BULLETIN 328-1987 SPECIMEN THICKNESS EFFECTS FOR ELASTIC-PLASTIC CTOD TOUGHNESS OF AN A36 STEEL ; AN ANALYTICAL AND EXPERIMENTAL COMPARISON OF RECTANGULAR AND SQUARE CTOD FRACTURE SPECIMENS OF AN A36 STEEL
This paper describes the results of an experimental and analytical study of the effect of specimen size on the fracture-toughness behavior of A36 steel@ primarily in the lower-transition region. This region is beyond the limits of plane-strain as defined by ASTM E-399@ but in the region where failure occurs prior to any macroscopic fibrous tearing. Experimental results were obtained using Crack-Tip Opening Displacement (CTOD) three-point bend specimens@ and analytical results were obtained using a 3-D elastic-plastic finiteelement analysis. Two specimen sizes@ full thickness [31.8-mm (1.25-in.) thick] and reduced thickness [12.7-mm (0.50-in.) thick]@ were investigated using the preferred t X 2t X 8t specimen size.
BULLETIN 328-1987 history
1987BULLETIN 328-1987 SPECIMEN THICKNESS EFFECTS FOR ELASTIC-PLASTIC CTOD TOUGHNESS OF AN A36 STEEL ; AN ANALYTICAL AND EXPERIMENTAL COMPARISON OF RECTANGULAR AND SQUARE CTOD FRACTURE SPECIMENS OF AN A36 STEEL