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Simulation of Thermomechanical Fatigue of Ductile Cast Iron and Lifetime Calculation
Technical Paper
2015-01-0552
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this paper, both standard and constrained thermomechanical fatigue (TMF) tests were conducted on a high silicon ductile cast iron (DCI). The standard TMF tests were conducted with independent control of mechanical strain, out-of-phase (OP) and in-phase (IP) strain, and temperature in the range from 300 to 800°C. The constrained TMF tests were conducted with various constraint ratios of 100%, 70%, 60% and 50% at the temperature ranges of 160 to 600°C and 160 to 700°C. Based on a material model as calibrated with low-cycle fatigue (LCF) data of DCI, finite element analyses (FEA) of the above TMF tests were carried out with Abaqus. A damage mechanism-based lifetime model was integrated into a C++ API code to post-process the Abaqus output results. Simulation predictions show good agreement with experiments for stress-strain responses and lifetime under different TMF conditions.
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Liu, X., Quan, G., Wu, X., Zhang, Z. et al., "Simulation of Thermomechanical Fatigue of Ductile Cast Iron and Lifetime Calculation," SAE Technical Paper 2015-01-0552, 2015, https://doi.org/10.4271/2015-01-0552.Also In
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