Archive of Applied Mechanics最新文献

Correction to: Bending analysis of functionally graded sandwich beams with general boundary conditions using a modified Fourier series method 修正:用改进傅立叶级数法分析具有一般边界条件的功能梯度夹层梁的弯曲

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-08-09 DOI: 10.1007/s00419-023-02483-4

Yu Pu, Shuming Jia, Yang Luo, Shuanhu Shi

引用次数: 0

Correction to: BIEM via graded piezoelectric half-plane Green’s function for wave scattering by curvilinear cracks 曲线裂纹波散射的梯度压电半平面格林函数对BIEM的修正

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-07-28 DOI: 10.1007/s00419-023-02478-1

Tsviatko Rangelov, Petia Dineva

引用次数: 0

Vibration characteristics analysis of anisotropic metal rubber medium-thick cylindrical shells 各向异性金属橡胶中厚圆柱壳振动特性分析

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-07-27 DOI: 10.1007/s00419-023-02453-w

Yan Bai, He Li

引用次数: 0

Mechanical response model with core loss of microcapsules under uniaxial compression and its parameters analysis 考虑岩心损失的微胶囊单轴压缩力学响应模型及参数分析

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-07-16 DOI: 10.1007/s00419-023-02457-6

Hua Huang, Huiyang Huang, Ruotong Wang, Yaqiong Fan, Runlan Guo

{"title":"Mechanical response model with core loss of microcapsules under uniaxial compression and its parameters analysis","authors":"Hua Huang, Huiyang Huang, Ruotong Wang, Yaqiong Fan, Runlan Guo","doi":"10.1007/s00419-023-02457-6","DOIUrl":"10.1007/s00419-023-02457-6","url":null,"abstract":"<div><p>Microcapsules are widely used in various fields. However, there is no way to predict the mechanical response of microcapsules accurately. To address this problem, the improved Reissner theory and the Tatara theory are employed to establish the mechanical response models of the capsule shell and the capsule core, respectively. Moreover, the capsule core loss, which is always neglected in prior study, is obtained through the mass ratio of the capsule core. Therefore, a universal and effective mechanical response model with microcapsule characteristics is developed. In addition, a set of orthogonal tests are designed based on the mechanical response model to analyze the contributions of the microcapsule components to the mechanical response. The results show that: (1) the proposed microcapsule mechanical response model has prediction errors of less than 30% for various types of microcapsule mechanical response results, and the gray correlation degree of the prediction trend is above 0.6. Compared to traditional models that can only predict trends, with an error rate of 400%, the proposed model has an improvement; (2) the loss of core is inevitable, and the three microcapsules in the study all have a core loss volume of 10–30%; (3) when the strain is large, the mechanical response of overall microcapsules is determined by the size and core of microcapsules. The results provide a theoretical basis for designing the microcapsules.\u0000</p></div>","PeriodicalId":477,"journal":{"name":"Archive of Applied Mechanics","volume":"93 9","pages":"3625 - 3636"},"PeriodicalIF":2.8,"publicationDate":"2023-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4650995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bending analysis of functionally graded sandwich beams with general boundary conditions using a modified Fourier series method 用改进傅立叶级数法分析具有一般边界条件的功能梯度夹层梁的弯曲

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-07-09 DOI: 10.1007/s00419-023-02474-5

Yu Pu, Shuming Jia, Yang Luo, Shuanhu Shi

{"title":"Bending analysis of functionally graded sandwich beams with general boundary conditions using a modified Fourier series method","authors":"Yu Pu, Shuming Jia, Yang Luo, Shuanhu Shi","doi":"10.1007/s00419-023-02474-5","DOIUrl":"10.1007/s00419-023-02474-5","url":null,"abstract":"<div><p>A modified Fourier method and six-parameter constrained model are employed to investigate the static bending characteristics of functionally graded sandwich beams under classical and non-classical boundary conditions based on the first-order shear deformation theory. Three types of sandwich beams including isotropic hardcore, functionally graded core, and isotropic softcore are considered. The effective material properties of functionally graded materials are assumed to vary according to power law distribution of volume fraction of constituents by Voigt model. The governing equations and boundary conditions are derived from the principle of minimum potential energy and are solved using the modified Fourier series method which includes the standard Fourier cosine series together with two auxiliary polynomials terms. The high convergence rate, availability and accuracy of the formulation are verified by comparisons with results of other methods. Moreover, numerous new bending results for functionally graded sandwich beams with general boundary conditions are presented. The significant effects of various boundary conditions, different types of sandwich beams, power-law index, span-to-height ratio and skin–core-skin thickness ratio on the displacements, axial stresses, and shear stresses of the sandwich beams with symmetrical and unsymmetrical forms are also investigated.</p></div>","PeriodicalId":477,"journal":{"name":"Archive of Applied Mechanics","volume":"93 9","pages":"3741 - 3760"},"PeriodicalIF":2.8,"publicationDate":"2023-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4389935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to: Vibroacoustic performance of star-shaped honeycomb-core annular cellular structures 修正:星形蜂窝核心环形细胞结构的振动声学性能

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-07-08 DOI: 10.1007/s00419-023-02471-8

Meysam Sheykhi

引用次数: 0

Dynamics of multiple pendulum system under a translating and tilting pivot 平移和倾斜枢轴下的多摆系统动力学

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-07-07 DOI: 10.1007/s00419-023-02473-6

Aditya Bondada, Vishnu G. Nair

引用次数: 1

Galerkin’s method to solve a fractional time-delayed jerk oscillator 伽辽金求解分数阶时滞振荡振荡器的方法

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-06-30 DOI: 10.1007/s00419-023-02455-8

Yusry O. El-Dib, Nasser S. Elgazery, Haifa A. Alyousef

引用次数: 1

A method to accurately define arbitrary algorithmic damping character as viscous damping 一种将任意算法阻尼特性精确定义为粘性阻尼的方法

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-06-28 DOI: 10.1007/s00419-023-02454-9

Dániel Serfőző, Balázs Pere

引用次数: 0

Low-dimensional data-based surrogate model of a continuum-mechanical musculoskeletal system based on non-intrusive model order reduction 基于非侵入式模型阶数约简的连续机械肌肉骨骼系统低维数据代理模型

IF 2.8 3区工程技术

Archive of Applied Mechanics Pub Date : 2023-06-28 DOI: 10.1007/s00419-023-02458-5

Jonas Kneifl, David Rosin, Okan Avci, Oliver Röhrle, Jörg Fehr

{"title":"Low-dimensional data-based surrogate model of a continuum-mechanical musculoskeletal system based on non-intrusive model order reduction","authors":"Jonas Kneifl, David Rosin, Okan Avci, Oliver Röhrle, Jörg Fehr","doi":"10.1007/s00419-023-02458-5","DOIUrl":"10.1007/s00419-023-02458-5","url":null,"abstract":"<div><p>Over the last decades, computer modeling has evolved from a supporting tool for engineering prototype design to an ubiquitous instrument in non-traditional fields such as medical rehabilitation. This area comes with unique challenges, e.g. the complex modeling of soft tissue or the analysis of musculoskeletal systems. Conventional modeling approaches like the finite element (FE) method are computationally costly when dealing with such models, limiting their usability for real-time simulation or deployment on low-end hardware, if the model at hand cannot be simplified without losing its expressiveness. Non-traditional approaches such as surrogate modeling using data-driven model order reduction are used to make complex high-fidelity models more widely available regardless. They often involve a dimensionality reduction step, in which the high-dimensional system state is transformed onto a low-dimensional subspace or manifold, and a regression approach to capture the reduced system behavior. While most publications focus on one dimensionality reduction, such as principal component analysis (PCA) (linear) or autoencoder (nonlinear), we consider and compare PCA, kernel PCA, autoencoders, as well as variational autoencoders for the approximation of a continuum-mechanical system. In detail, we demonstrate the benefits of the surrogate modeling approach on a complex musculoskeletal system of a human upper-arm with severe nonlinearities and physiological geometry. We consider both, the model’s deformation and the internal stress as the two main quantities of interest in a FE context. By doing so we are able to create computationally low-cost surrogate models which capture the system behavior with high approximation quality and fast evaluations.</p></div>","PeriodicalId":477,"journal":{"name":"Archive of Applied Mechanics","volume":"93 9","pages":"3637 - 3663"},"PeriodicalIF":2.8,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00419-023-02458-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5092001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3