Abstract
A procedure has been developed to investigate the nonlinear responses of composite plates under large strain and high strain rate loadings. A recently developed strain rate dependent micromechanics model is extended to account for the transverse shear effects during impact. Four different assumptions of transverse shear deformation are investigated to improve the developed strain rate dependent micromechanics model. The validities of these assumptions are investigated. The revised micromechanics model is then implemented into the higher order laminated plate theory which is modified to include the inelastic strain effect. Parametric studies are conducted to investigate the mechanical response of composite plate under high strain rate loadings. Results show the transverse shear stresses cannot be neglected in the impact problem. A significant strain rate dependency and nonlinear effects are found in responses of composite plate.
Original language | English |
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Pages (from-to) | 1365-1376 |
Number of pages | 12 |
Journal | Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference |
Volume | 2 |
State | Published - 2004 |
Event | Collect. of Pap. - 45th AIAA/ASME/ASCE/AHS/ASC Struct., Struct. Dyn. and Mater. Conf.; 12th AIAA/ASME/AHS Adapt. Struct. Conf.; 6th AIAA Non-Deterministic Approaches Forum; 5th AIAA Gossamer Spacecraft Forum - Palm Springs, CA, United States Duration: 19 Apr 2004 → 22 Apr 2004 |