Shear modulus ≈ Shear modulus
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Fracture and adhesion of soft materials: a review Open
Soft materials are materials with a low shear modulus relative to their bulk modulus and where elastic restoring forces are mainly of entropic origin. A sparse population of strong bonds connects molecules together and prevents macroscopic…
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Elastic properties of chiral, anti-chiral, and hierarchical honeycombs: A simple energy-based approach Open
The effects of two geometric refinement strategies widespread in natural structures, chirality and self-similar hierarchy, on the in-plane elastic response of two-dimensional honeycombs were studied systematically. Simple closed-form expre…
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Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy Open
Elastic moduli of a set of equiatomic alloys (CrFeCoNi, CrCoNi, CrFeNi, FeCoNi, MnCoNi, MnFeNi, and CoNi), which are medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy were determined as a function of temperature over the range…
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How to characterize a nonlinear elastic material? A review on nonlinear constitutive parameters in isotropic finite elasticity Open
The mechanical response of a homogeneous isotropic linearly elastic material can be fully characterized by two physical constants, the Young’s modulus and the Poisson’s ratio, which can be derived by simple tensile experiments. Any other l…
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Strain Elastography - How To Do It? Open
Tissue stiffness assessed by palpation for diagnosing pathology has been used for thousands of years. Ultrasound elastography has been developed more recently to display similar information on tissue stiffness as an image. There are two ma…
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Comb and Bottlebrush Polymers with Superior Rheological and Mechanical Properties Open
Comb and bottlebrush polymers present a wide range of rheological and mechanical properties that can be controlled through their molecular characteristics, such as the backbone and side chain lengths as well as the number of branches per m…
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Elastic Softness of Hybrid Lead Halide Perovskites Open
Much recent attention has been devoted towards unraveling the microscopic optoelectronic properties of hybrid organic-inorganic perovskites. Here we investigate by coherent inelastic neutron scattering spectroscopy and Brillouin light scat…
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A family of hyperelastic models for human brain tissue Open
Experiments on brain samples under multiaxial loading have shown that human brain tissue is both extremely soft when compared to other biological tissues and characterized by a peculiar elastic response under combined shear and compression…
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Broadband solid cloak for underwater acoustics Open
Application of transformation theory to underwater acoustics has been a\nchallenging task because highly anisotropic density is unachievable in water. A\npossible strategy is to exploit anisotropic modulus rather than density, while\nhas n…
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Computationally designed lattices with tuned properties for tissue engineering using 3D printing Open
Tissue scaffolds provide structural support while facilitating tissue growth, but are challenging to design due to diverse property trade-offs. Here, a computational approach was developed for modeling scaffolds with lattice structures of …
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Uncoupling shear and uniaxial elastic moduli of semiflexible biopolymer networks: compression-softening and stretch-stiffening Open
Gels formed by semiflexible filaments such as most biopolymers exhibit non-linear behavior in their response to shear deformation, e.g., with a pronounced strain stiffening and negative normal stress. These negative normal stresses suggest…
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Ideal reversible polymer networks Open
This work introduces ideal reversible polymer networks, describes and validates experimentally a theory to relate the network mechanical behavior to the crosslink dynamics.
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Superflexibility of graphene oxide Open
Significance Bending of a thin plate simultaneously involves contraction and stretching of matter relative to a neutral plane, and tensile rigidity dictates the ability of a thin platelet to be bent. If graphene or graphene oxide (GO) were…
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The Mechanical Properties and Elastic Anisotropies of Cubic Ni3Al from First Principles Calculations Open
Ni3Al-based superalloys have excellent mechanical properties which have been widely used in civilian and military fields. In this study, the mechanical properties of the face-centred cubic structure Ni3Al were investigated by a first princ…
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A geometrically controlled rigidity transition in a model for confluent 3D tissues Open
The origin of rigidity in disordered materials is an outstanding open problem\nin statistical physics. Previously, a class of 2D cellular models has been\nshown to undergo a rigidity transition controlled by a mechanical parameter\nthat sp…
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Normal and Fibrotic Rat Livers Demonstrate Shear Strain Softening and Compression Stiffening: A Model for Soft Tissue Mechanics Open
Tissues including liver stiffen and acquire more extracellular matrix with fibrosis. The relationship between matrix content and stiffness, however, is non-linear, and stiffness is only one component of tissue mechanics. The mechanical res…
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Cross-platform mechanical characterization of lung tissue Open
Published data on the mechanical strength and elasticity of lung tissue is widely variable, primarily due to differences in how testing was conducted across individual studies. This makes it extremely difficult to find a benchmark modulus …
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Undrained behaviour of intact soft clay under cyclic paths that match vehicle loading conditions Open
Vehicle traffic loading appears to contribute significantly to long-term settlement beneath highways, airport runways, and metro lines in China. Wheel loading imposes cycles in both the magnitude and direction of the principal stresses act…
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The Influence of Swelling on Elastic Properties of Polyacrylamide Hydrogels Open
Polyacrylamide (PAM) hydrogels are commonly used as substrates for cell mechanical and mechanobiological studies because of their tunable stiffness and ease of handling. The dependence of bulk rheological and local elastic properties (asse…
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Dynamic properties of calcareous and siliceous sands under isotropic and anisotropic stress conditions Open
The strain-dependent dynamic properties of sand are generally described by their relative density and mean effective stress, while the contribution of other factors, like soil origin, mineralogy, grain morphology, and initial stress anisot…
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Assessment of basal heave stability for braced excavations in anisotropic clay using extreme gradient boosting and random forest regression Open
A finite-element analysis considering the anisotropy for the undrained shear strength was performed to examine the effects of the total stress-based anisotropic model NGI-ADP (developed by Norwegian Geotechnical Institute based on the Acti…
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Holographic Phonons Open
We present a class of holographic massive gravity models that realize a spontaneous breaking of translational symmetry-they exhibit transverse phonon modes whose speed relates to the elastic shear modulus according to elasticity theory. Ma…
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A DFT study of structural, magnetic, elastic and optoelectronic properties of lanthanide based XAlO3 (X=Nd, Gd) compounds Open
Full potential linearized augmented plan wave (FP-LAPW) method based on density functional theory (DFT) is employed to investigate the structural, optoelectronic, elastic and magnetic properties of cubic XAlO3 (X = Nd, Gd) perovskites. The…
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Structure of Particle Networks in Capillary Suspensions with Wetting and Nonwetting Fluids Open
The mechanical properties of a suspension can be dramatically altered by adding a small amount of a secondary fluid that is immiscible with the bulk phase. The substantial changes in the strength of these capillary suspensions arise due to…
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On the directional elastic modulus of the TPMS structures and a novel hybridization method to control anisotropy Open
Unlike random cellular materials, in TPMS structures the ligament size and orientation distribution are constant, leading to a directional dependency of the mechanical properties. In this work, the directional dependency of elastic propert…
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Perspective: Superhard metal borides: A look forward Open
Previous efforts toward the synthesis of materials with superior mechanical properties (e.g., superhardness, high bulk modulus, and high shear modulus) have focused on binary metal boride structures with short covalent bonds. In this paper…
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Estimating the effective elastic modulus and specific fracture energy of snowpack layers from field experiments Open
Measurements of the mechanical properties of snow are essential for improving our understanding and the prediction of snow failure and hence avalanche release. We performed fracture mechanical experiments in which a crack was initiated by …
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Multi-scale characterization of lignin modified bitumen using experimental and molecular dynamics simulation methods Open
Lignin, as a major waste from biofuel and paper industries, could be utilized as a modifier to enhance the relevant performance of bitumen. However, the effects of lignin on the thermodynamics properties and molecular structure of bitumen …
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Aligning cellulose nanofibril dispersions for tougher fibers Open
Nanocomposite materials made from cellulose show a great potential as future high-performance and sustainable materials. We show how high aspect ratio cellulose nanofibrils can be efficiently aligned in extrusion to fibers, leading to incr…
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Scaling ansatz for the jamming transition Open
Significance Central to the theory of phase transitions is the fact that the free energy can be written in a scale-invariant form that captures scaling exponent relations. Our work shows that, for the jamming transition, the elastic energy…