Sustained-load-cracking characteristics of aluminum-lined NGV cylinders Export

@article{bhuyan94, abstract = {The aluminum liners of composite-wrapped natural gas vehicle (NGV) cylinders are manufactured from either AA6351-T6 or AA6061-T6 alloy. This study involved determining whether the two aluminum alloys are susceptible to sustained-load-cracking (SLC). A fitness-for-service evaluation of the AA6351A-T6 lined cylinders, based on fracture mechanics methods, is also discussed. SLC tests were performed using pin-loaded pre-cracked compact tension specimens, machined from the three different cylinder heads. Tests were conducted in two stages using the constant crack mouth opening displacement approach. It was determined that both the newer and the older AA6351A-T6 liner materials were susceptible to SLC. SLC had occurred even when the specimen was loaded at as low as 40\% of the material fracture toughness value (KQ). No SLC features were found with the AA6061-T6 test samples, even with those that had been loaded to 100\% of the material fracture toughness value. Susceptibility to SLC reduces the safe operating life of the 6351 lined hoop-wrapped cylinders from 10700 refuelling cycles to 2100 refuelling cycles.}, author = {Bhuyan, G. S. and Carter, D. H.}, booktitle = {Proceedings of the 4th international conference on aluminum alloys}, citeulike-article-id = {449634}, citeulike-linkout-0 = {http://www.sciencedirect.com/science/article/B6V3N-47YHYTV-G8/2/b9f6cdd80967cdc2ca822007f1497435}, journal = {International Journal of Pressure Vessels and Piping}, keywords = {6061, 6351, bibtex-import, fracture, toughness}, number = {2}, pages = {183--192}, pdf = {bhuyan94.pdf}, posted-at = {2005-12-25 12:44:48}, priority = {2}, title = {Sustained-load-cracking characteristics of aluminum-lined {NGV} cylinders}, url = {http://www.sciencedirect.com/science/article/B6V3N-47YHYTV-G8/2/b9f6cdd80967cdc2ca822007f1497435}, volume = {60}, year = {1994} }

TY - JOUR ID - bhuyan94 L3 - citeulike-article-id:449634 N2 - The aluminum liners of composite-wrapped natural gas vehicle (NGV) cylinders are manufactured from either AA6351-T6 or AA6061-T6 alloy. This study involved determining whether the two aluminum alloys are susceptible to sustained-load-cracking (SLC). A fitness-for-service evaluation of the AA6351A-T6 lined cylinders, based on fracture mechanics methods, is also discussed. SLC tests were performed using pin-loaded pre-cracked compact tension specimens, machined from the three different cylinder heads. Tests were conducted in two stages using the constant crack mouth opening displacement approach. It was determined that both the newer and the older AA6351A-T6 liner materials were susceptible to SLC. SLC had occurred even when the specimen was loaded at as low as 40% of the material fracture toughness value (KQ). No SLC features were found with the AA6061-T6 test samples, even with those that had been loaded to 100% of the material fracture toughness value. Susceptibility to SLC reduces the safe operating life of the 6351 lined hoop-wrapped cylinders from 10700 refuelling cycles to 2100 refuelling cycles. IS - 2 JF - International Journal of Pressure Vessels and Piping EP - 192 TI - Sustained-load-cracking characteristics of aluminum-lined {NGV} cylinders VL - 60 T2 - Proceedings of the 4th international conference on aluminum alloys SP - 183 KW - 6061 KW - 6351 KW - bibtex-import KW - fracture KW - toughness AU - Bhuyan, GS AU - Carter, DH PY - 1994/// UR - http://www.sciencedirect.com/science/article/B6V3N-47YHYTV-G8/2/b9f6cdd80967cdc2ca822007f1497435 ER -