A mathematical model to design pillar-shaped bioinspired mechanical sensors DOI Creative Commons
A. Solis, Luis Alonso

Mechanics of Materials, Год журнала: 2024, Номер 195, С. 105031 - 105031

Опубликована: Май 13, 2024

Soft robots and sensor/actuator systems are often based on bioinspired designs to leverage nature patterns. Specifically, pillar-shaped sensors useful for human activity monitoring, locomotion of soft or treatment cardiovascular diseases. If electric magnetic particles added in the manufacturing process, these structures can be tuned through remote fields attain a specific mechanical behaviour. This promising technique has direct applications high-impact such as bioengineering, sensor designing. Filament-shaped smart send electrical signals when subjected an external stimulus provide response controllable field is applied broadening their possibilities action. As efficient design highly challenging, developing technical tool with low computational cost help throughout layout processes (i.e. inverse engineering) pivotal. Theoretical modelling kinematics dynamics wire-shaped structure under action first step methodology designing efficient, understandable time-consuming way. The event deformation after receiving before sending corresponding output signal key conceptualisation process sensors. work intends give insight into deformable component without addressing coupling its causes and, hence, general framework serve basis multiphysics formulations design.

Язык: Английский

Recent Advances in the Additive Manufacturing of Stimuli‐Responsive Soft Polymers DOI Creative Commons
Ali Tariq, Zia Ullah Arif, Muhammad Yasir Khalid

и другие.

Advanced Engineering Materials, Год журнала: 2023, Номер 25(21)

Опубликована: Авг. 29, 2023

Stimuli‐responsive polymers (SRPs) are special types of soft materials, which have been extensively used for developing flexible actuators, robots, wearable devices, sensors, self‐expanding structures, and biomedical thanks to their ability change shapes functional properties in response external stimuli including light, humidity, heat, pH, electric field, solvent, magnetic field or combinations two more these stimuli. In recent years, additive manufacturing (AM) aka 3D printing technology SRPs, also known as 4D printing, has gained phenomenal attention different engineering fields, its unique develop complex, personalized, innovative undergo twisting, elongating, swelling, rolling, shrinking, bending, spiraling, other complex morphological transformations. Herein, an effort made provide insightful information about the AM techniques, type applications including, but not limited tissue engineering, bionics, construction, smart textiles. This article incorporates current challenges prospects, hoping basis utilization this fields. It is expected that amalgamation with SRPs would unparalleled advantages arenas.

Язык: Английский

Процитировано

82
The Modeling of Magnetorheological Elastomers: A State‐of‐the‐Art Review DOI Creative Commons
Amin Saber, Ramin Sedaghati

Advanced Engineering Materials, Год журнала: 2023, Номер 25(16)

Опубликована: Май 11, 2023

The magnetorheological elastomers (MREs) are novel multifunctional materials wherein their viscoelastic properties can be varied instantly under an application of applied magnetic field. Due to field‐dependent stiffness and damping properties, MREs widely used in the development design MRE‐based adaptive vibration isolators absorbers also biomedical engineering. Moreover, due inherent magnetostriction effect have enormous potential for soft actuators. dynamic behavior is affected by various material parameters (e.g., matrix particle types, concentration, additives) as well mechanical loading frequency, amplitude, temperature, flux density). Understanding predicting on response paramount importance structures systems. This review paper mainly aims provide a comprehensive study constitutive models predict nonlinear magnetomechanical MREs. Particular emphasis paid physics‐based including continuum‐ microstructure‐based models. phenomenological describing magnetoviscoelastic temperature such properly addressed.

Язык: Английский

Процитировано

30
Influence of magnetic boundary conditions on the quantitative modelling of magnetorheological elastomers DOI Creative Commons
Miguel Ángel Moreno, Kostas Danas, Daniel Garcia‐Gonzalez

и другие.

Mechanics of Materials, Год журнала: 2023, Номер 184, С. 104742 - 104742

Опубликована: Июль 6, 2023

The complex magneto-mechanical coupling that governs the material response of magnetorheological elastomers (MREs) requires computational tools to assist design process. Computational models are usually based on finite element frameworks often simplify and idealise magnetic source associated boundary conditions (BCs). However, these simplifications may lead important disagreement between actual behaviour modelled one, even at qualitative level. In this work, we provide a comprehensive study influence BCs demonstrate importance considering them in overall material-structure modelling strategy. To end, implement framework model soft- hard-magnetic MREs under fields generated by an idealised far-field uniform source, permanent magnet, coil system, electromagnet with two iron poles. results unveil remarkable heterogeneities computed local magnetostriction depending setup used. A detailed discussion structural contributions provides robust, rigorous more importantly necessary route for future works.

Язык: Английский

Процитировано

26
Tunable anti-plane wave bandgaps in 2D periodic hard-magnetic soft composites DOI

Srikant Padmanabhan,

Zeeshan Alam,

Atul Kumar Sharma

и другие.

International Journal of Mechanical Sciences, Год журнала: 2023, Номер 261, С. 108686 - 108686

Опубликована: Авг. 23, 2023

Язык: Английский

Процитировано

24
Configurational force method enables fracture assessment in soft materials DOI Creative Commons
Miguel Ángel Moreno, Paul Steinmann

Journal of the Mechanics and Physics of Solids, Год журнала: 2024, Номер 186, С. 105602 - 105602

Опубликована: Март 12, 2024

Configurational mechanics offers a framework for quantifying the tendency of defects to alter material configuration. When applied fracture mechanics, configurational forces can be used quantify propensity cracks propagate. An alternative, well-established approach involves analytical solutions crack tip displacement fields. However, these typically apply limited range constitutive behaviors and oftentimes linear small strain regime. The ease calculating in numerical Finite Element implementation, along with their applicability soft at large strains, motivates study performance as standalone framework. In contrast majority works that remain theoretical numerical, our includes robust experimental finite strains. We report tensile experiments on elastomer pre-cuts ante initiation. first attempt J-integral via forces, we explore elastic Pacman-shaped domains reproduce vicinity. Then, implement entire boundary value problem three-dimensional simulations replicate empirical deformation samples. Subsequently, results are benchmarked against estimations obtained through bespoke solution. With successful validation force method aim establish pipeline calculation manner circumventing need close-form solutions.

Язык: Английский

Процитировано

12
A micromagnetic-mechanically coupled phase-field model for fracture and fatigue of magnetostrictive alloys DOI

Shen Sun,

Qihua Gong, Yong Ni

и другие.

Journal of the Mechanics and Physics of Solids, Год журнала: 2024, Номер 191, С. 105767 - 105767

Опубликована: Июль 6, 2024

Язык: Английский

Процитировано

11
Hard magnetics and soft materials—a synergy DOI Creative Commons
P. Ramesh Narayanan, R. Pramanik, A. Arockiarajan

и другие.

Smart Materials and Structures, Год журнала: 2024, Номер 33(4), С. 043001 - 043001

Опубликована: Фев. 21, 2024

Abstract Hard-magnetic soft materials (hMSMs) are smart composites that consist of a mechanically polymer matrix impregnated with hard magnetic filler particles. This dual-phase composition renders them exceptional magneto-mechanical properties allow to undergo large reversible deformations under the influence external fields. Over last decade, hMSMs have found extensive applications in robotics, adaptive structures, and biomedical devices. However, despite their widespread utility, they pose considerable challenges fabrication characterization owing multi-phase nature, miniature length scales, nonlinear material behavior. Although noteworthy attempts been made understand coupled rudimentary concepts inter-phase interactions give rise mechanical nonlinearity remain insufficiently understood, this impedes further advancements. holistic review addresses these standalone bridges gaps by providing thorough examination myriad techniques, applications, experimental, modeling approaches. Specifically, presents wide spectrum ranging from traditional molding cutting-edge four-dimensional printing, unbounded prospects diverse fields research. The covers various approaches, including continuum frameworks encompassing phenomenological homogenization models, as well microstructural models. Additionally, it emerging techniques like machine learning-based context hMSMs. Finally, expansive landscape promising systems is provided for better understanding prospective

Язык: Английский

Процитировано

8
A phase field formulation for modelling fracture of nearly incompressible hyperelastic materials DOI Creative Commons
Deepak George, Shabnam Konica, Ian Masters

и другие.

Computer Methods in Applied Mechanics and Engineering, Год журнала: 2025, Номер 436, С. 117696 - 117696

Опубликована: Янв. 4, 2025

Язык: Английский

Процитировано

1
Failure analysis of adhesively bonded joints using a modulatory damage model DOI
Ata Khabaz‐Aghdam,

S.A. Dizaji,

Naghdali Choupani

и другие.

Engineering Failure Analysis, Год журнала: 2024, Номер 163, С. 108602 - 108602

Опубликована: Июль 4, 2024

Язык: Английский

Процитировано

6
Electro-mechanical actuation modulates fracture performance of soft dielectric elastomers DOI Creative Commons
Miguel Ángel Moreno, Markus Mehnert, Paul Steinmann

и другие.

International Journal of Engineering Science, Год журнала: 2023, Номер 195, С. 104008 - 104008

Опубликована: Дек. 20, 2023

Soft dielectric elastomers respond to electric stimuli by undergoing large deformations and changes in their material properties. The actuation with deformable electrodes attached the originates Coulomb dipole forces that convert field into a mechanical response. Applications at can entail crack onset propagation. Within this context, response of soft polymer an applied may serve influence fracture behavior such materials, potentially enhancing it. Here we explore performance ultra-soft elastomer. To do so, conduct tensile tests while applying electrical on samples pre-cuts. Additionally, examine elastomer filled piezoelectric BaTiO3 particles ameliorate beyond limits observed unfilled material. In conjunction experiments, employ bespoke phase-field model analyze stress triaxiality near tip. results indicate induces beneficial tip blunting de-concentration, toughness up 125 % delaying Our work provides route for applications require improved properties or, more broadly, modulation behavior.

Язык: Английский

Процитировано

12