Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity

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BIŽAL, Ana ;KLEMENC, Jernej ;FAJDIGA, Matija .
Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 60, n.6, p. 407-416, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/evaluating-the-statistical-significance-of-a-fatigue-life-reduction-due-to-macro-porosity/>. Date accessed: 30 jun. 2022. 
doi:http://dx.doi.org/10.5545/sv-jme.2013.1453.
Bižal, A., Klemenc, J., & Fajdiga, M.
(2014).
Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity.
Strojniški vestnik - Journal of Mechanical Engineering, 60(6), 407-416.
doi:http://dx.doi.org/10.5545/sv-jme.2013.1453
@article{sv-jmesv-jme.2013.1453,
	author = {Ana  Bižal and Jernej  Klemenc and Matija  Fajdiga},
	title = {Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {60},
	number = {6},
	year = {2014},
	keywords = {AlSi9Cu3 alloy; porosity; fatigue-life; ANOVA; MANOVA; linear regression with dummy variables},
	abstract = {This study focuses on an evaluation of the significance of the fatigue-life reduction due to macro-porosity present in pressure-die-casted aluminium specimens. Three statistical models, i.e., univariate analysis of variance, multivariate analysis of variance and linear regression with dummy variables, were applied to test the statistical significance of the fatigue-life reduction. The three statistical models were applied for the case of experimentally determined fatigue-life data for an AlSi9Cu3 alloy with different levels of macro-porosity. Cylindrical specimens according to ASTM E606 were manufactured by pressure die casting using different manufacturing parameters (die pressure, die temperature) to artificially introduce detectable macro-pores into the specimens. The manufactured specimens were classified into three groups, representing their levels of porosity, which were identified based on x-ray images of the specimens. For each group, strain-controlled fatigue tests were performed at different strain levels. Of these approaches, linear regression with dummy variables proved to be the most appropriate, due to its ability to robustly identify the differences between the fatigue lives for different porosity levels.},
	issn = {0039-2480},	pages = {407-416},	doi = {10.5545/sv-jme.2013.1453},
	url = {https://www.sv-jme.eu/article/evaluating-the-statistical-significance-of-a-fatigue-life-reduction-due-to-macro-porosity/}
}
Bižal, A.,Klemenc, J.,Fajdiga, M.
2014 June 60. Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 60:6
%A Bižal, Ana 
%A Klemenc, Jernej 
%A Fajdiga, Matija 
%D 2014
%T Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity
%B 2014
%9 AlSi9Cu3 alloy; porosity; fatigue-life; ANOVA; MANOVA; linear regression with dummy variables
%! Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity
%K AlSi9Cu3 alloy; porosity; fatigue-life; ANOVA; MANOVA; linear regression with dummy variables
%X This study focuses on an evaluation of the significance of the fatigue-life reduction due to macro-porosity present in pressure-die-casted aluminium specimens. Three statistical models, i.e., univariate analysis of variance, multivariate analysis of variance and linear regression with dummy variables, were applied to test the statistical significance of the fatigue-life reduction. The three statistical models were applied for the case of experimentally determined fatigue-life data for an AlSi9Cu3 alloy with different levels of macro-porosity. Cylindrical specimens according to ASTM E606 were manufactured by pressure die casting using different manufacturing parameters (die pressure, die temperature) to artificially introduce detectable macro-pores into the specimens. The manufactured specimens were classified into three groups, representing their levels of porosity, which were identified based on x-ray images of the specimens. For each group, strain-controlled fatigue tests were performed at different strain levels. Of these approaches, linear regression with dummy variables proved to be the most appropriate, due to its ability to robustly identify the differences between the fatigue lives for different porosity levels.
%U https://www.sv-jme.eu/article/evaluating-the-statistical-significance-of-a-fatigue-life-reduction-due-to-macro-porosity/
%0 Journal Article
%R 10.5545/sv-jme.2013.1453
%& 407
%P 10
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 60
%N 6
%@ 0039-2480
%8 2018-06-28
%7 2018-06-28
Bižal, Ana, Jernej  Klemenc, & Matija  Fajdiga.
"Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity." Strojniški vestnik - Journal of Mechanical Engineering [Online], 60.6 (2014): 407-416. Web.  30 Jun. 2022
TY  - JOUR
AU  - Bižal, Ana 
AU  - Klemenc, Jernej 
AU  - Fajdiga, Matija 
PY  - 2014
TI  - Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2013.1453
KW  - AlSi9Cu3 alloy; porosity; fatigue-life; ANOVA; MANOVA; linear regression with dummy variables
N2  - This study focuses on an evaluation of the significance of the fatigue-life reduction due to macro-porosity present in pressure-die-casted aluminium specimens. Three statistical models, i.e., univariate analysis of variance, multivariate analysis of variance and linear regression with dummy variables, were applied to test the statistical significance of the fatigue-life reduction. The three statistical models were applied for the case of experimentally determined fatigue-life data for an AlSi9Cu3 alloy with different levels of macro-porosity. Cylindrical specimens according to ASTM E606 were manufactured by pressure die casting using different manufacturing parameters (die pressure, die temperature) to artificially introduce detectable macro-pores into the specimens. The manufactured specimens were classified into three groups, representing their levels of porosity, which were identified based on x-ray images of the specimens. For each group, strain-controlled fatigue tests were performed at different strain levels. Of these approaches, linear regression with dummy variables proved to be the most appropriate, due to its ability to robustly identify the differences between the fatigue lives for different porosity levels.
UR  - https://www.sv-jme.eu/article/evaluating-the-statistical-significance-of-a-fatigue-life-reduction-due-to-macro-porosity/
@article{{sv-jme}{sv-jme.2013.1453},
	author = {Bižal, A., Klemenc, J., Fajdiga, M.},
	title = {Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {60},
	number = {6},
	year = {2014},
	doi = {10.5545/sv-jme.2013.1453},
	url = {https://www.sv-jme.eu/article/evaluating-the-statistical-significance-of-a-fatigue-life-reduction-due-to-macro-porosity/}
}
TY  - JOUR
AU  - Bižal, Ana 
AU  - Klemenc, Jernej 
AU  - Fajdiga, Matija 
PY  - 2018/06/28
TI  - Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 60, No 6 (2014): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2013.1453
KW  - AlSi9Cu3 alloy, porosity, fatigue-life, ANOVA, MANOVA, linear regression with dummy variables
N2  - This study focuses on an evaluation of the significance of the fatigue-life reduction due to macro-porosity present in pressure-die-casted aluminium specimens. Three statistical models, i.e., univariate analysis of variance, multivariate analysis of variance and linear regression with dummy variables, were applied to test the statistical significance of the fatigue-life reduction. The three statistical models were applied for the case of experimentally determined fatigue-life data for an AlSi9Cu3 alloy with different levels of macro-porosity. Cylindrical specimens according to ASTM E606 were manufactured by pressure die casting using different manufacturing parameters (die pressure, die temperature) to artificially introduce detectable macro-pores into the specimens. The manufactured specimens were classified into three groups, representing their levels of porosity, which were identified based on x-ray images of the specimens. For each group, strain-controlled fatigue tests were performed at different strain levels. Of these approaches, linear regression with dummy variables proved to be the most appropriate, due to its ability to robustly identify the differences between the fatigue lives for different porosity levels.
UR  - https://www.sv-jme.eu/article/evaluating-the-statistical-significance-of-a-fatigue-life-reduction-due-to-macro-porosity/
Bižal, Ana, Klemenc, Jernej, AND Fajdiga, Matija.
"Evaluating the Statistical Significance of a Fatigue-Life Reduction Due to Macro-Porosity" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 60 Number 6 (28 June 2018)

Authors

Affiliations

  • Hella Saturnus Slovenija d.o.o., Letališka c. 17, 1001 Ljubljana, Slovenia 1
  • University of Ljubljana, Faculty of Mechanical Engineering, Slovenia 2

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 60(2014)6, 407-416
© The Authors, CC-BY 4.0 Int. Change in copyright policy from 2022, Jan 1st.

https://doi.org/10.5545/sv-jme.2013.1453

This study focuses on an evaluation of the significance of the fatigue-life reduction due to macro-porosity present in pressure-die-casted aluminium specimens. Three statistical models, i.e., univariate analysis of variance, multivariate analysis of variance and linear regression with dummy variables, were applied to test the statistical significance of the fatigue-life reduction. The three statistical models were applied for the case of experimentally determined fatigue-life data for an AlSi9Cu3 alloy with different levels of macro-porosity. Cylindrical specimens according to ASTM E606 were manufactured by pressure die casting using different manufacturing parameters (die pressure, die temperature) to artificially introduce detectable macro-pores into the specimens. The manufactured specimens were classified into three groups, representing their levels of porosity, which were identified based on x-ray images of the specimens. For each group, strain-controlled fatigue tests were performed at different strain levels. Of these approaches, linear regression with dummy variables proved to be the most appropriate, due to its ability to robustly identify the differences between the fatigue lives for different porosity levels.

AlSi9Cu3 alloy; porosity; fatigue-life; ANOVA; MANOVA; linear regression with dummy variables