Study on the Fracture Toughness of 3D Printed Engineering Plastics

2021 ◽  
Author(s):  
Yang Yang ◽  
Ye Liu ◽  
Wenfeng Hao ◽  
Guangping Guo ◽  
Xinwen Cheng
Keyword(s):  
Fracture Toughness ◽  
Engineering Plastics ◽  
3D Printed

ELECTRAFIL G-50/SS/5

Alloy Digest ◽  
1991 ◽  
Vol 40 (1) ◽  
Keyword(s):  
Electrical Conductivity ◽  
Fracture Toughness ◽  
Stainless Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Steel Fibers ◽  
Engineering Plastics ◽  
Shielding Material

Abstract ELECTRAFIL G-50/SS/5 provides good electrical conductivity at a low loading of stainless steel fibers. It is useful as a shielding material and for current carrying parts. This datasheet provides information on physical properties, and tensile properties as well as fracture toughness. Filing Code: Cp-13. Producer or source: AKZO Engineering Plastics.

scholarly journals Fracture Toughness of Hybrid Components with Selective Laser Melting 18Ni300 Steel Parts

2018 ◽  
Vol 8 (10) ◽  
pp. 1879 ◽  
Author(s):  
Luis Santos ◽  
Joel de Jesus ◽  
José Ferreira ◽  
José Costa ◽  
Carlos Capela
Keyword(s):  
Fracture Toughness ◽  
Selective Laser Melting ◽  
Compact Tension ◽  
Powder Materials ◽  
Layer By Layer ◽  
Laser Melting ◽  
Conventional Steel ◽  
Scan Rate ◽  
Aisi H13 ◽  
3D Printed

Selective Laser Melting (SLM) is currently one of the more advanced manufacturing and prototyping processes, allowing the 3D-printing of complex parts through the layer-by-layer deposition of powder materials melted by laser. This work concerns the study of the fracture toughness of maraging AISI 18Ni300 steel implants by SLM built over two different conventional steels, AISI H13 and AISI 420, ranging the scan rate between 200 mm/s and 400 mm/s. The SLM process creates an interface zone between the conventional steel and the laser melted implant in the final form of compact tension (CT) samples, where the hardness is higher than the 3D-printed material but lower than the conventional steel. Both fully 3D-printed series and 3D-printed implants series produced at 200 mm/s of scan rate showed higher fracture toughness than the other series built at 400 mm/s of scan rate due to a lower level of internal defects. An inexpressive variation of fracture toughness was observed between the implanted series with the same parameters. The crack growth path for all samples occurred in the limit of interface/3D-printed material zone and occurred between laser melted layers.

OS1917 Dynamic fracture toughness of engineering plastics PC, PBT and PEEK

2013 ◽  
Vol 2013 (0) ◽  
pp. _OS1917-1_-_OS1917-3_
Author(s):  
Yoshio FUKUDA ◽  
Goro MATSUI ◽  
Ryu ODAWARA ◽  
Yuki ITABAYASHI ◽  
Shigeo AOKI
Keyword(s):  
Fracture Toughness ◽  
Dynamic Fracture ◽  
Dynamic Fracture Toughness ◽  
Engineering Plastics

Effect of Raster Orientation on Fracture Toughness Properties of 3D Printed ABS Materials and Structures

2016 ◽  
Author(s):  
Amit Khatri ◽  
Ashfaq Adnan
Keyword(s):  
Fracture Toughness ◽  
Process Parameters ◽  
Experimental Studies ◽  
Processing Parameters ◽  
Deposition Method ◽  
Layer Height ◽  
Fused Deposition ◽  
3D Printed ◽  
Cracked Structures ◽  
Cracked Specimens

Additive manufacturing is a rapidly growing cutting edge technology. Number of experimental studies have shown that strength of product manufactured by additive Fused Deposition Method (FDM) is influenced by different processing parameters involved during manufacturing. This research paper presents experimental and theoretical investigation of fracture toughness of ABS material fabricated with variation in some of process parameters such as Axis Orientations, Raster Orientation, Infill Percentage, Layer Height and Number of Shells. Experiment was designed to manufacture number of cracked specimens with variation in process parameters, measure their tensile strengths for fracture toughness and compare stress intensity factor (SIF) for all of the specimens. This study helps to understand, how different raster orientations affect the fracture toughness of 3D printed structures and also tells us under which process parameters additive manufactured cracked structures provide better strength.

scholarly journals Guiding and Trapping Cracks With Compliant Inclusions for Enhancing Toughness of Brittle Composite Materials

2020 ◽  
Vol 87 (3) ◽  
Author(s):  
Neal R. Brodnik ◽  
Chun-Jen Hsueh ◽  
Katherine T. Faber ◽  
Blaise Bourdin ◽  
Guruswami Ravichandran ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Elastic Modulus ◽  
Heterogeneous Material ◽  
Effective Elastic Modulus ◽  
Elastic Compliance ◽  
Field Approach ◽  
Numerical Predictions ◽  
The Matrix ◽  
3D Printed ◽  
Square Array

Abstract The problem of toughening heterogeneous materials with a stiff matrix and compliant inclusions is investigated through numerical simulations and experiments. Specifically, the problem of optimizing a combination of effective toughness and effective elastic modulus in the context of a square array of compliant inclusions in a stiff matrix is explored. Crack propagation in the heterogeneous material is simulated using a variational phase-field approach. It is found that the crack can meander between or get attracted to and trapped in the inclusions. Composite specimens with a stiff matrix and compliant circular inclusions were 3D printed, and their fracture toughness was measured using a specially designed loading fixture. The experimental results show agreement with the numerical predictions by demonstrating the attraction and trapping of cracks in the inclusions. This study demonstrates the potential for significant enhancement of toughness through elastic compliance contrast between the matrix and the inclusion without notably compromising the effective elastic modulus of the composite material.

PP-60/SD

Alloy Digest ◽  
1991 ◽  
Vol 40 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Carbon Black ◽  
Physical Properties ◽  
Tensile Properties ◽  
Antistatic Additive ◽  
Engineering Plastics ◽  
Polymer Alloy

Abstract PP-60/SD is a polymer alloy formulated to achieve static dissipative characteristics without reliance on an antistatic additive or carbon black. Static disipative permanence is a key feature of the alloy. PP-60/SD is a molding formulation. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. Filing Code: P-24. Producer or source: Akzo Engineering Plastics.

AKULOY RM M-1914

Alloy Digest ◽  
1991 ◽  
Vol 40 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
Cost Function ◽  
Tensile Properties ◽  
Engineering Plastics ◽  
Function Relationship

Abstract AKULOY RM polyamide alloys provide an excellent cost/function relationship. This datasheet provides information on physical properties, and tensile properties as well as fracture toughness. Filing Code: P-30. Producer or source: Akzo Engineering Plastics.

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