INVESTIGATING HYPERBOLIC SHEAR DEFORMATION THEORY ON VIBROACOUSTIC BEHAVIOR OF THE INFINITE FUNCTIONALLY GRADED THICK PLATE
THIS PAPER APPLIES ACOUSTIC ANALYSIS OF SOUND TRANSMISSION LOSS (STL) THROUGH THE FUNCTIONALLY GRADED (FG) PLATE IN THE EXTERNAL FLOW EMPLOYING HYPERBOLIC SHEAR DEFORMATION THEORY (HSDT). THE PROCEDURE FOR APPLYING THE FG PLATES IS FOLLOWED BY ASSUMING THAT THE MATERIAL PROPERTIES OF THE CURRENT STRUCTURE ARE CHANGED CONTINUALLY BASED ON POWER-LAW DISTRIBUTION OF THE MATERIALS IN TERMS OF VOLUME FRACTION. THE MAIN BENEFIT OF HSDT CAN BE JUSTIFIED KNOWING THE FACT THAT, IT USES PARABOLIC TRANSVERSE SHEAR STRAIN ACROSS THE THICKNESS DIRECTION. THEREFORE, NO NEED TO ENTER THE EXTRA EFFECT OF SHEAR CORRECTION COEFFICIENT FACTOR. BESIDES, THE DISPLACEMENT FIELD IS EXTENDED AS A COMBINATION OF POLYNOMIAL AS WELL AS HYPERBOLIC TANGENT FUNCTION BY NEGLECTING THE EFFECT OF THICKNESS STRETCHING. FURTHERMORE, THE EQUATIONS OF MOTION ARE OBTAINED EMPLOYING HAMILTON’S PRINCIPLE. IN THE NEXT STEP, THE EQUATIONS ARE COMBINED WITH ACOUSTIC WAVE EQUATIONS, TO PROVIDE AN ANALYTICAL SOLUTION BASED ON HSDT. MOREOVER, SOME COMPARISONS ARE MADE WITH THE KNOWN THEORETICAL AND EXPERIMENTAL RESULTS AVAILABLE IN LITERATURE TO VERIFY THE ACCURACY AND EFFICIENCY OF THE CURRENT FORMULATION. THESE COMPARISONS REVEAL AN EXCELLENT AGREEMENT. CONSEQUENTLY, SOME CONFIGURATIONS ARE BROUGHT UP TO DEMONSTRATE WHICH PARAMETERS APPEAR TO BE EFFECTIVE TO PRESENT CONSIDERABLE IMPROVEMENT ON STL INCLUDING THE EFFECTS OF MODULUS OF ELASTICITY AND DENSITY IN THE THICKNESS DIRECTION WITH RESPECT TO VARIOUS POWER-LAW DISTRIBUTION.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).