A novel optimization technique for identifying stacking sequence and elastic constants in composite laminates
عنوان مقاله: A novel optimization technique for identifying stacking sequence and elastic constants in composite laminates
شناسه ملی مقاله: WMECH03_129
منتشر شده در کنفرانس دو سالانه بین المللی مکانیک جامدات تجربی در سال 1394
شناسه ملی مقاله: WMECH03_129
منتشر شده در کنفرانس دو سالانه بین المللی مکانیک جامدات تجربی در سال 1394
مشخصات نویسندگان مقاله:
A Ghasemi-Ghalebahman - Assistant Professor, Department of Mechanical Engineering, Semnan University, Semnana, Iran
M Moradi-Golestani - MSc student, Department of Mechanical Engineering, Semnan University, Semnan, Iran
خلاصه مقاله:
A Ghasemi-Ghalebahman - Assistant Professor, Department of Mechanical Engineering, Semnan University, Semnana, Iran
M Moradi-Golestani - MSc student, Department of Mechanical Engineering, Semnan University, Semnan, Iran
A new inverse method is presented for laminate characterization. The elastic constants of an orthotropic plate with a given lay-up are first identified. Then, the method is utilized to simultaneously determine the stacking sequence and elastic constants, to be examined at the first time. In the direct scheme, the natural frequencies of the laminate are obtained through a parabolic shear deformation theory (PSDT) and outcomes are compared with the experimental data and analytical solutions available in the literature. The proposed inverse scheme implements a novel meta-heuristic optimization algorithm, named Drops Contact Algorithm (DCA). The results confirm better performance in convergent speed and accuracy for laminate characterization through making comparisons with those from other famous algorithms.
کلمات کلیدی: Inverse optimization, composite laminate, elastic constants, fiber orientation angle, Drops Contact Algorithm
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/510220/