TY - JOUR
T1 - A method to determine energy and power of a fracture process in polycrystals by means of HVTEM
AU - Tamayo-Meza, Pedro Alejandro
AU - Yermishkin, Viacheslav Alexandrovich
AU - Sandoval-Pineda, Juan Manuel
AU - Flores-Herrera, Luis Armando
AU - Rodríguez-Cañizo, Ricardo Gustavo
PY - 2014
Y1 - 2014
N2 - Main crack propagation process in polycrystalline materials is very complex due to intercrystalline sliding mechanism effects. Multiple factors make it considerably difficult to analyze the state of stresses in the crack tip within the theoretical scope of linear fracture mechanics (LFM). As a basis for the suggested Bilby-Cottrell-Swinden model, we propose a method to determine the state of stresses in the tip of a propagating crack in microspecimens subjected to tension and measured inside a high voltage transmission electron microscope (HVTEM). Based on the electron microscopy observations of a main crack and the formation of microcracks in the plastic zone, the J-integral was determined.
AB - Main crack propagation process in polycrystalline materials is very complex due to intercrystalline sliding mechanism effects. Multiple factors make it considerably difficult to analyze the state of stresses in the crack tip within the theoretical scope of linear fracture mechanics (LFM). As a basis for the suggested Bilby-Cottrell-Swinden model, we propose a method to determine the state of stresses in the tip of a propagating crack in microspecimens subjected to tension and measured inside a high voltage transmission electron microscope (HVTEM). Based on the electron microscopy observations of a main crack and the formation of microcracks in the plastic zone, the J-integral was determined.
UR - http://www.scopus.com/inward/record.url?scp=84896118991&partnerID=8YFLogxK
U2 - 10.1155/2014/274502
DO - 10.1155/2014/274502
M3 - Artículo
SN - 1687-8434
VL - 2014
JO - Advances in Materials Science and Engineering
JF - Advances in Materials Science and Engineering
M1 - 274502
ER -