... 27 07 2022 12 12 2022 design plastic material Ramos formulation viscoelasticity waterhammer Cavitation piping systems, consequent upon abrupt changes in the flow conditions, poses significant challenges to designing engineers. In fact, this phenomenon may be encountered...

.... Haddar , eds., Springer, Cham, Switzerland, Mar. 15–16, pp. 117 – 124. 10.1007/978-3-030-76517-0_14 [11] Aklonis , J. J. , MacKnight , W. J. , and Shen , M. , 1972 , Introduction to Polymer Viscoelasticity , Wiley-Interscience , New York . [12] Covas...

... of the loading in a linear elastic way, time-dependent behavior was demonstrated in PSP, and was then the subject of further analysis and description. Based on the structural features of PSP and the viscoelastic behaviors of the matrix, a three-layer viscoelastic model was proposed to identify time-dependent...

... viscoelastic model by means of creep and recovery tests at 288 ° C . The model was employed to predict the response of the material under monotonic loading/unloading and multistep load histories. Freestanding postcure cycle for PMR-15 panels The behavior of the PMR-15 neat resin at 288 ° C...

... viscoelastic material. The governing equations are transformed using Laplace and Carson transforms. The transformed deviation of the cross section from its initial shape is inverted exactly by evaluating the Bromwich integral and approximately by the simpler direct inversion method. The two inversion methods...

...Akihiro Matsuda In this paper, improvements of evaluation method for mechanical properties of rubber materials and isolated rubber bearings are shown. The displacement/pressure mixed method of hyperelastic material considering the viscoelastic effect, compressibility and the softening effect...

... of thermoplastics indicates that there may be a large effect on the viscoelastic strains of thermoplastics from oscillating stresses. Cyclic loading on the permanent set of cross-linked elastomers has been studied. Perhaps, as expected, the effect of the oscillating behavior is measurable. Two types of tests have...