Thermomechanical analysis of hyperelastic thick-walled cylindrical pressure vessels, analytical solutions and FEM

Almasi, Akbar; Baghani, Mostafa; Moallemi, Ali

doi:10.1016/j.ijmecsci.2017.06.033

Cited by 26 publications

(10 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The variation trends of all the three principal stresses are parabolic. The findings here agree with the previous study conducted by Almasi et al (2017).…”

Section: Behavior Of An Eme Rotating Cylindrical Tube Actuatorsupporting

confidence: 94%

“…These parameters may be evaluated by fitting the stress response of an electro-magneto-active polymer test data (Kumar and Sarangi, 2018, 2019a, 2019b). On employing the conservation of linear momentum principle in radial direction, the equilibrium equation (Almasi et al, 2017; Chadwick et al, 1977) for the tube actuator of material density ρ with a given rotation ω about the axis of symmetry is given by…”

Section: Theoretical Modelmentioning

confidence: 99%

See 1 more Smart Citation

Modeling and analysis of an electro-magneto-elastic rotating cylindrical tube actuator

Kumar

Yadav

Sarangi

2022

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

This paper presents the static modeling and analysis of a novel cylindrical tube actuator subjected to a rotation about longitudinal axis with an internally applied air pressure under an electromagnetic field. The current tube actuator belongs to a smart actuator category and is made of an electro-magneto-active polymer filled with a particular volume fraction of suitable fillers. A continuum mechanics-based electro-magneto-mechanical model is developed to predict the response of the actuator for a combined pressure and electromagnetic field loading. To validate the same, the model is compared with the outputs of an existing spring roll actuator. Parametric studies are subsequently performed for varying input pressure, electric field, magnetic field, fillers content, and actuator’s rotational speed. The output sensitivity in terms of strain intensity at inner and outer surfaces of the actuator is also checked at different controlling inputs. In addition, various electro-magneto-mechanical instability curves are drawn to examine the critical inflation of the tube actuator. In general, the developed model provides initial steps toward the modern actuator designs for applications where a precise control with high load-carrying capability of the actuator plays a significant role.

show abstract

“…The variation trends of all the three principal stresses are parabolic. The findings here agree with the previous study conducted by Almasi et al (2017).…”

Section: Behavior Of An Eme Rotating Cylindrical Tube Actuatorsupporting

confidence: 94%

Section: Theoretical Modelmentioning

confidence: 99%

Modeling and analysis of an electro-magneto-elastic rotating cylindrical tube actuator

Kumar

Yadav

Sarangi

2022

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

show abstract

“…It is then needed to identify two parameters a and b as the current internal and external radii of the structure. By employing a second-order Runge-Kutta method for Equation (36) and considering corresponding boundary conditions, parameters of p, a and b, the stresses can be determined. This process has been carried out by solving a nonlinear set of algebraic equations.…”

Section: Non-linear Continuum Framework Of Finite Bending Of the Actumentioning

confidence: 99%

“…Due to the viscoelastic properties of these materials, the elastic modulus of dielectric actuators changes during operation [26]. A number of researches have been conducted to model the hyperelastic behavior of both isotropic and anisotropic dielectric materials [16,18,[27][28][29][30][31][32][33][34][35][36][37]. Several hyperelastic models are being considered for representing large deformation behavior of elastomers, such as Neo-Hookean, Mooney-Rivlin, Ogden, Yeoh, and others.…”

Section: Introductionmentioning

confidence: 99%

Multi-Trigger Thermo-Electro-Mechanical Soft Actuators under Large Deformations

et al. 2020

View full text Add to dashboard Cite

Dielectric actuators (DEAs), because of their exceptional properties, are well-suited for soft actuators (or robotics) applications. This article studies a multi-stimuli thermo-dielectric-based soft actuator under large bending conditions. In order to determine the stress components and induced moment (or stretches), a nominal Helmholtz free energy density function with two types of hyperelastic models are employed. Non-linear electro-elasticity theory is adopted to derive the governing equations of the actuator. Total deformation gradient tensor is multiplicatively decomposed into electro-mechanical and thermal parts. The problem is solved using the second-order Runge-Kutta method. Then, the numerical results under thermo-mechanical loadings are validated against the finite element method (FEM) outcomes by developing a user-defined subroutine, UHYPER in a commercial FEM software. The effect of electric field and thermal stimulus are investigated on the mean radius of curvature and stresses distribution of the actuator. Results reveal that in the presence of electric field, the required moment to actuate the actuator is smaller. Finally, due to simplicity and accuracy of the present boundary problem, the proposed thermally-electrically actuator is expected to be used in future studies and 4D printing of artificial thermo-dielectric-based beam muscles.

show abstract

“…Recently, stretchable materials considering the functionality, viability, and biocompatibility have been vastly utilized in biological and industrial applications. In this regard, finite deformation of high stretchable materials, for example, elastomers and hydrogels, are examined in numerous studies under various loadings including bending (Sheikhi et al, 2019;Shojaeifard et al, 2019b), extension-torsion (Valiollahi et al, 2019a(Valiollahi et al, , 2019b, rotating (Anani and Rahimi, 2016), and pressure-vessel (Almasi et al, 2017) to study their capability. In particular, the temperature-responsive hydrogels are being sensitive to a wide range of environmental temperature and undergoing exceedingly large deformation subjected to a slight temperature variation.…”

Section: Introductionmentioning

confidence: 99%

Swelling response of functionally graded temperature-sensitive hydrogel valves: Analytic solution and finite element method

Shojaeifard

Tahmasiyan

Baghani

2019

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

Temperature-sensitive hydrogels are classified as high stretchable materials undertaking large recoverable deformation under thermomechanical loadings. Due to vast applications of these materials in microfluidic valves and stress/deformation discontinuity observed in multi-layered structures, understanding of thermomechanical behavior of functionally graded hydrogels is of great practical interest. In this article, the swelling of these materials is analyzed considering various types of micro-valves including solid cylinder, hollow cylinder, and Jacket-pillar cylinder. Accordingly, analytical solutions are developed for swelling behavior of diverse types of cylinders composed of functionally graded temperature-sensitive hydrogel. The distribution of the cross-link density alters along the radial direction in exponential and linear trends. Besides, finite element analysis is presented to evaluate the proposed analytical solution in different case studies. Then, to account for more realistic environmental conditions, heat transfer equation is also solved along with the mechanical equilibrium equation to propose a novel analytical solution validated by finite element method. Clarifying the micro-valves mechanism and illustrating the capability and accuracy of the analytical method, the effects of material and environmental variables are studied in detail; continuous stress and deformation fields are observed opposed to the multi-layered structures which normally involve stress discontinuity.

show abstract

Thermomechanical analysis of hyperelastic thick-walled cylindrical pressure vessels, analytical solutions and FEM

Cited by 26 publications

References 29 publications

Modeling and analysis of an electro-magneto-elastic rotating cylindrical tube actuator

Modeling and analysis of an electro-magneto-elastic rotating cylindrical tube actuator

Multi-Trigger Thermo-Electro-Mechanical Soft Actuators under Large Deformations

Swelling response of functionally graded temperature-sensitive hydrogel valves: Analytic solution and finite element method

Contact Info

Product

Resources

About