STP513

    Stress Intensity Factors for Internally Pressurized Thick-Wall Cylinders

    Published: Jan 1972


      Format Pages Price  
    PDF (176K) 12 $25   ADD TO CART
    Complete Source PDF (4.6M) 12 $94   ADD TO CART


    Abstract

    Selected stress intensity factor solutions from the literature are related to the problem of internally pressurized thick-wall cylinders with straight-front and curved-front cracks. The recent K solutions of Bowie and Freese and Rice and Levy are combined in an estimate of the K solution for a pressurized cylinder with a semielliptical crack originating along the inner wall. The estimate of K is compared with the available experimental and analytical K data for shallow cracks.

    The estimated K solution is modified to account for various complex loadings in pressurized cylinders. Included are modifications to describe (1) lack of pressure on the crack surfaces in pressurized cylinders, (2) residual stress in the wall of pressurized cylinders, and (3) a combination of an unpressurized crack and residual stress in the wall. The effect of cyclic pressure loading on K is also discussed in relation to Throop's work on fatigue of pressurized cylinders.

    Keywords:

    stresses, cracks, loads (forces), tensile properties, pressure, pressure vessels, cylinders, residual stress, geometries


    Author Information:

    Underwood, JH
    Benet Weapons Laboratory, Watervliet, N.Y.


    Paper ID: STP34113S

    Committee/Subcommittee: E08.06

    DOI: 10.1520/STP34113S


    CrossRef ASTM International is a member of CrossRef.