Results 201 to 210 of about 9,892 (253)

Effect of Tourmaline Nanoparticles on Thermal, Mechanical, and Electrical Properties of Epoxy Resin Nanocomposites. [PDF]

Int J Mol Sci
Yang J, Zhang H, Chen Y, Yu R.
europepmc   +1 more source

Annealed Polyvinyl Alcohol Hydrogels for Cartilage Replacement: Effects of Synthesis Parameters on Mechanical Properties. [PDF]

Gels
Mahmoud H, Puttlitz CM, Gadomski BC, Labus KM.   +3 more
europepmc   +1 more source

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Tangent modulus as a function of selected factors

Composite Structures, 2018
Abstract This paper contributes to the understanding of a stress – strain diagram (SSD) in the region beyond the elastic limit (Viscoelastic and Plastic region). According to our results, the SSD in this region can be approximated by a second degree parabola. The advantage of such an approach is the possibility to simply calculate the value of stress
Milan Gaff, Marian Babiak
exaly   +2 more sources

Tensor Presentation of Algorithmic Tangent Modulus for Plastic-Damage Models

Applied Mechanics and Materials, 2010
For a class of plastic-damage models, spectral return-mapping algorithm performed upon the principal effective stresses is efficient, while algorithmic tangent modulus formulated upon the general effective stress components is much simpler. In order to facilitate the transformation between these two sets of stress components in the formulation of ...
Ji Zhang, Zhong Xian Zhang, Cai Ping Huang   +2 more
exaly   +2 more sources

On the tangent modulus tensor in hyperelasticity

Acta Mechanica, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicholson, D. W., Lin, B.
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On the Stiffness of the Tangent Modulus Tensor in Elastoplasticity

Journal of Pressure Vessel Technology, 2011
In finite element analysis of pressure vessels undergoing elastoplastic deformation, low stiffness of the tangent modulus tensor will engender low stiffness in the tangent stiffness matrix, posing a risk of computational difficulties such as poor convergence.
Nicholson, David W., Silvers, Thomas W.
openaire   +2 more sources

Diurnal Variation of Corneal Tangent Modulus in Normal Chinese

Cornea, 2016
The aim of this study was to investigate the diurnal variation of corneal tangent modulus, measured using a novel corneal indentation device, in healthy Chinese subjects.The central corneal thickness (CCT), mean central corneal radius (meanK), intraocular pressure (IOP), and corneal stiffness of 25 young adults aged 21 to 25 years (23.0 ± 1.0 yrs) were
Hon, Ying, Wan, Kin, Chen, Guo Zhen, Lu, Shuhao, Lam, David Chuen Chun, Lam, Andrew K.C.   +5 more
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A tangent modulus method for rate dependent solids

Computers & Structures, 1984
Summary: A one step forward gradient time integration scheme is developed which leads to a tangent stiffness type method for rate dependent solids. Within the context of small strain theory numerical examples are presented showing application of the method to material behaviors ranging from elastic-nonlinearly viscous to nearly rate independent.
Peirce, D., Shih, C. F., Needleman, A.
openaire   +1 more source

Muscle Constitutive Model With a Tangent Modulus Approximation: Ansys Implementation and Verification

Journal of Biomechanical Engineering, 2023
AbstractSophisticated muscle material models are required to perform detailed finite element simulations of soft tissue; however, state-of-the-art muscle models are not among the built-in materials in popular commercial finite element software packages.
Manuel Lucas, Sampaio de Oliveira, Thomas K, Uchida   +1 more
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Research on WALKER Constitutive Model Tangent Modulus

Applied Mechanics and Materials, 2012
In elasto-plasticity computation on materials by sub-increase finite element method, in general, it is necessary to calculate the consistent tangent modulus of elements. In this paper, based on the backward Euler integration, for an unified viscoplasticity constitutive equations, a new expression of consistent tangent modulus is derived for rate ...
Yan Chen, Qing Wu Wang, Quan Shan
openaire   +1 more source