In this section
@article{Kamaludin:2016:10.1016/j.prostr.2016.06.030,
author = {Kamaludin, MA and Patel, Y and Blackman, BRK and Williams, JG},
doi = {10.1016/j.prostr.2016.06.030},
journal = {Procedia Structural Integrity},
pages = {227--234},
title = {Fracture mechanics testing for environmental stress cracking in thermoplastics},
url = {http://dx.doi.org/10.1016/j.prostr.2016.06.030},
volume = {2},
year = {2016}
}
TY - JOUR
AB - Under the combined influence of an aggressive environment and applied stress, engineering thermoplastics may undergo a phenomenon known as environmental stress cracking (ESC). This can result in adverse effects such as embrittlement and premature failure in service, due to the growth of environmentally-induced cracks to critical sizes, with little to no fluid absorption in the bulk material. Fracture mechanics is proposed as a suitable scheme to study and quantify ESC, with the aim being to obtain characterising data for different polymer-fluid combinations of interest, as well as to develop a reliable fracture mechanics test protocol. In the proposed method, slow crack growth is monitored to assess the effect of a range of applied crack driving forces (K, or alternatively G) on observed crack speeds, as opposed to simply measuring time-to-failure. This paper presents the results of experiments performed on the following materials: linear low density polyethylene (LLDPE) in Igepal solution and high impact polystyrene (HIPS) in sunflower oil. A discussion of the various issues surrounding the data analysis for these long-term tests is also included, as the attainment of consistent and repeatable results is critical for a method to be internationally standardised, which is a goal of the European Structural Integrity Society (ESIS) Technical Committee 4 from whose interest this work is drawn.
AU - Kamaludin,MA
AU - Patel,Y
AU - Blackman,BRK
AU - Williams,JG
DO - 10.1016/j.prostr.2016.06.030
EP - 234
PY - 2016///
SN - 2452-3216
SP - 227
TI - Fracture mechanics testing for environmental stress cracking in thermoplastics
T2 - Procedia Structural Integrity
UR - http://dx.doi.org/10.1016/j.prostr.2016.06.030
UR - http://hdl.handle.net/10044/1/41667
VL - 2
ER -