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Comparison of mode ii and iii monotonic and fatigue delamination onset behavior for carbon/toughened epoxy composites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lee, Shaw Ming O'Brien, T. Kevin Li, Jian |
| Copyright Year | 1997 |
| Description | Monotonic and fatigue tests were performed to compare the Mode II and III interlaminar fracture toughness and fatigue delamination onset for Tenax-HTA/R6376 carbon/toughened epoxy composites. The Mode II interlaminar fracture toughness and fatigue delamination onset were characterized using the end-notched flexure (ENF) test while the Mode III interlaminar fracture toughness and fatigue delamination onset were characterized by using the edge crack torsion (ECT) test. Monotonic tests show that the Mode III fracture toughness is higher than the Mode II fracture toughness. Both Mode II and III cyclic loading greatly increases the tendency for a delamination to grow relative to a single monotonically increasing load. Under fatigue loading, the Mode III specimen also has a longer life than the Mode II specimen. |
| File Size | 529597 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040110399 |
| Archival Resource Key | ark:/13960/t1ck3bd9b |
| Language | English |
| Publisher Date | 1997-01-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Fatigue Tests Epoxy Matrix Composites Edge Cracks Interlaminar Stress Cyclic Loads Delaminating Mechanical Properties Cantilever Beams Fracture Strength Torsion Flexing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
