Numerical fracture simulation of compact and bend specimensAn elastic-plastic finite-element analysis with a critical crack-tip-opening displacement criterion was used to simulate fracture of various size compact and bend specimens made of HY-130 steel. From the calculated load-crack-extension and load-displacement curves, J-resistance (J-R) curves were determined by several methods. The simulated 3-R curves were insensitive to specimen size up to maximum load but were sensitive to specimen configuration for crack extensions greater than 10 percent of the initial uncracked ligament length.
Document ID
19930066514
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Shivakumar, K. N. (Analytical Services and Materials, Inc. Hampton, VA, United States)
Newman, J. C., Jr. (NASA Langley Research Center Hampton, VA, United States)