Détermination des déformations résiduelles dans les tubes HDPE-100 par la méthode d’enlèvement de couches

Hana Fadda

Article Details

Détermination des déformations résiduelles dans les tubes HDPE-100 par la méthode d’enlèvement de couches

Authors:

Hana Fadda

Publisher:

Ecole Nationale supérieure Polytechnique

Journal:

Communication science et technologie Vol.12 Issue 1, pp.85-96

Document Type:

Article

Publication Date:

1/2014

Document Language:

French

Document ID (Org No.):

2001541947

pISSN:

2773-3483

Keywords:

HDPE-100/ Pipe/ Machining/ Residual strain/ Residual stress/ Mechanical properties/ L and T directions/

Abstract:

 Abstract —: This study provides an approach for determining circumferential residual strains and mechanical properties in a high-density polyethylene pipe. The method is based on the preparation of cylindrical envelopes of specific dimensions by machining and the measurement of the obtained deformations as a function of time, after cutting the rings in the longitudinal direction. In order to identify the impact of these residual strains, tensile tests are performed on standard specimens extracted from the pipe wall in L and T directions. The results indicate an evolution of displacements caused by the liberation of internal residual stresses. The calculated stresses are highly compressive on external layers. The mechanical properties measured on the internal layers are largely higher than those of external layers which indicates a difference in morphologies between outer and inner pipe layers imparted by the extrusion process.

Article Details

Détermination des déformations résiduelles dans les tubes HDPE-100 par la méthode d’enlèvement de couches

Authors: Hana Fadda

Publisher: Ecole Nationale supérieure Polytechnique

Journal: Communication science et technologie Vol.12 Issue 1, pp.85-96

Document Type: Article

Publication Date: 1/2014

Document Language: French

Document ID (Org No.): 2001541947

pISSN: 2773-3483

HDPE-100/ Pipe/ Machining/ Residual strain/ Residual stress/ Mechanical properties/ L and T directions/

Issues

Authors:

Hana Fadda

Publisher:

Ecole Nationale supérieure Polytechnique

Journal:

Communication science et technologie Vol.12 Issue 1, pp.85-96

Document Type:

Article

Publication Date:

1/2014

Document Language:

French

Document ID (Org No.):

2001541947

pISSN:

2773-3483