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Mechanical behavior of a thin nonwoven polyester mat subjected to three-point bend tests

R. PURCAREA1, D. LUCA MOTOC1, M. L. SCUTARU1,*

Affiliation

  1. Transilvania University of Brasov, Department of Automotives and Mechanical Engineering, 29 Eroilor Blvd., 500036 Brasov, Romania

Abstract

Within this paper, extended researches have been carried out regarding the mechanical behavior of a 4 mm thick nonwoven polyester mat subjected to three-point bend tests. From a sheet of nonwoven polyester mat impregnated with a thin layer of polyester resin just to be handled after curing, eighteen specimens have been cut according to ISO 14125:1998 – “Fibre-reinforced plastic composites – Determination of flexural properties” and subjected to three-point bend tests on a TEXTURE ANALYSER materials testing machine from Lloyd Instruments. Load-extension, stress-strain as well as other important distributions have been generated using the materials testing machine software NEXYGEN Plus. Some failure modes of the broken specimens have been put into evidence especially in side views. This material presents an outstanding resin absorption capability increasing the general stiffness of a structure..

Keywords

Three-point bending, Nonwoven polyester mat, Polyester resin, Glass microspheres, Failure mode.

Citation

R. PURCAREA, D. LUCA MOTOC, M. L. SCUTARU, Mechanical behavior of a thin nonwoven polyester mat subjected to three-point bend tests, Optoelectronics and Advanced Materials - Rapid Communications, 6, 1-2, January-February 2012, pp.214-217 (2012).

Submitted at: Jan. 10, 2012

Accepted at: Feb. 20, 2012