Results 11 to 20 of about 27,965 (266)

Springback behavior of a metal/polymer laminate in incremental sheet forming: stress/strain relaxation perspective

open access: yesJournal of Materials Research and Technology, 2023
Metal/polymer laminates are important lightweight construction composite materials. In search of economical alternatives of expensive traditional processes, feasibility of Single Point Incremental Forming (SPIF) to process laminates is being analyzed ...
Abdul Qadeer   +3 more
doaj   +1 more source

Structural Relaxation Monitored by Instantaneous Shear Modulus [PDF]

open access: yesPhysical Review Letters, 1998
This paper reports on aging of the silicone oil MS704 for sudden changes of temperature from 210.5 to 209.0 K and from 207.5 to 209.0 K studied by continuously monitoring the instantaneous shear modulus G‘. The results are interpreted within the Tool-Narayanaswamy formalism with a reduced time definition based on a recently proposed expression for the ...
Niels Olsen   +2 more
openaire   +1 more source

Nonlinear Analysis of Thermoviscoelasticity of Laminated Composites [PDF]

open access: yesEngineering and Technology Journal, 2010
The nonlinear thermoviscoelastic behavior of composite thin plates isinvestigated. An experimental program covers an achievement of creep tests under different temperatures, dimensions of specimens and distribution loads to describe the equation of creep
Muhsin J.Jweeg   +2 more
doaj   +1 more source

Instantaneous Modulus Test of Solid Propellant and the Impact on the Structural Integrity of the Charge [PDF]

open access: yesHangkong bingqi
Hydroxyl-terminated polybutadiene (HTPB) propellant is investigated in this study. At three initial tensile strain rates of 100 %/s, 50 %/s and 12 %/s, the propellant relaxation modulus tests are carried out, and the relaxation modulus curves of the ...
Wang Yibo, Tang Qi, Dong Meng, Jiang Pengchen
doaj   +1 more source

New normalized constant modulus algorithms with relaxation [PDF]

open access: yesIEEE Signal Processing Letters, 1997
A new normalized constant modulus algorithm is proposed that has a more desirable error performance surface (EPS) than the existing constant modulus blind equalization algorithms. We show that for an autoregressive channel, a well-known class of undesirable local solutions (ULSs) does not exist.
Tanrikulu, O   +2 more
openaire   +3 more sources

Comparison of Relaxation Modulus Converted from Frequency- and Time-Dependent Viscoelastic Functions through Numerical Methods

open access: yesApplied Sciences, 2018
Due to the difficulty of obtaining relaxation modulus directly from experiments, many interconversion methods from other viscoelastic functions to relaxation modulus were developed in previous years.
Weiguang Zhang   +3 more
doaj   +1 more source

Effect of Microstructure on Micro-Mechanical Properties of Composite Solid Propellant

open access: yesMicromachines, 2021
This study was aimed at determining the effect of microstructure on the macro-mechanical behavior of a composite solid propellant. The microstructure model of a composite solid propellant was generated using molecular dynamics algorithm.
Tianpeng Li   +3 more
doaj   +1 more source

Relaxation modulus—complex modulus interconversion for linear viscoelastic materials

open access: yesMechanics of Time-Dependent Materials, 2012
ORONA ...
García Barruetabeña, Jon   +5 more
openaire   +2 more sources

Dynamic Characteristic Master Curve and Parameters of Different Asphalt Mixtures

open access: yesApplied Sciences, 2022
Using an AMPT tester and based on laboratory tests, this paper performed a comparative study on the dynamic characteristics of different asphalt mixtures, analyzed the influence of different asphalt binders on the characteristic parameters of the dynamic
Shijie Ma   +5 more
doaj   +1 more source

Effect of Hydrogen Bonding on Dynamic Rheological Behavior of PVA Aqueous Solution

open access: yesGels, 2022
The rheological behavior of polyvinyl alcohol (PVA) aqueous solution is crucial to optimizing the processing technology and performance of PVA products.
Qingsheng Ni   +5 more
doaj   +1 more source

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