Title :
Strength evaluation of glass substrate using FEM analysis
Author :
Tomita, E. ; Kobayashi, M.
Author_Institution :
Mater. Sci. & Technol. Lab., Fuji Electr. Corp. Res. & Dev. Ltd., Yokosuka, Japan
Abstract :
We investigated the static and dynamic fracture characteristics of glass substrates of hard disks using FEM analysis. We introduced an evaluation method using a static stability parameter, "fracture load", and a dynamic stability parameter, "impact critical acceleration." Thickness is the most effective parameter to increase the fracture load. The fracture load and impact critical acceleration have a positive relationship.
Keywords :
Young´s modulus; finite element analysis; fracture; glass; hard discs; impact (mechanical); substrates; FEM analysis; dynamic fracture characteristics; dynamic stability parameter; fracture load; glass substrate; hard disks; impact critical acceleration; static fracture characteristics; static stability parameter; strength evaluation; Acceleration; Chemicals; Compressive stress; Disk recording; Glass; Hard disks; Laboratories; Stability; Surface cracks; Tensile stress;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2000. APMRC 2000
Conference_Location :
Tokyo, Japan
Print_ISBN :
0-7803-6254-3
DOI :
10.1109/APMRC.2000.898946
