Abstract
A continuum damage model developed to describe the rate-dependent dynamic response of laminated polymer composites is investigated for its behavior during strain-softening. The formulation is shown to lead to mathematically well-posed wave propagation problems as well as to unique and stable solutions. Numerical simulations of unidimensional wave-propagation in the through-thickness direction of a transversely isotropic laminate are performed. For a realistic range of damage propagation time constants the results are shown to be mesh insensitive and convergence to a finite amount of dissipated energy is obtained; two issues of concern in modeling dynamically strain-softening solids. Thus the model is validated with respect to strain-softening regimes.
Original language | English (US) |
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Pages (from-to) | 1083-1092 |
Number of pages | 10 |
Journal | Computers and Structures |
Volume | 58 |
Issue number | 6 |
DOIs | |
State | Published - Mar 17 1996 |
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Modeling and Simulation
- General Materials Science
- Mechanical Engineering
- Computer Science Applications