Kinking Nonlinear Elastic Solids: Theory and Experiments

ISBN-13: 9783639136395 / Angielski / Miękka / 2009 / 224 str.

Aiguo Zhou

Opis

Recently some solids were classified as kinkingnonlinear elastic (KNE) solids because of plasticanisotropy. The KNE solids exhibit large mechanicalhysteresis due to the reproducible growth andshrinkage of incipient kink bands (IKBs). IKBs arethe precursor of regular kink bands. The stress-strain curves of KNE solids can bedescribed by 4 parameters. In this book a microscalemodel based on fully reversible dislocation motion isproposed to relate the four parameters. Amathematical method based on Preisach-Mayergoyz model(P-M model) was also developed to calculate thestrain of KNE solids from their stress history. Select MAX phases (Ti3SiC2, Ti2AlC and some of theirsolids solutions) and the hexagonal metals (Ti, Mg,Co) were tested. Their kinking nonlinear elasticdeformations were studied as a function of grainssize, porosity, deformation history and texture.IKB theory successfully explains the damping,microyielding and initial deformation of hexagonalmetals, which are not fully understood ormisunderstood for a long time. Based on this workthere is little doubt that incipient kink bandsconstitute the last piece in thedeformation-of-solids puzzle.

O autorze

Aiguo Zhou,
Lecturer of School of Materials Science and Engineering, Henan
Polytechnic University, China
Ph.D. in Material Engineering, Drexel University, USA, 2008
M.S., Tsinghua University, Beijing, China, 2003
B.S., Wuhan University of Technology, Wuhan, China, 1997

Publications: 15 journal papers and cited more than 120 times.