Abstract
The failure in engineering structures has always become a norm for the engineers to encounter. Thus, it is very important to improve the quantification of uncertainty in fatigue analysis. The main objective of this paper is to examine the effect to the uncertainties parameter in numerical calculations for multiple surface crack problems. A finite thickness plate with surface cracks subjected to random loads with constant-amplitude loading is considered in the fatigue crack growth analysis using a newly developed probabilistic S-version finite element model (ProbS-FEM). The virtual crack closure method was used to calculate the stress intensity factor, whilst the Latin hypercube sampling was employed in ProbS-FEM to determine the probabilistic distribution. Specimens with a multiple notch were prepared and analysed in the fatigue tests. The crack grown both in experimental and numerical simulations were verified. The results from the newly developed ProbS-FEM agreed with the experimental findings. The newly developed approach is demonstrated on a complex cracked structure.
| Original language | English |
|---|---|
| Pages (from-to) | 1851-1865 |
| Number of pages | 15 |
| Journal | Journal of the Brazilian Society of Mechanical Sciences and Engineering |
| Volume | 37 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Nov 2015 |
Fingerprint
Keywords
- Crack growth
- Finite element model
- Probabilistic
- Stress intensity factor
- Surface crack
ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Surface crack analysis under cyclic loads using probabilistic S-version finite element model. / Akramin, M. R M; Shaari, M. S.; Mohd Ihsan, Ahmad Kamal Ariffin; Kikuchi, Masanori; Abdullah, Shahrum.
In: Journal of the Brazilian Society of Mechanical Sciences and Engineering, Vol. 37, No. 6, 01.11.2015, p. 1851-1865.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Surface crack analysis under cyclic loads using probabilistic S-version finite element model
AU - Akramin, M. R M
AU - Shaari, M. S.
AU - Mohd Ihsan, Ahmad Kamal Ariffin
AU - Kikuchi, Masanori
AU - Abdullah, Shahrum
PY - 2015/11/1
Y1 - 2015/11/1
N2 - The failure in engineering structures has always become a norm for the engineers to encounter. Thus, it is very important to improve the quantification of uncertainty in fatigue analysis. The main objective of this paper is to examine the effect to the uncertainties parameter in numerical calculations for multiple surface crack problems. A finite thickness plate with surface cracks subjected to random loads with constant-amplitude loading is considered in the fatigue crack growth analysis using a newly developed probabilistic S-version finite element model (ProbS-FEM). The virtual crack closure method was used to calculate the stress intensity factor, whilst the Latin hypercube sampling was employed in ProbS-FEM to determine the probabilistic distribution. Specimens with a multiple notch were prepared and analysed in the fatigue tests. The crack grown both in experimental and numerical simulations were verified. The results from the newly developed ProbS-FEM agreed with the experimental findings. The newly developed approach is demonstrated on a complex cracked structure.
AB - The failure in engineering structures has always become a norm for the engineers to encounter. Thus, it is very important to improve the quantification of uncertainty in fatigue analysis. The main objective of this paper is to examine the effect to the uncertainties parameter in numerical calculations for multiple surface crack problems. A finite thickness plate with surface cracks subjected to random loads with constant-amplitude loading is considered in the fatigue crack growth analysis using a newly developed probabilistic S-version finite element model (ProbS-FEM). The virtual crack closure method was used to calculate the stress intensity factor, whilst the Latin hypercube sampling was employed in ProbS-FEM to determine the probabilistic distribution. Specimens with a multiple notch were prepared and analysed in the fatigue tests. The crack grown both in experimental and numerical simulations were verified. The results from the newly developed ProbS-FEM agreed with the experimental findings. The newly developed approach is demonstrated on a complex cracked structure.
KW - Crack growth
KW - Finite element model
KW - Probabilistic
KW - Stress intensity factor
KW - Surface crack
UR - http://www.scopus.com/inward/record.url?scp=84947568757&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84947568757&partnerID=8YFLogxK
U2 - 10.1007/s40430-015-0416-3
DO - 10.1007/s40430-015-0416-3
M3 - Article
AN - SCOPUS:84947568757
VL - 37
SP - 1851
EP - 1865
JO - Journal of the Brazilian Society of Mechanical Sciences and Engineering
JF - Journal of the Brazilian Society of Mechanical Sciences and Engineering
SN - 1678-5878
IS - 6
ER -