the effect of impact modifier on creep behavior of wood flour- recycled polypropylene composites has been evaluated in this work. for this purpose, impact modifier (ethylene vinyl acetate) and recycled polypropylene were mixed with wood flour (50/50% w/w) as well as the impact modifier (0, 3%, 6% and 9%) by a counter-rotating twin-screw extruder to manufacture the wood flour- recycled polypropy...

When an anisotropic material is subject to creep conditions and a complex state of stress, an anisotropic creep damage behavior is observed. Previous research has focused on the anisotropic creep damage behavior of isotropic materials but few constitutive models have been developed for anisotropic creeping solids. This paper describes the development of a new anisotropic tertiary creep damage c...

The creep aging behaviors of retrogressed Al-Zn-Mg-Cu alloy were studied by uniaxial tensile creep tests at 140 ◦C. The effects of creep aging time and applied stress on microstructures and properties of the studied alloy were investigated by using transmission electron microscope (TEM), hardness, and corrosion resistance tests. Results show that the effects of the creep aging process on micros...

The uniaxial compression-creep behavior of unidirectionally reinforced continuous-fiber composite materials was investigated for the case where both the matrix and the fiber underwent plastic deformation by creep. The creep behavior of NiAl composites reinforced with 5 to 20 vol pct tungsten fibers was characterized at 1025 8C. The NiAl-W composites exhibited a three-stage creep behavior, with ...

In order to research the creep deformation characteristics of frozen soil and effect various influencing factors on creep, indoor uniaxial tests were carried out specimens at temperatures −5, −4, −3 −2 °C under loads 0.25, 0.5, 0.75 σt, respectively. The different load conditions are analyzed unconfined conditions. results show that test conditions, when is low, there no accelerated stage in cu...

Fibre reinforced concretes (FRCs) are composite materials now largely adopted in structural applications given their mechanical properties terms of the residual tensile strength, almost absent for plain concrete. The short-term behaviour these material has been deeply studied, while time-dependent deformations have received less attention from scientific community. present paper presents experi...

statement of problem: biomechanics of the human dentition is inherently complex. purpose: the aim of this study is to investigate, in vitro, the creep and the recovery of dentin under static uniaxial compressive stress conditions. materials and methods: specimens of cylindrical morphology were prepared from recently extracted non-carious lower molar teeth, such that the average tubule orientati...