Stress analysis of impacted laminated composite plates with a hybrid-stress finite-element method
Thesis/Dissertation
·
OSTI ID:6228681
A systematic study of the response of laminated plates subject to static, dynamic, and impact loading was conducted by using a hybrid-stress finite-element method. The hybrid stress model was based on the modified Reissner principle. The transverse shear effects, as well as the coupling effects of stretching and bending, were included in the model. The displacement field was interpolated through shape functions, and the stress field was interpolated through assumed stress polynomials. The validity of the hybrid-stress model was determined by comparing the numerical results with existing exact analytical solutions. A frontal solution method was employed to solve the cylindrical bending problems. The dynamic response of a laminated plate impacted by a projectile was analyzed. The force distributions were based on the principle of linear impulse and momentum and the Hertzian impact law. The interlaminar transverse shear stresses and normal stress were incorporated into a quadratic failure criterion to perform the failure analysis. The results showed that the delamination crack was initiated near the area of impact and propagated outwardly.
- Research Organization:
- Florida Univ., Gainesville (USA)
- OSTI ID:
- 6228681
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fracture analysis of internally delaminated unsymmetric laminated composite plates
A study of the interlaminar stress-continuity theories for composite laminates
Modeling multiple delamination in laminated plates
Conference
·
Tue Dec 30 23:00:00 EST 1997
·
OSTI ID:566520
A study of the interlaminar stress-continuity theories for composite laminates
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1990
·
OSTI ID:7201580
Modeling multiple delamination in laminated plates
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:237755