Accession Number : ADA305606

Title :   Finite Element Analysis of Spotwelded, Bonded and Weldbonded Lap Joints.

Descriptive Note : Final rept.,

Corporate Author : NATIONAL BUREAU OF STANDARDS GAITHERSBURG MD

Personal Author(s) : Mitchell, Richard A. ; Woolley, Ruth M. ; Baker, Saul M.

PDF Url : ADA305606

Report Date : DEC 1975

Pagination or Media Count : 25

Abstract : Finite element computer analyses of single-lap and double-lap structural joints are described. A planform analysis articulates the in-plane deformation of the joined sheet material and the lap-shear stresses acting through the spotwelds and/or adhesive. A longitudinal cross-section analysis computes out-of-plane bending effects, particularly important in single-lap joints, and adhesive peel stresses. Numerical results are presented that suggest a reasonable degree of mutual consistency between the planform analysis and the cross-section analysis. Although the basic finite element formulation is linear, nonlinear deformation can be simulated by a series of linear solutions. The computer output includes contour plots of stress and strain fields and exaggerated-scale plots of displacements.

Descriptors :   *FINITE ELEMENT ANALYSIS, *BONDED JOINTS, *WELDED JOINTS, *SPOT WELDS, STRESSES, OUTPUT, MATERIALS, DEFORMATION, NUMERICAL ANALYSIS, BENDING, CONSISTENCY, SOLUTIONS(GENERAL), SHEETS, CROSS SECTIONS, NONLINEAR ANALYSIS, COMPUTER AIDED DIAGNOSIS, PLOTTING, ADHESIVES, FORMULAS(MATHEMATICS), LONGITUDE, CONTOURS, PEEL STRENGTH, PLANFORM.

Subject Categories : Numerical Mathematics
      Couplers, Fasteners, and Joints

Distribution Statement : APPROVED FOR PUBLIC RELEASE