Please use this identifier to cite or link to this item:
|Title:||KIC Determination-a non-standard approach|
|Source:||Lai, M.O. (1991). KIC Determination-a non-standard approach. Engineering Fracture Mechanics 39 (2) : 373-375. ScholarBank@NUS Repository.|
|Abstract:||The ballizing process of forcing a 19.06 mm diameter tungsten carbide ball through a slightly undersize 18.70 mm diameter bore has been used in the present investigation to determine the fracture toughness of polymethyl methacrylate. The specimen consisted of a 10.65 mm wall thickness thick-walled cylinder. A notch of constant depth was machined on the outer surface in the direction of the axis of the cylinder. The depth of the notch was increased such that when the specimen was ballized, a crack was generated from the notch. The critical crack depth was found to be 2.0 mm. With this depth, fracture toughness of the material was determined using thick-walled cylinder theory together with the appropriate stress intensity factor. Fracture toughness of the material was also determined using standard 3-point bend specimens according to ASTM E399-81 standard procedures. It was found that the result from the ballizing process closely estimated that from the standard test. © 1991.|
|Source Title:||Engineering Fracture Mechanics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 24, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.