Probabilistic Model for Material Strength Variation and Size Effect

Abstract

The spatial strength variation of structural materials is treated as a random process, and a new interpretation for size effect is proposed; this interpretation includes the classical one as a special case. The procedure for constructing a probabilistic model for concrete is outlined, and the compatibility of this procedure with that of the finite element method is indicated. The incorporation of the probabilistic model into the finite element analysis provides a powerful tool for refined structural failure analysis. A numerical example is given dealing with the simulation of failure of concrete specimens. This example emphasizes the advantages of the proposed approach for predicting the effect of size on strength in a manner that is consistent with laboratory observations.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1972
Accession Number
AD0740752

Entities

People

  • Masanobu Shinozuka
  • Salah Nosseir

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Air Platforms
  • Counter IED

DTIC Thesaurus Topics

  • Civil Engineering
  • Composite Materials
  • Computational Science
  • Delta Functions
  • Distribution Functions
  • Engineering
  • Engineers
  • Failure Analysis
  • Finite Element Analysis
  • Gaussian Processes
  • Materials
  • Probabilistic Models
  • Random Variables
  • Simulations
  • Structural Engineering
  • Thickness
  • Two Dimensional

Readers

  • Pavement Materials Engineering.
  • Regression Analysis.
  • Systems Analysis and Design