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Related Concept Videos

Plastic Behavior01:21

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A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
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Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
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It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
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Behaviors are actions that an organism engages in—they can be related to finding food, reproducing, defending against threats, and many other possible actions. Behaviors include activities related to the environment around the animal—such as migration—as well as social interactions within a species or population. Many behaviors involve motor output—that is, muscle movements—while others involve less visible actions, such as learning.
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Measuring Light-Switching Behavior Using an Occupancy and Light Data Logger
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Controlling plastic behavior with light.

Jake L Nicholson1, Quentin Michaudel1,2

  • 1Department of Chemistry, Texas A&M University, College Station, TX, USA.

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Summary
This summary is machine-generated.

Light intensity spatially controls thermoplastic properties during three-dimensional (3D) printing. This advancement enables precise material tuning for advanced additive manufacturing applications.

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Additive Manufacturing

Background:

  • Three-dimensional (3D) printing enables complex object fabrication.
  • Controlling material properties during 3D printing is crucial for advanced applications.
  • Thermoplastic materials are widely used in 3D printing but often lack spatial property control.

Purpose of the Study:

  • To investigate the spatial tuning of thermoplastic properties using light intensity.
  • To demonstrate precise control over material characteristics during the 3D printing process.

Main Methods:

  • Utilizing a 3D printing technique where light intensity is a key parameter.
  • Employing thermoplastic materials sensitive to light-induced property changes.
  • Analyzing the resulting material properties at different spatial locations within the printed object.

Main Results:

  • Demonstrated a direct correlation between light intensity and thermoplastic properties.
  • Achieved spatially resolved variations in material characteristics, such as stiffness and melting point.
  • Successfully tuned thermoplastic properties with high spatial precision during 3D printing.

Conclusions:

  • Light intensity is an effective parameter for spatially controlling thermoplastic properties in 3D printing.
  • This method offers a novel approach for creating materials with tailored properties for specific applications.
  • The findings open new avenues for advanced functional material design and fabrication.