Thermoplastic pipes are utilized in the industrial fields including water, sewage and gas piping systems and other industrial applications, such as the transport of minerals and slurries. Choosing the PEX-AL-PEX pipe depends upon many criteria. Firstly, it depends on the conditions of use of each and every kind of material. Secondly, it all depends on the expense of the chosen material and finally the mastering in the material’s scenarios of failure.
The very last criteria are possible with the mastering in the material characteristics and also the capability to detect the failure, burst or crack, before its occurrence. The adopted approach needs to be proactive to facilitate the prediction from the failure and assist the maintenance staff to apprehend the piping system’s damage in the proper time. With this paper, we chose HDPE pipes as material for our own study. Then, we leaded a new approach of failure analysis and prediction using new models. These models are obtained using a modified version of the stress controlled unified theory, a static damage model using burst pressures plus a static damage model making use of the time for you to failure. For this reason, we used burst pressures of undamaged HDPE pipe fittings rather than ultimate stresses. Then, we created groove notches with assorted degrees of depth.
The obtained burst pressures from all of these pipes are already regarded as the residual burst pressures used in our damage models. The representation of the obtained data in line with the life fraction gave us an understanding concerning the critical life fraction and so the critical groove depth which may be allowed. This info continues to be confirmed by three damage models. Then, we determined the different stages of injury to help the predictive maintenance to define the safe intervals from the PEX-AL-PEX pipe. Moreover, the three developed models, presented within this paper, represent a simplified strategy to assess the damage based on static tests only, without having done any any dynamic tests. The developed inexpensive approach could be a tool which will help the industrials to possess 18dexkpky anticipative maintenance strategy and respect the security requirements. Also, it can help these people to do quick checks or launch audit mission to the manufacturers’ factories for HDPE pipes’ quality control and conformity check concerning the codes.