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contributor authorYuan, Zhangxian
contributor authorKardomateas, George A.
date accessioned2022-02-05T22:30:11Z
date available2022-02-05T22:30:11Z
date copyright1/7/2021 12:00:00 AM
date issued2021
identifier issn0021-8936
identifier otherjam_88_4_041008.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4277648
description abstractThis paper presents an analysis for the dynamic stability of sandwich beams/wide plates subjected to axial impulsive loads. The formulation and solution of the problem is done by use of the extended high-order sandwich panel theory (EHSAPT). With the initial geometric imperfection included, the equations of motion in terms of seven generalized displacements are derived. The dynamic response of sandwich panels subjected to three different types of impulsive loads, namely, step, linear decay, and triangular impulse, is studied. Furthermore, the effects of the oscillation mode number, face/core materials, and geometries are investigated. It is observed that all measurements of the dynamic response, such as the maximum displacements, strains, and stresses, change at the same rate as the change of the impulse load magnitude and duration, for a specific impulse load profile. When the impulse load is lower than the static buckling load, the dynamic response is bounded no matter how long the load is applied. A step impulsive axial load with magnitude lower than the static buckling load can lead a sandwich panel to have a dynamic response as high as twice the static response. When the impulse load is higher than the static critical load, the dynamic response is unbounded with increasing load duration. However, it is possible that the dynamic response can be controlled at a low level if the duration of the impulse load is short enough, and thus, in this case, the load can safely exceed the static critical load.
publisherThe American Society of Mechanical Engineers (ASME)
titleDynamic Stability of Sandwich Beams/Wide Plates Subjected to Axial Impulsive Loads
typeJournal Paper
journal volume88
journal issue4
journal titleJournal of Applied Mechanics
identifier doi10.1115/1.4049223
journal fristpage041008-1
journal lastpage041008-15
page15
treeJournal of Applied Mechanics:;2021:;volume( 088 ):;issue: 004
contenttypeFulltext


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