A Review of the Elastic-Plastic Analysis of Steel Plates Loaded in In-Plane Compression

摘要

The review considers recent finite-element, finite difference, dynamic relaxation, and energy methods for the analysis of plates, accounting for welding residual stresses and initial out-of-flatness. The principles of each method, and the approximations made, are described. Load-shortening curves for 16 representative cases are compared, and the differences are identified. The likely causes are described, where possible. Certain approximations to yield criteria and changes to the residual stress pattern are suggested to be undesirable. The strengths obtained from these detailed solutions are also compared with approximate solutions based on large-deflections, elastic analysis.