Flexure Modulus of Orthodontic Stainless Steel Wires
Tóm tắt
The flexure modulus of elasticity of standard stainless steel orthodontic wires was determined by the use of an iterative finite element technique to be 25.4 x 106 psi (175 x 103 MN/m2). This technique accounts for the configurational changes in the test specimens due to the relatively large deflections during the cantilever test. Under these conditions, the elementary strength of materials relationships does not accurately describe the flexure characteristics of the wires.
Từ khóa
Tài liệu tham khảo
Morrow, R.E., 1978, IADR Progr & Abst, 57
Instruction Manual for Six-inch-pound Capacity Stiffness Tester: Tinius Olsen Testing Machine Co., Inc., Willow Grove, PA, p. 9.
Popov, E.P.; Introduction to Mechanics of Material, Englewood Cliffs , New Jersey: Prentice-Hall, Inc., 1952, p. 435.
1977, JADA, 95, 1169
Timoshenko, S. and Goodier, J.N.: Theory of Elasticity, 2nd ed. New York: McGraw-Hill Co., Inc., 1951, p. 39.
Snedecor, G.W. and Cochran, W.G.: Statistical Methods, 6th ed. Ames, Iowa: Iowa State University Press, 1967, pp. 135-157.