Abstract: A hardening rule is described based on yield and memory surfaces. A memory surface indicates the extent of loading, and a yield surface is the locus of the elastic region. We define a ...

Abstract: A nonlinear viscoelastic constitutive model, in differential form, is presented based on the deformation characteristics of thermoset polymers under complex loadings. This rheological model includes ...

Abstract: In its 1988 report, the U.S. National Research Council identified principles to be followed in order to improve estimation of extreme flood quantiles. In spite of the many advances attained by more recent research on extreme ...

Abstract: Patterns of methane

Abstract: This study applies calculations and methodologies for the evaluation of concentrations of zinc and nickel coupled to local reference values (background). It also calculates the geoaccumulation index and the intensity of ...

Abstract: A procedure based on a direct variational method is presented for the determination of an optimum shape of a shell of revolution connecting a cylinder to a sphere under internal pressure. The optimized configuration of ...

Abstract: The estimation of long-term flow duration curves (FDC) and annual flow duration curves (AFDC) are frequently required for water resources planning and management at ungauged catchments. The index flow framework provides a ...

Abstract: The uniform flow over a nominally two-dimensional normal thin flat plate with blockage ratio 0.214 was numerically investigated in three dimensions by three methods: unsteady Reynolds-averaged Navier–Stokes (URANS) based ...