Abstract
A systematic investigation is carried out on how different parameters influence stress and strain concentration factors (SCF and SNCF) in a composite plate with a hole under uniaxial tension. Flat and singly curved composite plates have been modelled in ANSYS 15.0. The governing parameter includes: (i) size, shape and eccentricity of hole, (ii) number of plies, (v) fiber orientation and (vi) plate curvature. It is observed that different parameters influence the SCF and SNCF with varying degrees. For example, SCF may be as high as 7.16 for a square shaped hole. Also, SCF and SNCF are found to be approximately same in most of the cases. Finally, simplified design formulas are developed for evaluation of SCF for a wide range of hole size, eccentricity and fiber orientation.
| Original language | English |
|---|---|
| Pages (from-to) | 213-231 |
| Number of pages | 19 |
| Journal | Curved and Layered Structures |
| Volume | 5 |
| Issue number | 1 |
| DOIs | |
| State | Published - Sep 1 2018 |
| Externally published | Yes |
Funding
Acknowledgement: This work was supported by Indian Space Research Organization (ISRO) through ISRO-IITK Space Technology Cell. Any opinions, findings, and conclusions expressed in this paper are those of the authors, and do not necessarily reflect those of the sponsoring organization.
| Funders | Funder number |
|---|---|
| ISRO-IITK | |
| Indian Space Research Organization |
Keywords
- Composite plate
- Fiber orientation
- Sensitivity analysis
- Strain concentration factor
- Stress concentration factor
- Stress distribution