What is ductility?
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Ductility refers to a material's ability to undergo significant plastic deformations before breaking. It is a crucial characteristic in structural design, especially for earthquake-resistant structures, as it allows for energy absorption and increased deformation capacity before failure. Various factors influence ductility, such as the strain-hardening ratio and elongation at maximum tensile force of materials. Ductility is essential in reinforced concrete structures, where it is vital for seismic performance. Codes like ABNT NBR 6118, ACI 318, and EUROCODE 2 emphasize the importance of ductility in design but lack quantitative measures. Ductility can be quantified through parameters like the ductility factor, which assesses a structure's ability to withstand displacement before breaking. Understanding ductility is crucial for predicting material behavior under different stress conditions.
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| Papers (5) | Insight |
|---|---|
| Ductility refers to the ability of cross-sections, particularly in flexure, to deform without fracturing. It is crucial for structural performance under seismic effects, discussed in the paper. | |
| Ductility is a material's ability to deform before breaking. It is crucial for understanding material behavior under stress, typically measured by elongation (A) and necking (Z) in tensile tests. | |
| Ductility is the structure's ability to withstand displacement before breaking. The paper proposes a new design model for reinforced concrete beams in bending, explicitly considering the ductility factor. | |
| Ductility is the ability of a material to undergo significant plastic deformations before collapsing, crucial for earthquake-resistant design of reinforced concrete sections, influenced by reinforcement detailing and material properties. | |
01 Oct 2020 1 Citations | Ductility is a material's ability to deform significantly without breaking. It is crucial for seismic design as it allows structures to absorb energy before failure, enhancing safety during earthquakes. |
Related Questions
What can the Do22 structure be doped with to improve ductility?5 answersDoping the DO22 structure with specific elements can enhance ductility. In Ni-Mo-Nb alloys, the introduction of niobium induces the formation of a DO22 superlattice, maintaining high strength and ductility. Similarly, in Mg2Si intermetallic compounds, Al doping enhances ductility by reducing the electronic exchange effect between Mg and Si atoms, thus improving deformation capability. These findings suggest that doping with niobium in Ni-based alloys and with aluminum in Mg2Si compounds can effectively improve the ductility of materials structured in the DO22 phase.
Effect of irradiation on the ductility of metal?4 answersIrradiation of metals can have a significant effect on their ductility. Exposure to irradiation can increase the yield strength of metals, while reducing their ductility. This increase in yield strength is more pronounced at lower temperatures. Irradiation can also lead to a loss of ductility, resulting in brittle behavior in some metals. However, the effect of irradiation on ductility can vary depending on the specific metal and the conditions of irradiation. For example, in the case of tungsten, irradiation did not result in a significant change in ductility compared to bulk samples. On the other hand, in austenitic stainless steels, irradiation has been observed to decrease fracture toughness and ductility. It has also been found that higher neutron exposures may lead to a reversal in ductility loss for some stainless steels, resulting in anomalously high values of engineering ductility.
How filler incorporated pla composite can increase ductility?3 answersThe ductility of PLA composites can be increased by incorporating fillers. One study used worm-like helical carbon nanotubes (HCNTs) as a filler for PLA composites. The addition of a small amount of KH550-treated HCNTs improved the elongation at break and impact strength of the PLA composite, making it more ductile. The high orientation of PLA molecular chains and crystals contributed to the enhanced tensile ductility. Another study used Kraft lignin (KL) and acetylated Kraft lignin (AKL) as fillers for PLA composites. The addition of low contents of AKL increased the elongation at break, but high contents of both lignins made the material brittle. These findings suggest that the type and concentration of fillers play a crucial role in enhancing the ductility of PLA composites.
What is the definition of agility?4 answersAgility is the ability to think and move quickly and easily, and it is an essential element for leaders of schools and systems post-pandemic. It is a complex skill influenced by physical, technical, and cognitive factors, particularly in invasion sports like football. In sports, agility refers to the ability to change direction quickly and precisely without losing balance and awareness of position. The concept of agility can be interpreted differently, but it is implemented through agile practices, which focus on being responsive to change. Overall, agility involves quick thinking, fast movement, and the ability to change direction effectively, making it crucial for performance improvement in sports and adapting to changing environments.
How is ductility of acrylic adhesive compared to epoxy adhesive?5 answersThe ductility of acrylic adhesive was compared to epoxy adhesive in the provided abstracts. It was found that the ductile acrylic adhesive exhibited high energy-based ductility indices compared to traditional materials. The quasi-static true tensile and compressive strain behaviors of the acrylic adhesive were examined, and it was observed that the yield stress, elastic modulus, and failure strain showed a logarithmic dependency on increasing strain rate. On the other hand, the epoxy adhesive was found to have better tensile strength and mechanical fatigue resistance compared to the acrylic adhesive. The addition of carbon nanotube reinforcement in the epoxy adhesive was also shown to anticipate mechanical improvement. Overall, the abstracts suggest that the ductility of acrylic adhesive is lower compared to epoxy adhesive.
Why are enhanced strength and ductility of titanium alloys beneficial during flow forming?3 answersEnhanced strength and ductility of titanium alloys are beneficial during flow forming because they allow for better deformation and shaping of the material. The combination of high strength and ductility enables the alloy to withstand the forces and stresses involved in the flow forming process without fracturing or failing. The presence of crystalline-amorphous composite structures in TiZr-based alloysand fiber-like structural composites in titanium matrix composites (TMCs)enhances the ductility and strain hardening capability of the alloys, making them more resistant to deformation. The addition of second phase elements, such as borides, in TiAl alloysand zirconium diboride (ZrB2) in TC4 titanium alloy, refines the microstructure and strengthens the material, improving its ability to withstand the forming process. Nitrogen doping in TiZrNbTa high-entropy alloys (HEAs)also enhances the strength and ductility, allowing for better deformation during flow forming. Overall, the enhanced strength and ductility of titanium alloys contribute to their improved formability and performance in flow forming applications.