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THE THEORETICAL ANALYSIS FOR THE BRAZILIAN TEST IS A CLASSICAL PLANE STRESS PROBLEM OF ELASTICITY THEORY, WHERE A VERTICAL FORCE IS APPLIED TO A HORIZONTAL PLANE, THE BOUNDARY OF A SEMI-INFINITE MEDIUM. HY-POTHESIZING A NORMAL RADIAL STRESS FIELD, THE RESULTS OF THAT MODEL ARE CORRECT. NEVERTHELESS, THE SUPERPOSITION OF THREE STRESS FIELDS, WITH TWO BEING BASED ON PRIOR RESULTS AND THE THIRD BASED ON A HYDROSTATIC STRESS FIELD, IS INCORRECT. INDEED, THIS WORK SHOWS THAT THE CAUCHY VECTORS (TRACTIONS) ARE NON-VANISHING IN THE PARALLEL PLANES IN WHICH THE TWO OPPOSING VERTICAL FORCES ARE APPLIED. THE AIM OF THIS WORK IS TO DETAIL THE PROCESS USED IN THE CONSTRUCTION OF THE THEORETICAL MODEL FOR THE THREE STRESS FIELDS USED, WITH THE OBJECTIVE BEING TO DEMONSTRATE THE INCONSISTENCY OFTEN STATED IN THE LITERATURE.

Superposition of Stress Fields in Diametrically Compressed Cylinders