1
|
Gugouch F, Maziri A, Elghorba M. Evaluation of damage and failure analysis of CPVC pipes. Heliyon 2024; 10:e26340. [PMID: 38404904 PMCID: PMC10884469 DOI: 10.1016/j.heliyon.2024.e26340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 02/09/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024] Open
Abstract
In this paper, the work we have carried out has focused on the failure analysis of CPVC (chlorinated polyvinyl chloride) pipes. We stimulated the damage by notch effect and evaluated its properties using models available in the literature, specifically, the linear damage of Miner, the normalized damage and the unified theory. Burst tests allowed us to obtain ultimate pressure and time parameters for the virgin specimens and the residual parameters for the damaged ones. Then, we analyzed the effect of defect on the mechanical behavior of the studied structures; we found that the mechanical properties of the material were lost as defects increased. An observation and analysis of the pressure drop and thereafter the residual ultimate resistance brings out acceleration from it around the critical depth. Then, an evaluation of the static damage of the studied CPVC pipes was made according to model based on the experimental results of the burst tests and on the modification of the unified theory concepts and the static damage. Indeed, we evaluated the static damage of blank and notched tubes using mainly burst pressure parameters.
Collapse
Affiliation(s)
- Fatima Gugouch
- University of Hassan II, ENSEM (National Superior School of Electricity and Mechanics), LCCMMS, Casablanca, Morocco
| | - Aziz Maziri
- Applied Research Team on Composites, Management and Innovation, High National School of Electricity and Mechanics, Hassan II University, Casablanca, Morocco
| | - Mohamed Elghorba
- University of Hassan II, ENSEM (National Superior School of Electricity and Mechanics), LCCMMS, Casablanca, Morocco
| |
Collapse
|
2
|
Wang M, Yang F, Xiang M, Yang F, Wu T. Design of molecular structure for commercial polyethylene100 pipe. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02888-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
3
|
Dlhý P, Poduška J, Berer M, Gosch A, Slávik O, Náhlík L, Hutař P. Crack Propagation Analysis of Compression Loaded Rolling Elements. MATERIALS 2021; 14:ma14102656. [PMID: 34069380 PMCID: PMC8158698 DOI: 10.3390/ma14102656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/10/2021] [Accepted: 05/17/2021] [Indexed: 11/16/2022]
Abstract
The problem of crack propagation from internal defects in thermoplastic cylindrical bearing elements is addressed in this paper. The crack propagation in these elements takes place under mixed-mode conditions—i.e., all three possible loading modes (tensile opening mode I and shear opening modes II and III) of the crack are combined together. Moreover, their mutual relation changes during the rotation of the element. The dependency of the stress intensity factors on the crack length was described by general parametric equations. The model was then modified by adding a void to simulate the presence of a manufacturing defect. It was found that the influence of the void on the stress intensity factor values is quite high, but it fades with crack propagating further from the void. The effect of the friction between the crack faces was find negligible on stress intensity factor values. The results presented in this paper can be directly used for the calculation of bearing elements lifetime without complicated finite element simulations.
Collapse
Affiliation(s)
- Pavol Dlhý
- Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech Republic; (P.D.); (O.S.); (L.N.); (P.H.)
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic
| | - Jan Poduška
- Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech Republic; (P.D.); (O.S.); (L.N.); (P.H.)
- Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech Republic
- Correspondence:
| | - Michael Berer
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria;
| | - Anja Gosch
- Material Science and Testing of Polymers, Montanuniversitaet Leoben, Otto Gloeckel-Straße 2, 8700 Leoben, Austria;
| | - Ondrej Slávik
- Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech Republic; (P.D.); (O.S.); (L.N.); (P.H.)
- Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech Republic
| | - Luboš Náhlík
- Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech Republic; (P.D.); (O.S.); (L.N.); (P.H.)
| | - Pavel Hutař
- Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech Republic; (P.D.); (O.S.); (L.N.); (P.H.)
| |
Collapse
|
4
|
Chen Z, Wang Y, Xiong B, Zhu J. Initiation and growth of cavitation during the fatigue process of pre-oriented polypropylene film: In-situ SAXS study. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122832] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
5
|
Study on the Mechanical Properties of Stay Cable HDPE Sheathing Fatigue in Dynamic Bridge Environments. Polymers (Basel) 2015. [DOI: 10.3390/polym7081470] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
6
|
Morgeneyer TF, Proudhon H, Cloetens P, Ludwig W, Roirand Q, Laiarinandrasana L, Maire E. Nanovoid morphology and distribution in deformed HDPE studied by magnified synchrotron radiation holotomography. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.10.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
7
|
Matsuda S, Ogi K. A stochastic approach for continuous and discontinuous crack growth in polycarbonate under cyclic loading. POLYM ENG SCI 2013. [DOI: 10.1002/pen.23457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
8
|
Microdeformation and Fracture in Bulk Polyolefins. LONG TERM PROPERTIES OF POLYOLEFINS 2012. [DOI: 10.1007/b13520] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
9
|
Shi J, Zheng J, Guo W, Qin Y. Defects classification and failure modes of electrofusion joint for connecting polyethylene pipes. J Appl Polym Sci 2011. [DOI: 10.1002/app.35013] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
10
|
Choi BH, Balika W, Chudnovsky A, Pinter G, Lang RW. The use of crack layer theory to predict the lifetime of the fatigue crack growth of high density polyethylene. POLYM ENG SCI 2009. [DOI: 10.1002/pen.21436] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
11
|
|
12
|
|
13
|
Balika W, Pinter G, Lang RW. Systematic investigations of fatigue crack growth behavior of a PE-HD pipe grade in through-thickness direction. J Appl Polym Sci 2006. [DOI: 10.1002/app.25073] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|