A Refined Higher-Order Hybrid Stress Quadrilateral Element for Free Vibration and Buckling Analyses of Reissner-Mindlin Plates

Table 19

The factor of uniaxial buckling loads along the -axis of rectangular plates (SSSS) with various length-to-width ratios and various thickness-to-width ratios.

		S8R	ES-DSG3 [47]	Mesh-free [48]	QH8-R	pb-2 Ritz [46]
0.5	0.05	6.0376	5.9873	6.0405	6.0822	6.0372
	0.1	5.4779	5.3064	5.3116	5.5071	5.4777
	0.2	1.9525	3.720	3.7157	3.9754	3.9963
1	0.05	3.9441	3.9412	3.9293	3.9528	3.9444
	0.1	3.7861	3.7402	3.7270	3.7855	3.7865
	0.2	2.0444	3.1263	3.1471	3.2427	3.2637
1.5	0.05	4.2576	4.2852	4.2116	4.2745	4.2570
	0.1	4.0255	3.9844	3.8982	4.0332	4.0250
	0.2	2.0132	3.1461	3.1032	3.2966	3.3048
2	0.05	3.9440	3.9811	3.8657	3.9528	3.9444
	0.1	3.7860	3.7711	3.6797	3.7855	3.7865
	0.2	1.9486	3.1415	3.0783	3.2427	3.2637
2.5	0.05	4.0673	4.1691	3.9600	4.0795	4.0645
	0.1	3.8700	3.8924	3.7311	3.8737	3.8683
	0.2	1.8697	3.1234	3.0306	3.2338	3.2421