Constitutive modeling and Computational Simulations of the external pressure induced buckling collapse of High Density Polyethylene (HDPE) liners

摘要：

　　The objective of this work is to evaluate the capability of an advanced constitutive model, namely the Three Network Model (TNM) of simulating the mechanical response of HDPE liners undergoing buckling collapse. In order to determine the input parameters for the model, a series of tensile and compressive uniaxial tests were conducted. Simulations were performed using Finite element modeling (FEM) analysis with the ABAQUS 6.10 package. The complex strain rate, temperature and pressure dependent mechanical response of HDPE was analyzed by modeling the dynamic event as an increasing volume of fluid entering the gap cavity between liner and host pipe, and a mathematical relationship between fluid flow rate and collapse pressure was proposed.

关键词： buckling collapse constitutive modeling HDPE liners Finite Element modeling

作者: Patricia M.Frontini Federico Rueda Juan P.Torres

作者单位: Instituto de Tecnología y Ciencia de Materiales,Universidad Nacional de Mar del Plata,B7608FDQ,Argentina

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-9

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）