Three dimensional stress evaluation of a thick plate with three penetrations subjected to pressure and edge moment loadings

Book · Wed Nov 01 04:00:00 EST 1995

OSTI ID:124722

Williams, D K; Clark, J R ^[1]; Hechmer, J L ^[2]

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1. Sharoden Engineering Consultants, Matthews, NC (United States)
2. Babcock and Wilcox, Barberton, OH (United States). Nuclear Equipment Div.

The study of evaluating three dimensional stresses as generated by the finite element method for a number of geometries is currently being conducted by the ASME Boiler and Pressure Vessel Codes Committee under the direction of the Shells and Ligaments Committee of the Pressure Vessel Research Council (PVRC). This paper describes one of the example finite element analyses (FEA) of a thick plate with three penetrations. The thick plate is subjected to a uniform pressure load on one face and a uniform edge moment loading applied through-the-thickness as a part of Phase 2 of the project. Previously, the Phase 1 Report defined six broad recommendations. Furthermore, the Phase 1 results led to the identification of four areas, for short-term consideration, for the development of appropriate guidelines in the evaluation of three dimensional stresses output from, in particular, finite element analyses. The stresses generated from the subject FEA of the perforated thick plate are reviewed in this paper. The relationship between the Code stress limits and their associated failure mechanisms are summarized; the calculated stresses are separated into the appropriate Code stress categories previously defined; the appropriate locations for the assessment of the Code stress categories are defined; and the definition and subsequent computation of the membrane-plus-bending (i.e., linearized) stresses are presented. A detailed discussion of the project`s guidelines in relation to the elastic evaluation of the three dimensional stresses is also presented.

• OSTI ID: 124722
• Report Number(s): CONF-950740--; ISBN 0-7918-1332-0
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BOUNDARY CONDITIONS
CLASSIFICATION
EXPERIMENTAL DATA
FAILURE MODE ANALYSIS
OPENINGS
PLATES
STATIC LOADS
STRESS ANALYSIS
STRESSES
THICKNESS
THREE-DIMENSIONAL CALCULATIONS