High Strain Rate Behavior of Stir Cast Hybrid Al-Si Matrix Composites Using Split Hopkinson Pressure Bar

Kumar, Suresh; Malik, Neetu; Cinelli, Patrizia; Sharma, Vipin

doi:10.1007/s12633-023-02680-4

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…The yield strength and flow stress also vary with factors such as the volume fraction and type of reinforcement. Additionally, most composites exhibit different levels of strain rate sensitivity within a certain range of strain rates [49].…”

Section: Strain Rate Hardening and Strain Rate Sensitivitymentioning

confidence: 99%

A Review of Dynamic Mechanical Behavior and the Constitutive Models of Aluminum Matrix Composites

Li,

Luo,

Chao

et al. 2024

Materials

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Aluminum matrix composites (AMMCs) have demonstrated substantial potential in the realm of armor protection due to their favorable properties, including low density, high specific stiffness, and high specific strength. These composites are widely employed as structural components and frequently encounter high strain rate loading conditions, including explosions and penetrations during service. And it is crucial to note that under dynamic conditions, these composites exhibit distinct mechanical properties and failure mechanisms compared to static conditions. Therefore, a thorough investigation into the dynamic mechanical behavior of aluminum matrix composites and precise constitutive equations are imperative to advance their application in armor protection. This review aims to explore the mechanical properties, strengthening the mechanism and deformation damage mechanism of AMMCs under high strain rate. To facilitate a comprehensive understanding, various constitutive equations are explored, including phenomenological constitutive equations, those with physical significance, and those based on artificial neural networks. This article provides a critical review of the reported work in this field, aiming to analyze the main challenges and future development directions of aluminum matrix composites in the field of protection.

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Section: Strain Rate Hardening and Strain Rate Sensitivitymentioning

confidence: 99%

A Review of Dynamic Mechanical Behavior and the Constitutive Models of Aluminum Matrix Composites

Li,

Luo,

Chao

et al. 2024

Materials

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“…The SHPB test technique was initially used to study metallic materials. With the development of material dynamic test technology and the increase in material diversity, the SHPB test technique's research objects have been expanded to brittle materials, soft materials, foam materials, polymer materials, and composite materials, which have been applied in various fields [1][2][3][4][5][6][7][8][9][10]. In addition to the conventional dynamic compression test, the dynamic tensile properties and crack propagation laws of materials can also be studied using the dynamic Brazilian disc split tensile test, which has a different loading mode compared to the former [11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Review of SHPB Dynamic Load Impact Test Characteristics and Energy Analysis Methods

Yang,

Li,

Qiao

2023

Processes

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Since the split-Hopkinson pressure bar (SHPB) test technology was proposed, it has played an important role in the study of dynamic mechanical properties of materials under the impact of dynamic load. It is a major test technology for the study of dynamic mechanical properties of materials. The expansion of the range of materials studied has also posed a challenge to the SHPB test technique, requiring some improvements to the conventional SHPB test apparatus and analysis methods to meet the test conditions and ensure the accuracy of its results. Based on a systematic review of the development of the SHPB test technique and the test principles, the main factors that influence the test’s ability to meet the two basic assumptions at this stage are analyzed, and the ways to handle them are summarized. The stress wave dispersion phenomenon caused by the transverse inertia effect of the pressure bar means that the test no longer satisfies the one-dimensional stress wave assumption, while the pulse-shaping technique effectively reduces the wave dispersion phenomenon and also has the effect of achieving constant strain rate loading and promoting the dynamic stress equilibrium of the specimen. Impedance matching between the pressure bar and specimen effectively solves the problem of the test’s difficulty because the transmitted signal is weak, and the assumption that the stress/strain is uniformly distributed along the length of the specimen is not satisfied when studying low-wave impedance material with the conventional SHPB test device. The appropriate pressure bar material can be selected according to the value of the wave impedance of the test material. According to the wave impedance values of different materials, the corresponding suggestions for the selection of pressure bar materials are given. Moreover, a new pressure bar material (modified gypsum) for materials with very-low-wave impedance is proposed. Finally, for some materials (foamed concrete, aluminum honeycomb, porous titanium, etc.) that cannot meet the two basic assumptions of the test, the Lagrangian analysis method can be combined with SHPB test technology application. Based on the analysis and calculation of the energy conservation equation, the dynamic constitutive relationship of the materials can be obtained without assuming the constitutive relationship of the experimental materials.

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Enhancement of hardness and wear strength of pure Cu and Cu–TiO₂ composites via a friction stir process while maintaining electrical resistivity

Alnaser,

Yunus

2024

Reviews on Advanced Materials Science

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The study aims to enhance the hardness and wear of copper and Cu–TiO2-based composites while maintaining high electrical conductivity through friction stir processing (FSP). It assesses the impact of TiO2 volume fractions and groove widths (GWs) on the wear, hardness, resistivity, and microstructure of FSPed Cu and FSPed Cu–TiO2 surface composite. The samples obtained from the stir zone showed an increase in microhardness of the Cu–TiO2 surface composite due to particle refinement, uniform distribution, and efficient sticking of TiO2 with Cu. Furthermore, the wear rate increased with decreasing TiO2 volume fractions in the composite. The worn surface microstructural analysis indicated a transition from harsh to gentle wear with increasing TiO2 volume fractions and GWs. The average grain size reduced significantly in reinforced stir zones compared to pure Cu, and particle size decreased further with increasing groove size. Hardness increased by 25 and 50% compared to unprocessed Cu, but only a negligible increase in electrical resistivity (2.3% Ωm) after FSP.

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High Strain Rate Behavior of Stir Cast Hybrid Al-Si Matrix Composites Using Split Hopkinson Pressure Bar

Cited by 3 publications

References 31 publications

A Review of Dynamic Mechanical Behavior and the Constitutive Models of Aluminum Matrix Composites

A Review of Dynamic Mechanical Behavior and the Constitutive Models of Aluminum Matrix Composites

Review of SHPB Dynamic Load Impact Test Characteristics and Energy Analysis Methods

Enhancement of hardness and wear strength of pure Cu and Cu–TiO₂ composites via a friction stir process while maintaining electrical resistivity

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High Strain Rate Behavior of Stir Cast Hybrid Al-Si Matrix Composites Using Split Hopkinson Pressure Bar

Cited by 3 publications

References 31 publications

A Review of Dynamic Mechanical Behavior and the Constitutive Models of Aluminum Matrix Composites

A Review of Dynamic Mechanical Behavior and the Constitutive Models of Aluminum Matrix Composites

Review of SHPB Dynamic Load Impact Test Characteristics and Energy Analysis Methods

Enhancement of hardness and wear strength of pure Cu and Cu–TiO2 composites via a friction stir process while maintaining electrical resistivity

Contact Info

Product

Resources

About

Enhancement of hardness and wear strength of pure Cu and Cu–TiO₂ composites via a friction stir process while maintaining electrical resistivity