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Advanced HDPE with increased stiffness used for water supply networks

M. L. SCUTARU1, H. TEODORESCU-DRAGHICESCU1, S. VLASE1,* , M. MARIN1

Affiliation

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

Abstract

To increase the overall stiffness of a composite laminate is usual to use a polyester mat embedded as core in thin structures. This procedure can increase the structure’s stiffness without increasing the thickness of a laminate.The paper presents the most important results obtained during three and four-point bend tests carried out on 20 × 2 mm, 25 × 2 mm, 40 × 2.3 mm, 63 × 4 mm and 90 × 6 mm high-density polyethylene (HDPE) pipelines used for water supply networks. In three-point bend tests the Young’s modulus of bending decreases with the increase of pipelines’ diameter. Main mechanical properties such Young’s moduli of bending, flexural rigidity, stiffness, load/deflection at maximum deflection and load have been determined..

Keywords

Overall stiffness, Composite laminate, High-density polyethylene, Stiffness, Water supply pipelines.

Submitted at: July 2, 2014
Accepted at: March 19, 2015

Citation

M. L. SCUTARU, H. TEODORESCU-DRAGHICESCU, S. VLASE, M. MARIN, Advanced HDPE with increased stiffness used for water supply networks, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 3-4, pp. 484-488 (2015)