TY - JOUR TI - Free vibration and buckling analysis of functionally graded sandwich beams resting on a two-parameter elastic foundation using a quasi-3D theory AU - MOHAMED, I. AU - ŞİMŞEK, S. AU - KAHYA, V. JO - Sigma Journal of Engineering and Natural Sciences PY - 2025 VL - 43 SP - 47 EP - 61 DO - 10.14744/sigma.2025.00005 ER -