Fracture assessment of blunt V-notched 3D-printed ABS: Proposing a new specimen for testing and different criteria for prediction

被引:0
作者
Torabi, A. R. [1 ]
Ghanbari, Amin [2 ]
Choupani, N. [3 ]
Ayatollahi, M. R. [2 ,3 ]
机构
[1] Univ Tehran, Coll Interdisciplinary Sci & Technol, Fracture Res Lab, Tehran, Iran
[2] Iran Univ Sci & Technol, Ctr Excellence Expt Solid Mech & Dynam, Sch Mech Engn, Fatigue & Fracture Res Lab, Tehran 16846, Iran
[3] Gebze Tech Univ, Engn Fac, Dept Mech Engn, TR-41400 Gebze, Kocaeli, Turkiye
关键词
Fracture; Notch; 3D-printing; DEN-DLSP specimen; Virtual isotropic material concept (VIMC); Acrylonitrile butadiene styrene (ABS); TOUGHNESS; RESISTANCE; MODE; PLA;
D O I
10.1016/j.tafmec.2024.104742
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this research, a new specimen, called double-edge notched diagonally loaded square plate (DEN-DLSP), is proposed and tested in order to examine the tensile fracture behavior of blunt V-notched Acrylonitrile Butadiene Styrene (ABS) material additively manufactured by using the fused deposition modeling (FDM) method. This test specimen is actually a modified version of the round-tip V-notched diagonally loaded square plate (RV-DLSP) specimen having two edge round-tip V-notches instead of the internal rhombic slot with blunt V-shaped corners. The DEN-DLSP specimen requires less material for fabrication, and dealing with FDM-made polymeric materials, it can be produced without generating undesired local sites of stress concentration. Five different raster angles in unidirectional orientations, the notch opening angle of 90 (deg.), and three different notch tip radii are examined in this study. It is shown that the virtual isotropic material concept (VIMC) in combination with the point stress (PS), mean stress (MS), and averaged strain energy density (ASED) criteria as well as the extended finite element method (XFEM) coupled with the cohesive zone model (CZM) could be satisfactorily used to estimate the fracture loads of the 3D-printed DEN-DLSP specimens. It is revealed that using DEN-DLSP specimen for the mode I notch fracture toughness testing of 3D-printed ABS material is successful, and it is suggested to be used in similar tests for other additively manufactured polymeric materials as well as various engineering materials.
引用
收藏
页数:14
相关论文
共 38 条
[1]  
Abeykoon C., 2020, INT J LIGHTWEIGHT MA, V3, P284, DOI DOI 10.1016/J.IJLMM.2020.03.003
[2]   A material length scale-based methodology to assess static strength of notched additively manufactured polylactide (PLA) [J].
Ahmed, A. A. ;
Susmel, L. .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2018, 41 (10) :2071-2098
[3]   Additively Manufactured PLA under static loading: strength/cracking behaviour vs. deposition angle [J].
Ahmed, A. A. ;
Susmel, L. .
XXIV ITALIAN GROUP OF FRACTURE CONFERENCE, 2017, 2017, 3 :498-507
[4]   Static assessment of plain/notched polylactide (PLA) 3D-printed with different infill levels: Equivalent homogenised material concept and Theory of Critical Distances [J].
Ahmed, Adnan A. ;
Susmel, Luca .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2019, 42 (04) :883-904
[5]   Interlayer adhesion and fracture resistance of polymers printed through melt extrusion additive manufacturing process [J].
Aliheidari, Nahal ;
Christ, Josef ;
Tripuraneni, Rajasekhar ;
Nadimpalli, Siva ;
Ameli, Amir .
MATERIALS & DESIGN, 2018, 156 :351-361
[6]   Fracture resistance measurement of fused deposition modeling 3D printed polymers [J].
Aliheidari, Nahal ;
Tripuraneni, Rajasekhar ;
Ameli, Amir ;
Nadimpalli, Siva .
POLYMER TESTING, 2017, 60 :94-101
[7]  
Anderson T.L., 2017, Fracture mechanics: fundamentals and applications, Vfourth, DOI 10.1201/9781315370293
[8]   Brittle fracture in rounded-tip V-shaped notches [J].
Ayatollahi, M. R. ;
Torabi, A. R. .
MATERIALS & DESIGN, 2010, 31 (01) :60-67
[9]   The influence of in-plane raster angle on tensile and fracture strengths of 3D-printed PLA specimens [J].
Ayatollahi, Majid R. ;
Nabavi-Kivi, A. ;
Bahrami, Bahador ;
Yahya, M. Yazid ;
Khosravani, Mohammad Reza .
ENGINEERING FRACTURE MECHANICS, 2020, 237
[10]   The effect of in-plane layer orientation on mixed-mode I-II fracture behavior of 3D-printed poly-carbonate specimens [J].
Bahrami, Bahador ;
Ayatollahi, Majid R. ;
Sedighi, Iman ;
Perez, Marco A. ;
Garcia-Granada, Andres A. .
ENGINEERING FRACTURE MECHANICS, 2020, 231