Related Experiment Video
Updated: Aug 25, 2025
06:34
Finite Element Modeling for the Simulation of the Quasi-Static Compression of Corrugated Tapered Tubes
Published on: January 6, 2023
1.7K
Numerical Investigations of Perforated CFRP Z-Cross-Section Profiles, under Axial Compression
1Department of Machine Design and Mechatronics, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland.
Materials (Basel, Switzerland)
|October 14, 2022
Summary
Investigating perforated thin-walled composite Z-sections under compression reveals that optimized hole placement can prevent strength loss. These structures maintain stability even after buckling, crucial for aerospace and construction.
Area of Science:
- Structural Engineering
- Materials Science
- Aerospace Engineering
Background:
- Thin-walled elements are vital in aerospace and construction.
- Perforations reduce weight but alter stress distribution and stiffness.
- Understanding buckling behavior of perforated structures is critical.
Purpose of the Study:
- To numerically investigate the buckling and postbuckling behavior of thin-walled composite Z-section profiles with perforations.
- To analyze the influence of cut-out parameters (size, location, shape, number) on structural performance.
- To compare the behavior of perforated profiles with non-perforated ones.
Main Methods:
- Finite Element Method (FEM) analysis using ABAQUS® software.
- Numerical simulation of thin-walled composite Z-sections under compression.
- Evaluation of buckling load, postbuckling equilibrium path, and failure load.
Main Results:
- Perforated Z-section profiles demonstrated stable post-critical behavior.
- Optimized hole arrangement can mitigate the negative impact of perforations on mechanical properties.
- Buckling load and failure load are significantly influenced by cut-out geometry and location.
Conclusions:
- Thin-walled perforated composite Z-sections can maintain stability in the post-buckling range.
- Strategic design of cut-outs is key to preserving structural integrity and preventing performance degradation.
- Numerical analysis provides valuable insights into the complex behavior of these engineered components.
Related Concept Videos
01:15Stress: General Loading Conditions
366
To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
366
01:15Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
317
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.
317
01:21Plastic Deformations of Members with a Single Plane of Symmetry
118
When a structural member undergoes plastic deformation due to bending, it is crucial to understand the position of the neutral axis and the stress distribution. This member, characterized by a single plane of symmetry, exhibits a uniform stress distribution, with negative stress above the neutral axis and positive stress below. Notably, the neutral axis does not align with the centroid of the cross-section. This misalignment is typical in cases where the cross-section is not rectangular or...
118
01:21Deformations in a Transverse Cross Section
299
When a material is subjected to uniaxial stress, it elongates or contracts in the direction of the applied force, and also undergoes changes in the perpendicular directions. This behavior is crucial for understanding how materials behave under stress and is governed by mechanical properties such as Poisson's ratio v, which measures the ratio of transverse strain to axial strain.
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
299
01:16Eccentric Axial Loading in a Plane of Symmetry
266
Eccentric axial loading occurs when an axial load is applied away from the centroidal axis of a structural member. This scenario is common in engineering, where structural elements may not be directly aligned due to various design or functional requirements.
266
01:15Thin-Walled Hollow Shafts
227
In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution...
227