Effects of Size, Section Pattern, and Material on the Tensile Performance of Filled Thin-Walled Tubes

Table 2

Increase in tensile stresses of circular and square tubes.

	Circular hollow tubes(kN)	Circular tubes + internal support (kN)	Increase in tensile stress (%)	Square hollow tubes (kN)	Square tube + internal support (kN)	Increase in tensile stress (%)
10 MPa	1.76	1.85	5.11	1.76	1.75	−0.57
50 MPa	8.80	9.29	5.57	8.80	8.76	−0.45
100 MPa	17.60	18.62	5.80	17.60	17.52	−0.45
150 MPa	26.40	27.94	5.83	26.40	26.27	−0.49
200 MPa	35.19	37.28	5.94	35.19	35.02	−0.48
220 MPa	38.71	43.10	11.34	38.72	41.93	8.29
250 MPa	43.99	49.05	11.50	44.00	47.70	8.41
300 MPa	52.79	58.73	11.25	52.80	55.11	4.38
350 MPa	61.58	68.41	11.09	61.59	62.19	0.97
400 MPa	70.37	78.08	10.96	70.39	69.15	−1.76
450 MPa	79.16	87.75	10.85	79.19	76.25	−3.71
500 MPa	87.96	97.42	10.75	88.00	83.04	−5.64