A creep-rupture model of filament-wound spherical pressure vesselsThe creep-rupture model is that of a quasi-isotropic filament-wound spherical pressure vessel, subjected to internal pressurization. The matrix material of the composite system is assumed to be linearly viscoelastic. Internal damage resulting from the relaxation of the matrix and the corresponding increase in microcracks is represented by a functional relationship between circumferential strain and transverse modulus. The numerical solution to this nonlinear problem is an iterative technique, whereby the elastic-viscoelastic correspondence principle is employed. In the Laplace domain, the associated elastic solution is obtained and this solution is inverted by the multidata method to yield the time-dependent solution.
Document ID
19870046319
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dozier, Jan D. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Hackett, Robert M. (Mississippi, University University, United States)