Effect of Samples Cutting Position and Gage Length or Specimen Geometry on the Mechanical Properties of Woven Thermoplastic Prepreg
Titel:
Effect of Samples Cutting Position and Gage Length or Specimen Geometry on the Mechanical Properties of Woven Thermoplastic Prepreg
Auteur:
Mariatti, M. Nasir, M. Ismail, H.
Verschenen in:
International journal of polymeric materials
Paginering:
Jaargang 49 (2001) nr. 3 pagina's 259-270
Jaar:
2001-05-01
Inhoud:
Woven composites are getting acceptance in many engineering applications such as tranportation, construction and automotive, albeit in most instances are rather confined to those of thermoset matrices. In view of many favourable circumstances, thermoplastic based systems are slowly gaining recognition which can be easily attributed to their unique properties. For example, these include better damage tolerence, ease of handling, recyclability, etc. However, they are always referred to those derived from fabrics, either impregnated or otherwise. Here, an alternative system was realized by utilizing the impregnated towpreg or simply continuous fiber impregnated thermoplastic (COFIT). Results on composite testing, using tensile measurement as an example apart from type of towpregs, weave characteristics, etc., it clearly shows that the tensile properties of any woven structures are dependent on specimen cutting position coupled with gage length too. Generally, the woven system's properties are manifested by the presence of what is called weave characteristics such as interlaces, floats length, crimps, etc.