Related Experiment Video
Updated: Oct 9, 2025
12:33
Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
Published on: February 4, 2013
21.9K
Cumulative geometric frustration in physical assemblies
1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel.
Physical Review. E
|December 24, 2021
Summary
Geometric frustration in physical systems can lead to unique behaviors. This study introduces a framework to understand frustration, revealing how compatibility conditions dictate assembly properties and energy growth.
Area of Science:
- Physics
- Materials Science
- Condensed Matter Physics
Background:
- Geometric frustration occurs when local arrangement preferences conflict with global constraints.
- Frustrated assemblies can exhibit unusual properties like filamentation and morphological variations.
- However, not all geometrically frustrated systems display these phenomena, indicating a need for a deeper theoretical framework.
Purpose of the Study:
- To develop a theoretical framework for directly analyzing geometric frustration in physical assemblies.
- To elucidate the role of compatibility conditions in governing the behavior of frustrated systems.
- To predict the energy growth exponent of small assemblies based on the structure of these conditions.
Main Methods:
- Exploitation of the intrinsic approach to model physical assemblies.
- Analysis of compatibility conditions associated with intrinsic fields.
- Mathematical derivation to predict superextensive energy growth exponents.
Main Results:
- The structure of compatibility conditions directly determines the behavior of small assemblies.
- The framework successfully predicts the superextensive energy growth exponent.
- Demonstrated applicability to various well-known frustrated assemblies.
Conclusions:
- The intrinsic approach provides a robust framework for understanding geometric frustration.
- Compatibility conditions are key determinants of frustrated assembly behavior and energy scaling.
- This work offers a unified perspective on diverse geometrically frustrated systems.
Related Concept Videos
01:30Method of Joints: Problem Solving II
734
Consider a truss structure with frictionless joints fixed to a wall and roller support. If a force of 150 N is applied to joint A, the forces in each member of the truss can be determined using the method of joints.
734
01:30Method of Joints: Problem Solving I
1.4K
The method of joints is a commonly used technique to analyze the forces in structural trusses. The method is based on the principle of equilibrium, which assumes that the truss members are connected by frictionless pins. The forces at each joint can be determined by considering the equilibrium of the forces acting on that joint. Consider a truss structure with two forces of 20 N and 10 N acting at joints C and D, respectively. The method of joints can be used to determine the forces FCB, FDC,...
1.4K
01:29Space Trusses: Problem Solving
663
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. Due to its adaptability and capacity to withstand complex loads, the space truss is widely used in various construction projects.
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
663
01:23Simplification of a Force and Couple System: II
376
In a three-dimensional system, multiple forces can act on an object. These forces can be combined into a single equivalent force, known as the resultant force. Similarly, the moments generated by these forces can be combined into a single equivalent moment, the resultant couple moment. In certain situations, these two entities may not be mutually perpendicular, meaning they do not have a 90-degree angle between them. This unique condition requires a deeper understanding of the interplay between...
376
01:20Plastic Deformation in Circular Shafts
277
When materials are subjected to forces that surpass their yield strength, they undergo a process known as plastic deformation. This results in a permanent alteration or strain in their structure. This concept can be specifically applied to circular shafts, where the deformation leads to a change in its shape. The precise evaluation of this plastic deformation requires understanding the stress distribution within the circular shaft, which is achieved by calculating the maximum shearing stress in...
277
01:15Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
353
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
353