Results 281 to 290 of about 101,495 (322)

Response of Fractional Oscillators With Viscoelastic Term Under Random Excitation

Journal of Computational and Nonlinear Dynamics, 2014
A system with fractional damping and a viscoelastic term subject to narrow-band noise is considered in this paper. Based on the revisit of the Lindstedt–Poincaré (LP) and multiple scales method, we present a new procedure to obtain the second-order approximate analytical solution, and then the frequency–amplitude response equations in the deterministic
Yong Xu, Yongge Li, Di Liu
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Multidimensional viscoelasticity equations with nonlinear damping and source terms

Nonlinear Analysis: Theory, Methods & Applications, 2004
The authors investigate the initial-boundary value problem \(u_{tt}-\Delta u_t-\sum_{i=1}^N\frac \partial{\partial x_i}\sigma_i(u_{x_i})+f(u_t)=g(u)\), \(x\in \Omega\), \(t>0,\) \(u(x,0)=u_0(x)\), \(u_t(x,0)=u_1(x)\), \(x\in \Omega\); \(u(x,t)=0\), \(x\in \partial\Omega\), \(t\geq 0,\) where \(\Omega\subset \mathbb R^N\) is a bounded domain.
Liu, Yacheng, Zhao, Junsheng
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Long-term dynamics of a viscoelastic suspension bridge

Meccanica, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bochicchio I., GIORGI, Claudio, VUK, Elena   +2 more
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Homogenizing the viscoelasticity problem with long-term memory

Mathematical Notes, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Generalized criterion of the long-term strength of viscoelastic materials

Polymer Mechanics, 1976
A long-term strength condition of the same type as the Il'yushin [2] or Moskvitin [1] nonlinear criterion is proposed. A method is suggested for determining the stress and time functions forming part of the proposed criterion from the long-term strength diagrams and from the data of pulsed or stepped loading tests.
Yu. Ya. Bart, V. P. Trifonov, A. B. Kozachenko, N. I. Malinin   +3 more
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Long-term viscoelastic response in physically aging amorphous polymers

Physica A: Statistical Mechanics and its Applications, 1998
Abstract Based on the concept of transient networks, a constitutive model is derived for the long-term viscoelastic response in physically aging amorphous polymers. Breakage and reformation rates for active chains of various kinds are assumed to depend on a sum of free-volume fractions, which are governed by kinetic equations. Comparison of numerical
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Long-term crack resistance of aging viscoelastic composite in static loading

International Applied Mechanics, 1999
In the framework of the theory of subcritical crack development in viscoelastic bodies (see \textit{A.~A.~Kaminskii} and \textit{G.~V.~Gavrilov}, Prikl. Mekh. 34, No.~11, 60--66 (1998)) the initial stage of the subcritical crack development in the aging composite plate under constant external loading is investigated in terms of the generalized method ...
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An effect of decay rates: Supercritical damping and a viscoelastic term

Evolution Equations and Control Theory
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Li, Fang, Li, Xiaolei
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Simplified determination of long-term viscoelastic behavior of amorphous resin

Mechanics of Time-Dependent Materials, 2012
The time-temperature superposition principle has been applied to predict accurately the long-term viscoelastic behavior of amorphous resin at a temperature below the glass transition temperature from measuring the short-term viscoelastic behavior at elevated temperatures.
Hongneng Cai, Masuyuki Nakada, Yasushi Miyano   +2 more
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smartPearls® for dermal bioavailability enhancement – Long-term stabilization of suspensions by viscoelasticity

International Journal of Pharmaceutics, 2019
smartPearls® are a novel dermal delivery system based on mesoporous (pores 2-50 nm) particles, developed in 2014. Their pores can be loaded with active which is long-term stabilized in its amorphous state. The increased saturation solubility by the amorphous state leads to an increased dermal bioavailability of poorly soluble actives.
David, Hespeler, Daniel, Knoth, Cornelia M, Keck, Rainer H, Müller, Sung Min, Pyo   +4 more
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