Thermal buckling and postbuckling of symmetrically laminated composite plates

Journal Article · Sun Dec 01 04:00:00 EST 1991 · Journal of Thermal Stresses; (United States)

DOI:https://doi.org/10.1080/01495739108927083· OSTI ID:5715947

Meyers, C A; Hyer, M W ^[1]

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1. Virginia Polytechnic Institute and State University, Blacksburg (United States)

The thermal buckling and postbuckling response of symmetrically laminated composite plates are discussed. Using variational methods in conjunction with a Rayleigh-Ritz formulation, thermal buckling and postbuckling are investigated for two laminates, a ({plus minus} 45/0/90) and a ({plus minus} 45/02), under two different simple support conditions, fixed and sliding. These laminates are subjected to the condition of a uniform temperature change. The effects of the principal material axis not being aligned with the edges of the plate, referred to here as material axis skewing, are also investigated. Although differences between buckling temperatures for the two support conditions were small, support conditions can have a large influence on thermal postbuckling response. In general, plates with fixed simple supports deflect more than plates with sliding simple supports. In addition, support conditions can influence modal interaction. Skewing of the material axis decreases the buckling temperatures of both laminates and, like fixed support conditions, causes increased postbuckling deflections. Skewing also influences modal interaction. 8 refs.

• OSTI ID: 5715947
• Journal Information: Journal of Thermal Stresses; (United States), Journal Name: Journal of Thermal Stresses; (United States) Vol. 14; ISSN JTSTD; ISSN 0149-5739
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
42 ENGINEERING
420200 -- Engineering-- Facilities
Equipment
& Techniques
COMPOSITE MATERIALS
DEFORMATION
MATERIALS
MECHANICAL STRUCTURES
PLATES
RITZ METHOD
STRESSES
TEMPERATURE GRADIENTS
THERMAL STRESSES