Free Vibration Analysis of Sandwich Plates with Auxetic Core and Porous FGM Faces Resting on Winkler/Pasternak/Kerr Elastic Foundations. VJAS [Internet]. 2025 Jun. 28 [cited 2025 Jul. 2];8(2):2493-508. Available from: https://eng.vjas.vn/index.php/vjas/article/view/564