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Mechanical Properties of Polymers and Composites
14 Dec 1993-
TL;DR: In this article, the authors discuss various mechanical properties of fiber-filled composites, such as elastic moduli, creep and stress relaxation, and other mechanical properties such as stress-strain behavior and strength.
Abstract: Mechanical Tests and Polymer Transitions * Elastic Moduli * Creep and Stress Relaxation * Dynamical Mechanical Properties * Stress-Strain Behaviour and Strength * Other mechanical Properties * Particulate-Filled Polymers * Fiber- Filled Composites and Other Composites.
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TL;DR: In this article, the authors evaluate the extent of interfacial debonding in binary blends based on the comparison of tensile (or yield) strength with model predictions and employ a two-parameter mechanically equivalent model and data on the phase continuity of constituents acquired from percolation theory.
39 citations
TL;DR: Inverse gas chromatography (IGC) has been used to investigate the surface properties of calcined kaolins and the effect on the mechanical properties of a Nylon-6 composite containing the clay as mentioned in this paper.
39 citations
Cites background from "Mechanical Properties of Polymers a..."
...To ensure good mechanical properties, calcined kaolins are often treated with silane coupling agents to increase compatibility through hydrogen bonding and acid-base interactions [12], [13]....
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TL;DR: In this article, the free radical reaction was allowed to occur within polymer matrix and between the blend and natural fibres by introducing biomass from a side feeder, aiming to achieve matrix toughening and polymer/fibre interface enhancement simultaneously.
39 citations
TL;DR: The dynamic properties of human TM obtained in this study provide a better description of the damping behavior of ear tissues and can be transferred into the finite element model of the human ear to replace the Rayleigh type damping.
Abstract: The human tympanic membrane (TM) transfers sound in the ear canal into the mechanical vibration of the ossicles in the middle ear. The dynamic properties of TM directly affect the middle ear transfer function. The static or quasi-static mechanical properties of TM were reported in the literature, but the dynamic properties of TM over the auditory frequency range are very limited. In this paper, a new method was developed to measure the dynamic properties of human TM using the Dynamic-Mechanical Analyzer (DMA). The test was conducted at the frequency range of 1–40 Hz at three different temperatures: 5, 25, and 37 °C. The frequency-temperature superposition was applied to extend the testing frequency range to a much higher level (at least 3800 Hz). The generalized linear solid model was employed to describe the constitutive relation of the TM. The storage modulus E′ and the loss modulus E″ were obtained from 11 specimens. The mean storage modulus was 15.1 MPa at 1 Hz and 27.6 MPa at 3800 Hz. The mean loss modulus was 0.28 MPa at 1 Hz and 4.1 MPa at 3800 Hz. The results show that the frequency-temperature superposition is a feasible approach to study the dynamic properties of the ear soft tissues. The dynamic properties of human TM obtained in this study provide a better description of the damping behavior of ear tissues. The properties can be transferred into the finite element model of the human ear to replace the Rayleigh type damping. The data reported here contribute to the biomechanics of the middle ear and improve the accuracy of the FE model for the human ear.
39 citations
39 citations