THE ROLE OF CYCLIC PLASTICITY IN CRYSTALLOGRAPHIC CRACK GROWTH RETARDATION

スポンサーリンク

概要

• 論文の詳細を見る

• This paper presents a review of the effect of crack tip cyclic plasticity on retarded crystallographic(stage I) crack growth in metal single crystals, bicrystals, engineering polycrystals and particulate-reinforced metal matrix composites(PMMC).The cyclic plastic deformation at the tip of a crystallographic crack, is shown to be affected by tortuous crack wake, adjacent grain boundary, or by the surrounding particles in a PMMC.Evidence gathered shows that change in the crack growth direction results from the redistribution of crack tip plastic strain.Similarly, the crack growth rate deceleration is related to the reduction of the cyclic plastic strain range due to the crack tip shielding.The role of the cyclic plasticity as a driving force in the shielded crystallographic crack growth, is demonstrated.The threshold for both the short and long crack growth corresponds to a critical loading condition which produces a persistent slip band of the characteristic microstructural size.

• 社団法人日本材料学会の論文
• 1995-09-15

著者

• Fernand Ellyin

  Department Of Mechanical Engineering University Of Alberta

• Chingshen LI

  Department of Mechanical Engineering University of Alberta

関連論文

• THE ROLE OF CYCLIC PLASTICITY IN CRYSTALLOGRAPHIC CRACK GROWTH RETARDATION

スポンサーリンク