The Behavior of Rectangular Composite Material Plates Under Lateral and Hygrothermal Loads.
Abstract
An analysis of generally laminated rectangular composite plates subject to lateral pressure and hygrothermal loads is presented. Included are the effects of transverse shear and transverse normal deformations--the latter effect being included to determine the importance of through the thickness hygroscopic expansions of the polymeric matrix. Solutions are obtained using the theorem of minimum potential energy for both clamped and simply-supported boundary conditions. In addition various in-plane boundary conditions are studied to demonstrate the behavior of unsymmetric laminates subjected to a hygrothermal environment. Numerical results of plate deflections and rotations for various width to thickness and length to width aspect ratios show that, while transverse shear deformations are important, transverse normal deformations have no appreciable influence on the solution. Results presented display the magnitude and distribution of lamina stresses under lateral pressure and hygrothermal loads for different in-plane restraint conditions and laminate lay-up patterns.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1978
- Accession Number
- ADA062262
Entities
People
- Jack R. Vinson
- James G. Sloan
Organizations
- University of Delaware