Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
772127 | Engineering Fracture Mechanics | 2008 | 16 Pages |
Abstract
Matrix micro-cracking due to thermal loading is a major concern in composite cryogenic tanks because it presents permeation paths for the stored fluids and gases. Accurate prediction of composite damage due to micro-crack initiation is thus an important aspect of tank analysis and design. In the research presented, failure criteria are applied at both the composite (macro-) and constituent (micro-) scale in an effort to assess the most effective analysis techniques for predicting composite damage. Constituent scale information is developed using multi-continuum theory, a classic strain decomposition approach. Numerical predictions are correlated against experimental results.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Seth Nickerson, J. Steven Mayes, Jeffry S. Welsh,