Abstract
A three-dimensional continuum damage mechanics-based material model has been implemented in an implicit Finite Element code to simulate the progressive degradation of advanced composite materials. The damage model uses seven damage variables assigned to tensile, compressive and non-linear shear damage at a laminae level. The objectivity of the numerical discretization is assured using a smeared formulation. The material model was benchmarked against experimental uniaxial coupon tests and it is shown to reproduce key aspects observable during failure, such as the inclined fracture plane in matrix compression and the shear band in a ±45° tension specimen.
| Original language | English |
|---|---|
| Title of host publication | 16th ICCM International Conference on Composite Materials |
| Place of Publication | Kyoto, Japan |
| Publisher | International Committee on Composite Materials |
| Pages | 234-246 |
| Number of pages | 13 |
| Publication status | Published - 2007 |
Bibliographical note
16th ICCM International Conference on Composite MaterialsKyoto, Japan
08 -13 Jul 2007
Keywords
- Composite structures Continuum damage mechanics Implicit FE Glass ceramics Advanced composite materials Composite panels Damage variables Finite element codes Inclined fracture Material modeling Matrix compression Numerical discretization Failure (mechanical)