Related Experiment Video
Updated: Apr 27, 2026
06:34
Finite Element Modeling for the Simulation of the Quasi-Static Compression of Corrugated Tapered Tubes
Published on: January 6, 2023
2.8K
Mechanical response of a creased sheet
F Lechenault1, B Thiria2, M Adda-Bedia1
1Laboratoire de Physique Statistique, Ecole Normale Supérieure, UPMC Paris 6, Université Paris Diderot, CNRS, 24 rue Lhomond, 75005 Paris, France.
Physical Review Letters
|July 5, 2014
Summary
This study reveals a key length scale in creased thin sheets, determining mechanical response by balancing panel bending and crease hinging. This finding is crucial for understanding complex origami structures.
Area of Science:
- Materials Science
- Mechanical Engineering
- Physics
Background:
- Thin sheets with creases exhibit complex mechanical behaviors.
- Understanding these behaviors is essential for applications in deployable structures and robotics.
Purpose of the Study:
- To investigate the mechanics of thin sheets with non-interacting parallel creases.
- To identify the governing factors of the mechanical response in such systems.
Main Methods:
- Analysis of a system comprising parallel folds connected by elastic panels.
- Theoretical investigation of bending deformation in panels and intrinsic response of creases.
Main Results:
- The mechanical response is twofold, influenced by panel bending and crease hinging.
- A characteristic length scale, derived from the ratio of bending to hinge energies, dictates the deformation mode.
- This scale determines whether applied loads result in angle opening or panel bending.
Conclusions:
- A fundamental length scale governs the mechanics of creased thin sheets.
- This provides a foundational understanding for advanced origami mechanics and material design.
Related Concept Videos
01:13Cell-matrix's Response to Mechanical Forces
2.7K
In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue.
Anchoring junctions mechanically attach a cell to the...
Anchoring junctions mechanically attach a cell to the...
2.7K
01:21Plastic Behavior
807
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...
807
01:18Mechanical Characteristics of Steel
938
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
938
01:19Members Made of Elastoplastic Material
535
The behavior of elastoplastic materials under bending stresses, particularly in structural members with rectangular cross-sections, is crucial for predicting material responses and understanding failure modes. Initially, when a bending moment is applied, the stress distribution across the section follows Hooke's Law and is linear and elastic. This distribution means the stress increases from the neutral axis to the maximum at the outer fibers, up to the elastic limit.
As the bending moment...
As the bending moment...
535
01:24Stress-Strain Diagram - Ductile Materials
2.5K
The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...
2.5K
01:25Yield Criteria for Ductile Materials under Plane Stress
835
In designing structural elements and machine parts using ductile materials, it is crucial to ensure that these components withstand applied stresses without yielding. Yielding is initially determined through a tensile test, which evaluates the material's response to uniaxial stress. However, tensile stress is insufficient when components face biaxial or plane stress conditions This condition requires advanced criteria to predict failure.
The Maximum Shearing Stress Criterion, also known as...
The Maximum Shearing Stress Criterion, also known as...
835