Fracture Testing With Arc Bend Specimens

Abstract

CCaattaum an rmreram ait^ ft n^ce^mmtr aati Identity by block number) A limited review of existing stress, stress intensity factor, and displacement analyses is compared with new work in order to select arc bend geometries appropriate for fracture testing. Results from the literature for rectangular and arc bend specimens are compared with finite element and boundary collocation results from the present work.

More on compliance of the three-point bend specimen

“…i; finite element results [6] and collocation results [7] for the S/W = 4 rectangular bend specimen, and K expression integration by the present authors. i; finite element results [6] and collocation results [7] for the S/W = 4 rectangular bend specimen, and K expression integration by the present authors.…”

“…The dimensionless parameter used for the ordinate of the plots was chosen [6] so that both the a/W = 0 and a/W = 1 limits of the parameter are known and finite.…”

Compliance of a Three-Point Bend Specimen at Load Line

“…6 = 6 bend + 6 shear + 6 crack (1) where <S^e n( j and "Sg^gj. are the bending and shear displacements of the uncracked specimen and "Scrack is t^6 displacement due only to the crack.…”