Effect of section thickness on fatigue performance of laser sintered nylon 12

被引：15

作者：

Amel, Hoda ^{[1
]}

Rongong, Jem ^{[1
]}

Mortarzadeh, Hadi ^{[2
]}

Hopkinson, Neil ^{[1
,3
]}

机构：

[1] Fac Engn, Dept Mech Engn, Mappin St, Sheffield, S Yorkshire, England

[2] Univ Warwick, Warwick Mfg Grp, Coventry, W Midlands, England

[3] Xaar Plc, 316 Cambridge Sci Pk,Milton Rd, Cambridge, England

来源：

POLYMER TESTING | 2016年 / 53卷

关键词：

Laser sintering; Polymer; Additive manufacturing; Fatigue; Cyclic loading; MECHANICAL-PROPERTIES; BEHAVIOR; SPECIMENS; PARTS;

D O I：

10.1016/j.polymertesting.2016.05.027

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Laser Sintering offers manufacturers freedom of design, which enables creating parts with complex geometries. However, very little investigation has been made into the effects of geometry on mechanical properties of the parts. In the present study, Laser Sintered Nylon 12 parts with different section thickness are subjected to displacement controlled tension-tension and force-controlled fully reversed fatigue loading to investigate the effect of geometry on their fatigue behavior. Section thickness of the parts is shown to have no significant influence on the fatigue behavior under tension only loading. However, fatigue life of parts under fully reversed loading is shown to increase with section thickness. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：204 / 210

页数：7

共 13 条

[1] Experimental measurement and finite element modelling of the compressive properties of laser sintered Nylon-12 [J].

Ajoku, Uzorna ;

Hopkinson, Neil ;

Caine, Mike .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 428 (1-2) :211-216

[2] Investigating the behavior of laser-sintered Nylon 12 parts subject to dynamic loading [J].

Amel, Hoda ;

Moztarzadeh, Hadi ;

Rongong, Jem ;

Hopkinson, Neil .

JOURNAL OF MATERIALS RESEARCH, 2014, 29 (17) :1852-1858

[3] Influence of surface characteristics on fatigue behaviour of laser sintered plastics [J].

Blattmeier, Monika ;

Witt, Gerd ;

Wortberg, Johannes ;

Eggert, Jan ;

Toepker, Jochen .

RAPID PROTOTYPING JOURNAL, 2012, 18 (02) :161-171

[4] Dependence of mechanical properties of polyamide components on build parameters in the SLS process [J].

Caulfield, B. ;

McHugh, P. E. ;

Lohfeld, S. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2007, 182 (1-3) :477-488

[5] Effects of energy density on morphology and properties of selective laser sintered polycarbonate [J].

Ho, HCH ;

Gibson, I ;

Cheung, WL .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1999, 90 :204-210

[6] Effect of section thickness and build orientation on tensile properties and material characteristics of laser sintered nylon-12 parts [J].

Majewski, Candice ;

Hopkinson, Neil .

RAPID PROTOTYPING JOURNAL, 2011, 17 (03) :176-180

[7]

Pruitt L., 1998, POLYM GUILDF, V39

[8]

Sauer J, 1990, CRAZING POLYM, V2

[9] INFLUENCE OF MOLECULAR-WEIGHT ON FATIGUE BEHAVIOR OF POLYETHYLENE AND POLYSTYRENE [J].

SAUER, JA ;

FODEN, E ;

MORROW, DR .

POLYMER ENGINEERING AND SCIENCE, 1977, 17 (04) :246-250

[10] The effect of process conditions on mechanical properties of laser-sintered nylon [J].

Starr, Thomas L. ;

Gornet, Timothy J. ;

Usher, John S. .

RAPID PROTOTYPING JOURNAL, 2011, 17 (06) :418-423

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