Symmetrical bending of thin circular elastic plates on equally spaced point supports

Abstract

A special application of Bassali's solution for transverse flexure of thin elastic plates supported at several points is presented for the case of symmetrical bending. Equations for moments , shearing forces. and stresses are developed which may be useful for design purposes. The ex perim e ntal results although limit ed in quantity are in good a.greement with the theoretical predic tion s.

Corrosion effect on the flexural strength & micro-hardness of ips e-max ceramics

“…A cross head loading rate of 0.5 mm/minute was applied .This test assembly allowed the maximum fracture force to be generated at the center of the tested disc. The flexural strength was calculated according to equations developed by Marshall [17], Wachtman [18] and Kirstein and Woolley [19] . Readings were performed by measuring the size of the diagonals of the indentation directly in Vickers.…”

Influence of the Specimen Manufacturing Process on the Strength of Carbon‐Bonded Alumina (Al2O3–C)

“…The linear-elastic thin-plate theory [6,12,13] is applicable, in order to calculate an analytical approximation for the stress field in the B3B specimen. In case of a point load, the resulting solution would lead to a tensile stress singularity at the midpoint of the specimen on the bottom side.…”

Enhanced properties of alumina–aluminium titanate composites obtained by spark plasma reaction-sintering of slip cast green bodies

“…To estimate the indentation fracture toughness KIC, 306 N Vickers indentations were performed on the surface of the samples, inducing Palmqvist cracks, from which the indentation fracture toughness was obtained by the method of Niihara [25]. The flexural strength was measured using biaxial testing using the equations of Kirstein and Woolley [26], Vitman and Pukh [27], and the standard specification ASTM F394-78. All tests were obtained at room temperature using the universal machine Instron …”