Mechanics of Time-Dependent Materials最新文献_第8页

Constitutive modeling of viscoelastic-plastic strain characteristics and damage in southern China red sandstone under chemical exposure 化学暴露下中国南方红砂岩的粘弹-塑性应变特征和损伤的构造模型

IF 2.1 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-06-10 DOI: 10.1007/s11043-024-09708-1

Shuguang Zhang, Shutian Zhao, Mingzhuo Fan, Ye Sun, Wenbo Liu, Wenhao Qi

{"title":"Constitutive modeling of viscoelastic-plastic strain characteristics and damage in southern China red sandstone under chemical exposure","authors":"Shuguang Zhang, Shutian Zhao, Mingzhuo Fan, Ye Sun, Wenbo Liu, Wenhao Qi","doi":"10.1007/s11043-024-09708-1","DOIUrl":"10.1007/s11043-024-09708-1","url":null,"abstract":"<div><p>In this investigation, we conducted graded creep cyclic loading and unloading testing to measure the viscoelastic-plastic rheological properties of red sandstone from Southern China under acidic conditions. We utilized an enhanced method to divide the strain into four components: instantaneous elastic strain, instantaneous plastic strain, viscoelastic strain, and viscoplastic strain. We analyzed the strain characteristics of the corroded samples in relation to the deformation modulus. Employing nonlinear rheological theory, we derived the constitutive equations for creep damage in rock under both one-dimensional and three-dimensional stress states. Our findings indicate that acid corrosion has a minimal impact on the resistance to elastic deformation in red sandstone, with the elastic deformation modulus remaining relatively unchanged at comparable stress levels. The relationships between instantaneous elastic strain and viscoelastic strain with deviatoric stress are nearly linear. Increased acidity enhances the plastic deformation of the sandstone, marked by a progressive increase in the instantaneous plastic modulus and a decrease in instantaneous plastic strain increments with successive loading and unloading cycles. The viscoplastic modulus decreases as stress levels rise, leading to increased viscoplastic strain. Incorporating a chemical damage variable that accounts for plastic deformation, we established a creep damage constitutive equation that separates viscoelastic-plastic strains. The validity and accuracy of our proposed model are confirmed through comparison with the traditional Nishihara model.</p></div>","PeriodicalId":698,"journal":{"name":"Mechanics of Time-Dependent Materials","volume":"28 4","pages":"3005 - 3028"},"PeriodicalIF":2.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141361777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative characterization of the viscoelastic properties of additive manufacturing polymers 增材制造聚合物粘弹性能的比较表征

IF 2.1 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-06-07 DOI: 10.1007/s11043-024-09710-7

Anil Singh, Mia Chen, George Youssef

{"title":"Comparative characterization of the viscoelastic properties of additive manufacturing polymers","authors":"Anil Singh, Mia Chen, George Youssef","doi":"10.1007/s11043-024-09710-7","DOIUrl":"10.1007/s11043-024-09710-7","url":null,"abstract":"<div><p>The recent availability of a wide range of additively manufactured materials has facilitated the translation from prototype-limited to application-ready 3D printed components. As such, additively manufactured materials deployed in dynamic environments require extensive characterization to elucidate and optimize performance. This research evaluates the dynamic response of fused filament fabrication and vat photopolymerization printed polymers as a function of temperature. Dynamic mechanical analysis is used to extract the viscoelastic properties of several generations of samples exhibiting a range of thermomechanical behavior, highlighting the stiffness and damping characteristics. A modified stiffness–temperature model supports the experimental characterization and provides additional insight concerning the molecular motion occurring over each thermal transition. The insights from the analysis were collated into a case study that leverages their dynamic characteristics in a multimaterial application. The outcomes from this research assimilate a framework that defines the temperature operating range and broadens the design envelope for these additive manufacturing materials.</p></div>","PeriodicalId":698,"journal":{"name":"Mechanics of Time-Dependent Materials","volume":"28 4","pages":"3029 - 3047"},"PeriodicalIF":2.1,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141374639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Memory response of porous cylindrical panels with voids in the framework of three-phase-lag theory 三相滞后理论框架下带有空隙的多孔圆柱形面板的记忆响应

IF 2.1 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-06-07 DOI: 10.1007/s11043-024-09717-0

Kirti K. Jojare, Kishor R. Gaikwad

{"title":"Memory response of porous cylindrical panels with voids in the framework of three-phase-lag theory","authors":"Kirti K. Jojare, Kishor R. Gaikwad","doi":"10.1007/s11043-024-09717-0","DOIUrl":"10.1007/s11043-024-09717-0","url":null,"abstract":"<div><p>This article explores the memory effects of a three-dimensional cylindrical panel with a void using the Three-Phase-Lag (3PL) theory. The study derives the governing equations for displacement, temperature, void volume fraction, and stress. These equations are solved using Fourier–Laplace transforms and eigenvalue methods. To obtain numerical solutions and generate graphical representations, the transformed equations were inverted. Material properties from Gauthier’s work were used, and graphical results were produced using Mathematica software. The influence of memory response is then demonstrated by comparing kernel functions and time delay parameters within the 3PL porous cylindrical panel. The results show significant changes in the behavior of the panel. The validity of the proposed model is confirmed by comparing its predictions with previously published findings. The authors believe these results can provide valuable insights for various engineering applications involving porous materials. The model allows for accurate prediction of material behavior under different loading conditions, leading to a deeper understanding of various kernel phenomena.</p></div>","PeriodicalId":698,"journal":{"name":"Mechanics of Time-Dependent Materials","volume":"28 3","pages":"709 - 736"},"PeriodicalIF":2.1,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141371344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of strain rate on nanoparticle debonding in polymer nanocomposites 应变率对聚合物纳米复合材料中纳米颗粒脱粘的影响

IF 2.1 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-06-05 DOI: 10.1007/s11043-024-09713-4

Afshin Zeinedini

{"title":"Influence of strain rate on nanoparticle debonding in polymer nanocomposites","authors":"Afshin Zeinedini","doi":"10.1007/s11043-024-09713-4","DOIUrl":"10.1007/s11043-024-09713-4","url":null,"abstract":"<div><p>This paper attempts to evaluate the influence of strain rate on the debonding stress of the spherical nanoparticles using a closed form solution. A coherent model to correlate a relationship between the debonding stress of polymer-based nanocomposites and the strain rate was developed. A representative volume element (RVE) containing a spherical nanoparticle, an interphase material, and a pure polymer phase was regarded. A relationship between the debonding stress and the applied strain rate, the material, and geometrical properties of the RVE’s constituents was correlated. In addition to the strain rate, the role of some effective variables such as nanoparticles size, interphase thickness, and interphase stiffness on the debonding stress were investigated. To evaluate the model, three case studies based on the experimental studies performed on silica nanoparticles/epoxy, CaCO<sub>3</sub> nanoparticles/high-density polyethylene (HDPE), silica nanoparticles/photopolymer nanocomposites were conducted. For the nano-silica/epoxy system, the results revealed that by enhancing the strain rate, the normalized debonding stress decreases. Additionally, under a certain strain rate, the normalized debonding stress enhances as much as the stiffness of interphase material increases and the nanoparticle size decreases. In the case of CaCO<sub>3</sub>/HDPE nanocomposites, it was observed that by increasing the size of nanoparticles, the normalized debonding stress was reduced significantly. For the nano-silica/photopolymer nanocomposites, it was found that the dependence of the normalized debonding stress on the strain rate is more remarkable for the thicker interphase region. The proposed model can be used to predict the mechanical properties of nanoparticles/polymer systems under high strain rate conditions.</p></div>","PeriodicalId":698,"journal":{"name":"Mechanics of Time-Dependent Materials","volume":"28 4","pages":"3069 - 3091"},"PeriodicalIF":2.1,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141385686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristics of nonlocal fractional magneto-thermoviscoelastic waves in a micro-rod heated by a moving heat source 被移动热源加热的微棒中的非局部分数磁热动弹性波的特征

IF 2.1 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-06-04 DOI: 10.1007/s11043-024-09701-8

A. Alansari

引用次数: 0

Effect of pile-head breaking methods on the triaxial creep behavior of a concrete: a constitutive modeling approach 桩头破除方法对混凝土三轴徐变行为的影响：构成模型方法

IF 2.1 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-06-04 DOI: 10.1007/s11043-024-09690-8

Haikuan Wu, Hangqi Zhang, Shun Kang, Xin Zhang, Yongyi Yang, Xudong Yang, Rongxi Shen, Baoxian Liu, Xun Yuan, Zhile Shu

{"title":"Effect of pile-head breaking methods on the triaxial creep behavior of a concrete: a constitutive modeling approach","authors":"Haikuan Wu, Hangqi Zhang, Shun Kang, Xin Zhang, Yongyi Yang, Xudong Yang, Rongxi Shen, Baoxian Liu, Xun Yuan, Zhile Shu","doi":"10.1007/s11043-024-09690-8","DOIUrl":"10.1007/s11043-024-09690-8","url":null,"abstract":"<div><p>This study investigated the long-term creep behavior of concrete in drilled shafts using conventional and soft-cutting head techniques, focusing on their propensity for internal defects and crack propagation under sustained loading. Triaxial creep tests were performed on concrete specimens subjected to multistage loading to examine the axial- and radial-creep responses associated with each cutting-head method. The findings reveal that concrete prepared with conventional cutting heads exhibits a higher susceptibility to creep failure, attributed to an increased presence of internal defects. In contrast, specimens using soft-cutting heads demonstrated reduced axial- and radial-creep deformations. Concrete cured in laboratory conditions and those cut with soft-cutting heads at various elevations predominantly experienced shearing failures, whereas specimens with soft-cutting heads positioned at higher elevations were more prone to radial tension-shear failures. Considering the Burgers model and fractional-order theory, we introduce a one-dimensional nonlinear damage creep model, alongside a more comprehensive three-dimensional damage creep model. Validation of these models confirms their effectiveness in describing the creep behavior of concrete under different cutting-head disturbances. Importantly, our analysis suggests that the role of soft-cutting head methods on the integrity of cast-in-place concrete piles is comparatively minimal. This insight underscores the potential for optimizing pile-head breaking techniques to mitigate creep-related failures in concrete structures.</p></div>","PeriodicalId":698,"journal":{"name":"Mechanics of Time-Dependent Materials","volume":"28 4","pages":"2793 - 2817"},"PeriodicalIF":2.1,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141258850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rheological analysis of blended vs. recovered asphalt binders in rejuvenated mixtures with high reclaimed asphalt pavement 高再生沥青路面再生混合物中混合沥青粘结剂与回收沥青粘结剂的流变分析

IF 2.1 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-06-03 DOI: 10.1007/s11043-024-09711-6

Reza Imaninasab, Luis Loria-Salazar, Alan Carter

{"title":"Rheological analysis of blended vs. recovered asphalt binders in rejuvenated mixtures with high reclaimed asphalt pavement","authors":"Reza Imaninasab, Luis Loria-Salazar, Alan Carter","doi":"10.1007/s11043-024-09711-6","DOIUrl":"10.1007/s11043-024-09711-6","url":null,"abstract":"<div><p>Higher reclaimed asphalt pavement (RAP) in asphalt mixtures requires efficient rejuvenation. The efficiency of the rejuvenation can be evaluated by studying the rejuvenator, new and old binder blend. The blend must represent the binder blend inside the asphalt mixture to reflect reality. Extracting and recovering the binder of the rejuvenated asphalt mixtures containing RAP is the best practice to obtain the binder blend inside the asphalt mixture. However, extraction and recovery is not a common practice to study rejuvenation efficiency since it is time-consuming and energy-demanding with exposure to hazardous chemicals. Instead, blending rejuvenator, new binder and the extracted and recovered (E&R) binder from RAP limits the extraction and recovery to the RAP and minimizes efforts for studying rejuvenation efficiency. This study aims to find the blending conditions under which the blend of the rejuvenator, new and RAP binder represents the E&R binder from asphalt mixture concerning rheological performance and behavior properties. The rheological properties of three binder blends prepared under intense, moderate, and low blending conditions were compared with those of the E&R binder. Performance grade (PG), rutting potential (multiple stress creep and recovery test), fatigue resistance (linear amplitude sweep test) and behavioral characteristics (linearity and complex modulus tests) are the rheological properties of this study. It was found that intense and moderate blending conditions are good representatives of the E&R binder with regard to PG and PG+ designation. In addition, intense, moderate, and low blending conditions can be a surrogate for the PAV-aged E&R binder. It can be claimed that any intensity of blending conditions between intense and moderate lead to binder specimen that is almost identical to E&R binder with respect to rutting potential and characterization.</p></div>","PeriodicalId":698,"journal":{"name":"Mechanics of Time-Dependent Materials","volume":"28 4","pages":"3049 - 3068"},"PeriodicalIF":2.1,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141258900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Calculation of residual stress in ultrasonic vibration assisted grinding considering thermal-mechanical coupling: a numerical-analytical hybrid prediction approach 考虑热机械耦合的超声波振动辅助磨削残余应力计算：数值-分析混合预测方法

IF 2.1 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-05-31 DOI: 10.1007/s11043-024-09707-2

Shijie Ye, Jun Wen, Jinyuan Tang, Weihua Zhou, Yuansheng Zhou

{"title":"Calculation of residual stress in ultrasonic vibration assisted grinding considering thermal-mechanical coupling: a numerical-analytical hybrid prediction approach","authors":"Shijie Ye, Jun Wen, Jinyuan Tang, Weihua Zhou, Yuansheng Zhou","doi":"10.1007/s11043-024-09707-2","DOIUrl":"10.1007/s11043-024-09707-2","url":null,"abstract":"<div><p>Ultrasonic vibration-assisted grinding (UVAG) enhances surface integrity in machined parts, especially in achieving greater compressive residual stress. Typically, the calculation of residual stresses in UVAG relies on generic finite element software that is not optimized for this purpose, suffering from cumbersome modeling and inefficient calculations. This paper introduces a numerical-analytical hybrid model tailored to predict residual stresses in UVAG. The model independently calculates mechanical and thermal stress fields using contact mechanics and finite difference methods. It employs Hertz’s contact theory and Timoshenko’s thermoelastic theory to establish a correlation between mechanical and thermal loads and the internal stresses in the workpiece. The residual stress field is then determined by considering the thermal-mechanical coupling effects inherent in UVAG. Experiments conducted on 12Cr2Ni4A alloy steel validate the model, with a maximum deviation of 10.5% between predicted and measured residual stresses. Further analysis shows that the presented method has a significant computational efficiency advantage over the simulation method that uses generic finite element software. The work confirms the accuracy and efficiency of the proposed model, offering a novel approach for predicting residual stress in UVAG.</p></div>","PeriodicalId":698,"journal":{"name":"Mechanics of Time-Dependent Materials","volume":"28 4","pages":"2981 - 3003"},"PeriodicalIF":2.1,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141188250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermo-mechanical interaction in two-temperature time-differential dual-phase-lagging materials under gravitational field influence 引力场影响下双温时差双相滞后材料中的热机械相互作用

IF 2.5 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-05-31 DOI: 10.1007/s11043-024-09712-5

Nantu Sarkar

引用次数: 0

Stress-induced diffusion in viscoelastic electrode particles of Li-ion batteries: a comparative analysis using chemo-viscoelastic finite element models 锂离子电池粘弹性电极颗粒中的应力诱导扩散：使用化学-粘弹性有限元模型进行比较分析

IF 2.1 4区材料科学

Mechanics of Time-Dependent Materials Pub Date : 2024-05-30 DOI: 10.1007/s11043-024-09706-3

Sanjana Talukdar, Narasimhan Swaminathan, Parag Ravindran

{"title":"Stress-induced diffusion in viscoelastic electrode particles of Li-ion batteries: a comparative analysis using chemo-viscoelastic finite element models","authors":"Sanjana Talukdar, Narasimhan Swaminathan, Parag Ravindran","doi":"10.1007/s11043-024-09706-3","DOIUrl":"10.1007/s11043-024-09706-3","url":null,"abstract":"<div><p>The role of stress-induced diffusion (SID) in influencing the mechanical response and diffusion of Li in viscoelastic electrode particles of Lithium-ion batteries is studied. A two-way coupled chemo-viscoelastic model is developed for this purpose, and the governing equations are solved via the finite element method using deal. ii, an open source C++ library. Comparative studies between one-way and two-way coupled chemo-viscoelastic models reveal that concentration and stress are initially larger for the two-way coupled model, but later they reduce in magnitude compared to the one-way coupled model. The level of filling at which the switch is observed decreases with increase in particle size. The switch occurs due to change in the sign of gradient of hydrostatic stress for a viscoelastic material from negative to positive and its concurrent effect on diffusive flux as a result of two-way coupling between stress and diffusion. Further, from comparative studies between two-way coupled elastic and viscoelastic models, it is observed that speed of filling is greater for an elastic particle in comparison to a viscoelastic particle, and the gap increases when the particle size is smaller. In addition, lower values of stresses are observed for viscoelastic electrode particles, and the difference between maximum stress generated increases with increase in particle size. Thus, the time scales associated with viscoelastic constitutive response and diffusion process alters the SID effects and could be tuned while designing electrodes to mitigate slowing down of diffusion and fracture.</p></div>","PeriodicalId":698,"journal":{"name":"Mechanics of Time-Dependent Materials","volume":"28 3","pages":"1133 - 1164"},"PeriodicalIF":2.1,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141188664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0