Applications of higher order shear deformation theories on stress distribution in a five layer sandwich plate
محل انتشار: مجله مکانیک کاربردی محاسباتی، دوره: 48، شماره: 2
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 568
فایل این مقاله در 20 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JCAM-48-2_009
تاریخ نمایه سازی: 21 فروردین 1397
چکیده مقاله:
In this paper, layerwise theory (LT) along with the first, second and third-order shear deformation theories (FSDT, SSDT and TSDT) are used to determine the stress distribution in a simply supported square sandwich plate subjected to a uniformly distributed load. Two functionally graded (FG) face sheets encapsulate an elastomeric core while two epoxy adhesive layers adhere the core to the face sheets. The sandwich plate is assumed to be symmetric with respect to its core mid-plane. First, second and third-order shear deformation theories are used to model shear distribution in the adhesive layers as well as others. Results obtained from the three theories are compared with those of finite element solution. Results indicate that finite element analysis (FEA) and LT based on the first, second and third-order shear deformation theories give almost the same estimations on planar stresses. Moreover, the out-of-plane shear stresses obtained by FEA, are slightly different from those of LT based on FSDT. The differences are decreased on using LT based on SSDT or TSDT. Additionally, SSDT and TSDT predict almost the same distribution for the two planer stress and out-of-plane shear stress components along the face sheet thickness. Furthermore, third-order shear deformation theory seems to be more appropriate for prediction of out-of-plane shear stress at lower values of a/h ratio
کلیدواژه ها:
نویسندگان
Hamed Raissi
School of Mechanical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Mohammad Shishehsaz
School of Mechanical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Shapour Moradi
School of Mechanical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran.