this paper presents the bending analysis of annular plates by the indirect trefftz boundary approach. the formulation for thin and thick plates is based on the kirchhoff plate theory and the reissner plate theory. the governing equations are therefore a fourth-order boundary value problem and a sixth-order boundary value problem, respectively. the trefftz method employs the complete set of solu...

in this paper, a nonlinear free vibration analysis of thin annular functionally graded (fg) plate integrated with two uniformly distributed actuator layers made of piezoelectric (pzt4) material on the top and bottom surfaces of the annular fg plate is presented based on kirchhoff plate theory. the material properties of the fgm core plate are assumed to be graded in the thickness direction acco...

Acoustic metamaterials are materials artificially engineered to control sound waves, which is not possible with conventional materials. We have proposed a design of an acoustic metamaterial plate inbuilt Helmholtz resonators. The made Polylactic acid (PLA) fabricated using additive manufacturing technique. It consists resonator-shaped cavities different sizes. In this paper, we analyzed the pro...

geometric and material nonlinear behavior of slender webs in i-column girders having stocky flanges under the action of combined lateral and axial loads is investigated. interaction curves corresponding to the application of compressive and shear loads at buckling and ultimate stages for both web plates and column sections are plotted. in addition, the effects of flange and web slenderness rati...

Laws and regulations are used to create legal obligations and define crimes. Information security concerns have prompted legislation and regulations at different levels and in different sectors to enforce legal practices and to define digital crimes. The results of digital investigations are often used as evidences whether there are guilty acts according to information security regulations. Bec...

Political candidates and citizens alike have been turning to nontraditional, “softer” sources of political information such as late-night comedy and daytime talk shows. This is particularly true during presidential elections, when candidates make guest appearances to reach audience members who may or may not be politically engaged, and when discussion of political affairs becomes more prominent...