Characterization of Material Stiffness on Injection Moulded Microspecimens Using Different Test Methods

Injection moulding of polymer microparts can result in modified material behaviour due to process-induced changes in the internal properties. Thus, a transfer of the mechanical material properties in microparts, determined and valid on standardized test specimens, is only partially possible and shou...

Full description

Saved in:
Bibliographic Details
Published in:Advances in materials science and engineering 2014-01, Vol.2014 (2014), p.1-8
Main Authors: Drummer, Dietmar, Meister, Steve, Seefried, Andreas
Format: Article
Language:English
Subjects:
Bend tests
Cooling
Injection molding
Load
Materials science
Mechanical properties
Microelectromechanical systems
Moisture content
Morphology
Open access publishing
Polymers
Standardized tests
Statistical analysis
Stiffness
Studies
Test procedures
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Injection moulding of polymer microparts can result in modified material behaviour due to process-induced changes in the internal properties. Thus, a transfer of the mechanical material properties in microparts, determined and valid on standardized test specimens, is only partially possible and should be verified on microtest specimens. This paper investigates both tensile and bending test methods for a suitable characterization of material stiffness in polymer microparts. For this purpose a down-scaled standard specimen is used and tested with different testing methods. The investigations reveal that the different testing methods result in comparable mechanical values. The effects of process-induced modified mechanical behaviour are observable in the investigated testing methods. Consequently, a microbending test is potentially a suitable method for characterizing material stiffness using microspecimens.
ISSN:1687-8434
1687-8442
DOI:10.1155/2014/769206