Accession Number:

ADA556027

Title:

Elastic Stress Analysis of Advanced Functionally Graded Plates Impacted by Blast Loading

Descriptive Note:

Corporate Author:

ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI

Personal Author(s):

• Hause, Terry

Report Date:

2010-01-18

Pagination or Media Count:

38.0

Abstract:

The foundation of the theory of functionally graded plates with all four edges simply supported, under a Friedlander explosive spherical air-blast, is developed, within the classical plate theory CPT. The constituent materials, ceramic and metal, vary across the wall thickness according to a prescribed power law. The theory incorporates the geometrical nonlinearities, the dynamic effects, compressivetensile edge loadings, damping effects, and the structural symmetries symmetric and asymmetric. The static and dynamic solutions are developed leveraging the use of a stress potential coupled with the Extended-Galerkin method and the Runge-Kutta method. Validations with simpler cases existing within the literature are made. The analysis focuses on how to alleviate the unwanted effects of large elastic stresses and deformations through material selection and proper gradation of the constitutive phases.

Descriptors:

• *BLAST LOADS
• CERAMIC MATERIALS
• COMPRESSIVE PROPERTIES
• COUPLING(INTERACTION)
• ELASTIC PROPERTIES
• EXPLOSIVES
• FOUNDATIONS(STRUCTURES)
• GEOMETRY
• LAW ENFORCEMENT
• METALS
• NONLINEAR SYSTEMS
• RUNGE KUTTA METHOD
• SOLUTIONS(GENERAL)
• STATICS
• STRESS ANALYSIS
• STRUCTURAL PROPERTIES
• SYMMETRY
• TENSILE PROPERTIES

Subject Categories:

• Explosions

Distribution Statement:

APPROVED FOR PUBLIC RELEASE