Methodology for Developing an Engineering Solution for Web Crippling

by Maurice L. Sharp, Alcoa Lab, Alcoa Center, United States,
Andrzej P. Jaworski, Alcoa Lab, Alcoa Center, United States,



Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract:

This paper describes the methodology used to develop an engineering solution for web crippling of aluminum trapezoidal sections. The development has two steps. The functional form for each of six geometrical and two material parameters was established based on existing information, experience and parameter studies using DYNA3D, an explicit finite element code developed at Lawrence Livermore Laboratories. The second step optimized the coefficients for the parameters statistically to obtain the best fit between the data and the engineering solution.

Subject Headings: Parameters (statistics) | Finite element method | Failure analysis | Webs (structure) | Material failures | Laboratory tests | Data analysis

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