Buscar
Mostrando ítems 1-10 de 266
Navier type exact analytical solutions for vibrations of thin-walled shallow shells with rectangular planform
(Elsevier, 2021-03)
Exact analytical solutions for the free vibrations of Thin-Walled shallow shells are presented in this work. The shells considered have rectangular planform and two principal constant curvatures. Past treatment of this ...
A boundary element analysis of symmetric laminated composite shallow shells
(Elsevier Science SaLausanneSuíça, 2010)
A boundary element method formulation for modal analysis of doubly curved thick shallow shells
(Elsevier Inc., 2016)
The study of vibrations of shells is an important aspect in the design of thin-walled structures. In general, analytical solutions for the natural frequencies of shells are not possible, and computational techniques are ...
Taphonomic field experiment in a freshwater shallow lake: alteration of gastropod shells below the sediment–water interface
(Oxford University Press, 2019-11)
We conducted a taphonomic field experiment to evaluate the effects of (1) depth below the sediment-water interface (SWI) and (2) time of exposure on the accrual of damage (particularly through dissolution) to empty mollusc ...
Vibration analysis of shear deformable shallow shells using the Boundary Element Method
(2014)
In this work, the modal and harmonic analysis of elastic shallow shells, using a Dual Reciprocity Boundary Element formulation, is presented. A boundary element formulation based on a direct time-domain formulation using ...
Boundary element analysis of shear deformable shallow shells under harmonic excitation
(Tech Science Press, 2014)
In this work, the harmonic analysis of shallow shells using the Boundary Element Method, is presented. The proposed boundary element formulation is based on a direct time-domain integration using the elastostatic fundamental ...
Transient dynamic analysis of shear deformable shallow shells using the boundary element method
(Elsevier Ltd, 2015)
The complexity involved in the dynamic response of plates brings many challenges from a mathematical standpoint. In this work, the transient dynamic analysis of elastic shallow shells under uniformly distributed pressure ...
A possible Plio-Pleistocene tsunami deposit, Hornitos, northern Chile
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2001)
Water geochemistry of shallow lakes from the southeastern Pampa plain, Argentina and their implications on mollusk shells preservation
(Elsevier Science, 2017-12-15)
A seasonal sampling of sediments, column and interstitial water for physico-chemical analysis were performed in littoral and open water areas in three freshwater shallow lakes (Nahuel Rucá, Las Mostazas and Los Carpinchos) ...
A DPG method for shallow shells
(SPRINGER HEIDELBERG, 2022)
We develop and analyze a discontinuous Petrov-Galerkin method with optimal test functions (DPG method) for a shallow shell model of Koiter type. It is based on a uniformly stable ultraweak formulation and thus converges ...