

引用次数: 17

Applicability Evidence of Constructal Design in Structural Engineering: Case Study of Biaxial Elasto-Plastic Buckling of Square Steel Plates with Elliptical Cutout 结构设计在结构工程中的适用性证据——以椭圆开口方钢板双轴弹塑性屈曲为例

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2021.35385.2647

T. D. Silveira, V. Pinto, J. P. S. Neufeld, A. Pavlović, L. Rocha, E. D. Santos, L. Isoldi

引用次数: 7

In-Plane Shear-Axial Strain Coupling Formulation for Shear-Deformable Composite Thin-Walled Beams 剪切-变形复合薄壁梁的面内剪切-轴向应变耦合公式

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2020.35066.2556

H. Elizalde, Diego Cárdenas, A. Delgado-Gutiérrez, O. Probst

{"title":"In-Plane Shear-Axial Strain Coupling Formulation for Shear-Deformable Composite Thin-Walled Beams","authors":"H. Elizalde, Diego Cárdenas, A. Delgado-Gutiérrez, O. Probst","doi":"10.22055/JACM.2020.35066.2556","DOIUrl":"https://doi.org/10.22055/JACM.2020.35066.2556","url":null,"abstract":"This paper presents an improved description of the in-plane strain coupling in Librescu-type shear-deformable composite thin-walled beams (CTWB). Based on existing descriptions for Euler-type CTWB, an analogous formulation for shear-deformable CTWB is here developed by building, via the Mindlin–Reissner theory and an orthotropic constitutive law of the shell wall, an alternate equation for the in-plane shear force which effectively couples the axial and shear in-plane strains. It is observed that this strain coupling formulation includes some of the transversal (out-of-plane) shear strain terms, thus also functioning as a path for transferring transversal shear energy to the in-plane strain field and therefore improving shear-deformability. The performance of the new CTWB model is compared against that of previously available CWTB (i.e. Euler-type with strain coupling and Timoshenko-type without strain coupling) for several aspect ratios, fibre-orientations and laminate types. Error measures are calculated by comparing several relevant stiffness coefficients and displacement shapes to reference results provided by corresponding 3D shell-based ANSYS finite-element models. Results indicate that for cases involving significant shear energy (i.e. short aspect ratios) and/or in-plane shear-axial strain coupling (i.e. off-axis or asymmetric/unbalanced laminates), the new CTWB model proposed in this work can attain an accuracy level comparable to that associated to more sophisticated models, two to three orders of magnitude larger, at a fraction of the computational cost.","PeriodicalId":37801,"journal":{"name":"Applied and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68418857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Analysis of the Deformation of a Shearing Machine Tool under Excessive Blade Clearance 刀片间隙过大时剪切机床变形的数值分析

Applied and Computational Mechanics Pub Date : 2021-04-01 DOI: 10.22055/JACM.2020.35301.2623

Fotios Bantes, G. Vosniakos, P. Kostazos

引用次数: 1