TY - JOUR
T1 - Damage accumulation model for aluminum closed cell foams
AU - Pinto, Hernán
AU - Arwade, Sanjay
PY - 2011
Y1 - 2011
N2 - Although metal foams are a relatively new material, knowledge about their mechanical properties and behavior is very extensive for monotonic loads, tension-tension and compression-compression cyclic loads. However, there are very few reports of the behavior of metal foams under tension-compression reversed loading. In this work, a statistical treatment of the fatigue lifetime is used, and a damage accumulation models for aluminum closed cell foams subjected to a fully reversed cyclic loading is proposed. To this end, a fatigue analysis and a failure criterion for the material are needed; the fatigue models considered is the statistical Weibull model, and the failure criterion is the provided by Ingraham et al. Finally, the models developed are compared with the experimental published data by Ingraham et al. for validation purposes.
AB - Although metal foams are a relatively new material, knowledge about their mechanical properties and behavior is very extensive for monotonic loads, tension-tension and compression-compression cyclic loads. However, there are very few reports of the behavior of metal foams under tension-compression reversed loading. In this work, a statistical treatment of the fatigue lifetime is used, and a damage accumulation models for aluminum closed cell foams subjected to a fully reversed cyclic loading is proposed. To this end, a fatigue analysis and a failure criterion for the material are needed; the fatigue models considered is the statistical Weibull model, and the failure criterion is the provided by Ingraham et al. Finally, the models developed are compared with the experimental published data by Ingraham et al. for validation purposes.
KW - Damage accumulation
KW - Fatigue behavior
KW - Fully reversed cycles
KW - Metal foams
UR - http://www.scopus.com/inward/record.url?scp=80052943351&partnerID=8YFLogxK
U2 - 10.1016/j.proeng.2011.04.326
DO - 10.1016/j.proeng.2011.04.326
M3 - Article
AN - SCOPUS:80052943351
SN - 1877-7058
VL - 10
SP - 1967
EP - 1972
JO - Procedia Engineering
JF - Procedia Engineering
ER -