Abstract. Strong seismic excitations can induce considerable displacements in base-isolated structures. These may turn cause damage to the isolation system or impacts against adjacent structures event of an insufficient gap. A strategy reducing be achieved through interposition, between isolated structure and structures, deformable dissipative devices, called bumpers. In this paper, response si...

Polypropylene (PP) has a wide range of applications in the automobile bumpers due to its many excellent properties. Mechanical properties PP for are investigated through an artificial accelerated aging test. The rules after different years normal use and test analyzed. correlation between natural artificially is also explored. It provides reference study polymers automotive applications. Result...

The large displacements caused by strong earthquakes in base-isolated structures (buildings, bridges, strategic facilities, equipment, ⋯) can excessively deform or damage the isolation system lead to pounding with surrounding moat walls adjacent structures, if available seismic gap is not sufficient. acceleration spikes impact structure itself as well sensitive equipment housed it. A possible m...

in this study an empirical model which can be used to predict the rutting parameter (g*/sinδ) for neat and powder rubber modified bitumen describes. the model was developed using 36 unique powder rubber modified bitumen combinations, rubber concentrations were varied at 5% intervals between 5 and 20%. the effects of powder rubber particle size on model accuracy were also studied ultimately a mo...

These days, fuel economy and emission petrol control of passenger vehicles are two critical challenges. The most effective approach to improve efficiency with the front rear parts a vehicle equipped bumpers, which crucial in low-speed collisions because they serve as energy absorbers. Sacrificing safety is employ fiber reinforced composite materials body cars. fascia major element that designed...

in this article the transient heat transfer in rubber parts has been studied. this study is usefull for estimation of the minimum curing time of the rubber parts and thereby to ensure the quality of the rubber. also is the temperature distribution during the rubber curing is well know, then the curing time could accurately be estimated, which will lead to a better curing process. in this regard...