Estimating the Uncertainty of Tensile Strength Measurement for A Photocured Material Produced by Additive Manufacturing

Open access

Abstract

The aim of this study was to estimate the measurement uncertainty for a material produced by additive manufacturing. The material investigated was FullCure 720 photocured resin, which was applied to fabricate tensile specimens with a Connex 350 3D printer based on PolyJet technology. The tensile strength of the specimens established through static tensile testing was used to determine the measurement uncertainty. There is a need for extensive research into the performance of model materials obtained via 3D printing as they have not been studied sufficiently like metal alloys or plastics, the most common structural materials. In this analysis, the measurement uncertainty was estimated using a larger number of samples than usual, i.e., thirty instead of typical ten. The results can be very useful to engineers who design models and finished products using this material. The investigations also show how wide the scatter of results is.

[1] Campbell, I., Bourell, D. and Gibson, I. (2012), Additive manufacturing: rapid prototyping comes of age, Rapid Prototyping Journal, Vol. 18 Issue 4, 255–258.

[2] Puebla, K., Arcaute, K., Quintana, R., Wicker, R.B., (2012), Effects of environmental conditions, aging, and build orientations on the mechanical properties of ASTM type I specimens manufactured via stereolithography, Rapid Prototyping Journal, Vol. 18 Issue 5, 374–388.

[3] ASTM, Standard 638 (2010), Standard test method for tensile properties of plastics.

[4] Chockalingam, K., Jawahar, N., Chandrasekhar, U., (2006), Influence of layer thickness on mechanical properties in stereolithography, Rapid Prototyping Journal, Vol. 12 Issue 2, 106–113.

[5] ISO, Standard 527-1 (2012), Plastics - determination of tensile properties - Part 1: General principles.

[6] ISO, Standard 6892-1 (2009), Metallic materials - Tensile testing - Part 1: Method oftest at room temperature.

[7] Adamczak, S., Bochnia, J., Kundera, Cz. (2012), Stress and strain measurements in static tensile tests, Metrology and Measurement Systems, No. 3, Vol. XIX, 531 -540.

[8] Inspekt Mini (2011), Universal testing machine Inspekt mini 3kN, Hegewald & Peschke MPT GmbH.

[9] LabMaster software (2011), Version 2.5.3.21.

[10] Adamczak S., Makieła W. (2010), Fundamentals of metrology and quality engineering for mechanical engineers, WNT.

[11] Stępień K., Makieła W. (2013), An analysis of deviations of cylindrical surfaces with the use of wavelet transform, Metrology and Measurement Systems, No. 1, Vol. XX, 139–158.

[12] Cedro L., Janecki D. (2011), Determining of Signal Derivatives in Identification Problems -FIR Differential Filters, Acta Montanistica Slovaca, R 16, cz. 1, 47–54.

Metrology and Measurement Systems

The Journal of Committee on Metrology and Scientific Instrumentation of Polish Academy of Sciences

Journal Information


IMPACT FACTOR 2016: 1.598

CiteScore 2016: 1.58

SCImago Journal Rank (SJR) 2016: 0.460
Source Normalized Impact per Paper (SNIP) 2016: 1.228

Metrics

All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 129 129 26
PDF Downloads 54 54 12