Models available in publications for studying the stability of functionally graded plates are usually tested for some special cases available in publications. and then they are used to study a wide range of issues. This approach is fraught with the danger of making serious mistakes. especially when calculating structures on an elastic foundation. https://www.diegojavierfares.com/flash-offer-A-D-EJ-123-Newton-Compact-Balance-Scale-120-x-0-001-g-hot-grab/