4.7 Article

Mixed mode brittle fracture of stereolithographic 3D-printed parts

Related references

Note: Only part of the references are listed.
Article Multidisciplinary Sciences

Characterization of 3D-printed PLA parts with different raster orientations and printing speeds

Mohammad Reza Khosravani et al.

Summary: This paper discusses the effects of two printing parameters on the mechanical behavior of additively manufactured components. Based on experimental results, the strength and stiffness of the examined specimens are determined, and the dependency of the strength and elastic modulus of 3D-printed parts on the raster orientation is documented.

SCIENTIFIC REPORTS (2022)

Article Polymer Science

Design for 3D Printed Tools: Mechanical Material Properties for Direct Polymer Additive Tooling

Peter Frohn-Soerensen et al.

Summary: In the context of the fourth industrial revolution, traditional manufacturing methods are unable to meet the flexibility demands of mass customization and small series production. Therefore, rapid tooling provided by generative manufacturing has been suggested as a solution. However, a comprehensive characterization approach for additively manufactured polymers is needed to enable the sophisticated layout of rapid tooling, as the mechanical properties of these materials are crucial in high-load processes.

POLYMERS (2022)

Article Materials Science, Multidisciplinary

Tensile, three-point bending and impact strength of 3D printed parts using PLA and recycled PLA filaments: A statistical investigation

Gurcan Atakok et al.

Summary: This study investigates the effects of Fused Deposition Modeling (FDM) production parameters on the strength of 3D printed polylactic acid (PLA) and recycled polylactic acid (Re-PLA) test parts. The results show that layer thickness is the most influential factor and using recycled filament enhances environmental awareness.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T (2022)

Article Engineering, Geological

A comprehensive study on ring shape specimens under compressive and tensile loadings for covering the full range of I plus II fracture modes of gypsum material

Hamid Reza Karimi et al.

Summary: This study investigates the full mixed-mode I/II fracture problem using ring-shape specimens and proposes two test configurations. The fracture parameters were determined numerically and the ability of the specimens was examined experimentally. The results show that the GMTS criterion provides more accurate predictions for the fracture toughness of the tested specimens.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2022)

Article Mechanics

Experimental characterization and mechanical behavior of 3D printed CFRP

Kouider Bendine et al.

Summary: Additive manufacturing technology is considered as the next generation production process, allowing the manufacturing of complex designs and reducing production time. However, the printing technology of reinforced carbon fiber is still under development. This study contributes to enhancing the understanding of the behavior of 3D printed parts based on carbon fiber reinforcement through various tests and analysis.

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS (2022)

Article Green & Sustainable Science & Technology

Large-Scale Automated Additive Construction: Overview, Robotic Solutions, Sustainability, and Future Prospect

Mohammad Reza Khosravani et al.

Summary: This paper presents a comprehensive review of large-scale automated additive construction, focusing on robotic solutions and environmental sustainability. It provides a new classification scheme for available and emerging robotic solutions and explores the vision of environmental sustainability through the perspectives of process, material, and printed large-scale structures/buildings. The current challenges and potential future directions are also highlighted.

SUSTAINABILITY (2022)

Article Nanoscience & Nanotechnology

Effect of printing parameters on the structure and high strain rate deformation behavior of additively manufactured 316L stainless steel

Kenneth Hukpati et al.

Summary: This study investigates the effect of printing parameters on the microstructure and high strain rate deformation behavior of 3D-printed 316L stainless steel alloy. The results show that scan speed and hatch spacing have a significant impact on porosity production, while laser power affects part consolidation. In addition, the combination of printing parameters affects the sub-grain structures and deformation behavior of the samples.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2022)

Proceedings Paper Materials Science, Multidisciplinary

Printing parameters and materials affecting mechanical properties of FDM-3D printed Parts: Perspective and prospects

Manav Doshi et al.

Summary: This article provides a comprehensive review of printing parameters that directly influence the mechanical properties of FDM-produced parts, and offers detailed information on various materials used in the process. The study considers key printing parameters such as layer thickness, infill density and pattern, printing speed, build orientation, and raster angle.

MATERIALS TODAY-PROCEEDINGS (2022)

Article Mechanics

Fracture toughness characteristics of additively manufactured Ti-6Al-4V lattices

Stephen Daynes et al.

Summary: Metallic lattice structures are known for their high specific elastic moduli and strength, but their resistance to fracture is not well understood. In this study, Ti-6Al-4V lattice structures were additively manufactured using selective laser melting, and their fracture toughness characteristics were investigated under Mode-I loading. The results showed that toughness increases with relative density in a power law manner, and a new functional grading optimisation methodology was introduced to increase fracture toughness. After size optimisation, initiation fracture toughness was improved by up to 37%.

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS (2021)

Article Materials Science, Characterization & Testing

Compressive behaviors of 3D printed polypropylene-based composites at low and high strain rates

Kui Wang et al.

Summary: The study found that by controlling the extrusion temperature and layer thickness of 3D-printed PP-based composites, the size and porosity of voids generated during processing can be effectively reduced, thereby improving the mechanical properties of the parts. Under dynamic compression loading, the apparent strength and modulus of the materials were significantly higher.

POLYMER TESTING (2021)

Article Chemistry, Physical

Investigation by Digital Image Correlation of Mixed-Mode I and II Fracture Behavior of Polymeric IASCB Specimens with Additive Manufactured Crack-Like Notch

Tommaso Maria Brugo et al.

Summary: The study investigates the fracture mechanics properties of polyamide specimens manufactured by selective laser sintering technology, utilizing an embedded crack-like notch. The Digital Image Correlation technique was experimentally validated for evaluating the J-integral, and it was found that additive manufacturing could effectively induce cracks in the material.

MATERIALS (2021)

Article Materials Science, Multidisciplinary

Multiaxial fatigue behaviour of maraging steel produced by selective laser melting

R. Branco et al.

Summary: This study investigates the multiaxial fatigue behavior of maraging steel samples produced by selective laser melting, predicting fatigue crack initiation sites and angles while computing fatigue lifetime using a one-parameter damage law. By incorporating cyclic plasticity at the notch-controlled process zone, the study shows a strong correlation between experimental observations and predicted lives under various multiaxial loading scenarios.

MATERIALS & DESIGN (2021)

Article Materials Science, Characterization & Testing

On the use of edge cracked short bend beam specimen for PMMA fracture toughness testing under mixed-mode I/II

S. S. Mousavi et al.

POLYMER TESTING (2020)

Review Engineering, Electrical & Electronic

Progress and challenges in fabrication of wearable sensors for health monitoring

Sara Nasiri et al.

SENSORS AND ACTUATORS A-PHYSICAL (2020)

Article Materials Science, Multidisciplinary

Scale and size effects on the mechanical properties of bioinspired 3D printed two-phase composites

Frances Y. Su et al.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T (2020)

Review Food Science & Technology

3D food printing of as the new way of preparing food: A review

Sylvester Mantihal et al.

INTERNATIONAL JOURNAL OF GASTRONOMY AND FOOD SCIENCE (2020)

Proceedings Paper Engineering, Civil

A new specimen for mixed mode I/II fracture of brittle and quasi-brittle materials

Yifan Li et al.

1ST VIRTUAL EUROPEAN CONFERENCE ON FRACTURE - VECF1 (2020)

Article Materials Science, Characterization & Testing

Structural performance of 3D-printed composites under various loads and environmental conditions

Mohammad Reza Khosravani et al.

POLYMER TESTING (2020)

Proceedings Paper Materials Science, Multidisciplinary

Application of Additive Manufacturing technology to an Aerospace component for better trade-off's

Kanuparti Vishnu Prashant Reddy et al.

MATERIALS TODAY-PROCEEDINGS (2018)

Article Engineering, Mechanical

Calculation of the crack tip parameters in the holed-cracked flattened Brazilian disk (HCFBD) specimens under wide range of mixed mode I/II loading

J. Akbardoost et al.

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES (2017)

Article Engineering, Mechanical

A generalized strain energy density criterion for mixed mode fracture analysis in brittle and quasi-brittle materials

M. R. Ayatollahi et al.

THEORETICAL AND APPLIED FRACTURE MECHANICS (2015)

Article Engineering, Manufacturing

3D printing in aerospace and its long-term sustainability

Sunil C. Joshi et al.

VIRTUAL AND PHYSICAL PROTOTYPING (2015)

Article Automation & Control Systems

Effects of build orientation on tensile strength for stereolithography-manufactured ASTM D-638 type I specimens

Rolando Quintana et al.

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY (2010)

Article Materials Science, Multidisciplinary

Materials analysis of stereolithography resins for use in Rapid Manufacturing

R Hague et al.

JOURNAL OF MATERIALS SCIENCE (2004)

Article Engineering, Mechanical

The role of T-stress in brittle fracture for linear elastic materials under mixed-mode loading

DJ Smith et al.

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES (2001)