Probabilistic analysis of surface crack in round bars under tension loading
This paper presents the probabilistic analysis of surface crack in round bars subjected to tension stress using Monte Carlo Simulation (MCS). A probabilistic model based on an elastic finite element analysis (FEA) was developed to evaluate the failure probability obtained using a Kestimation method....
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| Format: | Article |
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Trans Tech Publications Inc
2013
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| Online Access: | http://dx.doi.org/10.4028/www.scientific.net/AMM.315.655 http://dx.doi.org/10.4028/www.scientific.net/AMM.315.655 http://eprints.uthm.edu.my/4088/1/al_emran_2.pdf |
| Summary: | This paper presents the probabilistic analysis of surface crack in round bars subjected to
tension stress using Monte Carlo Simulation (MCS). A probabilistic model based on an elastic finite
element analysis (FEA) was developed to evaluate the failure probability obtained using a Kestimation
method. This method is based on the stress intensity factor (SF) where the failure
occurred when the SIF was assumed to exceed the critical SIF. It was found that, the K-estimation
method was adequate to evaluate the failure probability of the bars when compared with the results
obtained using the probabilistic FEA approach. The advantage of K-estimation methods was the
reduction of the computational time and cost significantly. |
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