Accession Number:

AD0753651

Title:

Static, Vibration, and Thermal Stress Analyses of Laminated Plates and Shells by the Hybrid-Stress Finite-Element Method, with Transverse Shear Deformation Effects Included

Descriptive Note:

Final rept.,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE AEROELASTIC AND STRUCTURES RESEARCH LAB

Personal Author(s):

• Mau, Sheng-Taur
• Witmer, Emmett A.

Report Date:

1972-10-01

Pagination or Media Count:

131.0

Abstract:

A method of analyzing laminated-composite, linear-elastic plate and shell structures has been developed based on the hybrid stress finite-element model. Flat-plate elements are used for both plate and shell structures. Three quadrilateral elements designated by ELEM1, ELEMZ, and ELEMR, all with linear in-plane boundary displacement and linear in-plane stress assumptions, are chosen for use. Transverse shear deformation effects, and rotary as well as in- plane inertia, are included in all of these elements. The ELEM1 element can be applied to single-layer thin or moderately thick plates and shells. The ELEMR element can be applied to multilayer thin plates and shells, and the ELEMZ element may be used to analyze single-layer or multilayer, thin or thick plates and shells.

Descriptors:

• *COMPOSITE MATERIALS
• *STRUCTURES
• CONICAL BODIES
• FIBERS
• FLAT PLATE MODELS
• LAMINATES
• MATHEMATICAL MODELS
• MECHANICAL PROPERTIES
• SHEAR STRESSES
• SHELLS(STRUCTURAL FORMS)
• THERMAL STRESSES
• VIBRATION

Subject Categories:

• Laminates and Composite Materials
• Structural Engineering and Building Technology
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE