Accession Number : ADA319729

Title :   Toughening of Brittle Materials.

Corporate Author : CHICAGO UNIV IL

Personal Author(s) : Chudnovsky, A. ; Baron, D. ; Shulkin, Y.

PDF Url : ADA319729

Report Date : 30 OCT 1996

Pagination or Media Count : 134

Abstract : This report is dedicated to numerical simulations of subcritical crack growth which are based on the Crack Layer Kinetic Model. Various types of loadings are considered, i.e., simple and eccentric tension, three and four point bending, dipole on the crack boundaries, constant and time varying loads. As a result, lifetime-load relations are established, a new approach to brittle material toughness assessment is proposed, and a method of reliability prediction for structural components is developed.

Descriptors :   *STRESS ANALYSIS, *CRACK PROPAGATION, STRESS STRAIN RELATIONS, ALGORITHMS, COMPUTERIZED SIMULATION, LOAD DISTRIBUTION, FATIGUE LIFE, TIME DEPENDENCE, PROBABILITY DISTRIBUTION FUNCTIONS, STRUCTURAL ANALYSIS, TOUGHNESS, BENDING, FRACTURE(MECHANICS), DEFECTS(MATERIALS), BRITTLENESS, CREEP, FAILURE(MECHANICS), PLASTICS, AXIAL LOADS, BENDING STRESS, NOTCH TOUGHNESS, STRESS CONCENTRATION, STRUCTURAL INTEGRITY.

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE