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Related Concept Videos

Shearing Stress01:18

Shearing Stress

Shearing stress, denoted by the Greek letter tau (τ), is stress caused by forces acting transversely on an object. These forces create internal ones within the entity in the plane where the external forces are applied. The resultant of these internal forces is the shear in the section.
The average shearing stress can be calculated by dividing the shear by the area of the cross-section.
Shear on the Horizontal Face of a Beam Element01:16

Shear on the Horizontal Face of a Beam Element

To understand shear on the flat side of a prismatic beam element, consider the vertical and horizontal shearing forces, and the normal forces, acting on the element. The element's upper (U) and lower (L) sections, which are divided by the beam's neutral axis, are examined. The equilibrium of these forces is determined by applying the equilibrium equation, which helps identify the horizontal shearing force. This force is directly related to the bending moments and the cross-section's first...
Thin-Walled Hollow Shafts01:15

Thin-Walled Hollow Shafts

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 of...
Boundary Layer Characteristics01:18

Boundary Layer Characteristics

When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...
Shear Diagram01:27

Shear Diagram

In the study of beam mechanics, shear diagrams play a crucial role in understanding the distribution of shear forces along the length of a beam. Consider a beam AB that is supported at both ends and subjected to perpendicular loads.
First, a free-body diagram of the beam is drawn, representing all the external forces and internal reactions acting on the beam. One can calculate the reaction forces at each support by employing the equilibrium equations of force and moment. The vertical component...
Unsymmetric Loading of Thin-Walled Members: Problem Solving01:07

Unsymmetric Loading of Thin-Walled Members: Problem Solving

The shear center of a channel section with uniform thickness, height, and width, is determined by computing the shear force in the member and calculating the moments of inertia of the sections.
To compute the shear forces, find the shear flow at a specific distance from the endpoint using the vertical shear and the moment of inertia values. The total shear force on the flange is calculated by integrating the shear flow from one end of the flange to the other.
Next, calculate the moments of...

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Related Experiment Video

Updated: May 8, 2026

Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes
11:05

Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes

Published on: December 13, 2016

Velocity-dependent shear band formation in blanking processes.

Lisa Winter1, Sven Winter2, Katja Martinitz3

  • 1Institute of Materials Science and Engineering, Materials and Surface Engineering Group, Chemnitz University of Technology, 09107, Chemnitz, Germany. lisa.winter@mb.tu-chemnitz.de.

Scientific Reports
|May 6, 2026
PubMed
Summary

High-speed blanking of steel creates adiabatic shear bands (ASB), improving surface quality. Higher speeds promote ASB formation, reducing surface roughness for advanced manufacturing.

Keywords:
Adiabatic shear band (ASB)Blanking speedDrive conceptHigh-speed blankingLow-alloyed steelShear strain rate

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Last Updated: May 8, 2026

Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes
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Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering
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Published on: February 22, 2018

Area of Science:

  • Materials Science
  • Manufacturing Engineering
  • Tribology

Background:

  • High-speed blanking is crucial for manufacturing high-strength sheet components.
  • Adiabatic shear bands (ASB) form during blanking, influencing surface properties.
  • The evolution of ASBs with process conditions requires further investigation.

Purpose of the Study:

  • To investigate the influence of blanking speed on ASB formation and surface geometry.
  • To analyze the microstructure and hardness of blanked surfaces at varying speeds.
  • To understand ASB evolution under identical macroscopic stress states.

Main Methods:

  • Blanking of press-hardened 22MnB5 steel at punch velocities from 0.12 to 17 m/s.
  • Utilizing mechanical, hydraulic, and electromagnetic drive concepts.
  • Analyzing surface geometry, ASB characteristics, microstructure, and hardness.

Main Results:

  • Blanking velocity significantly impacts ASB length, width, microstructure, and hardness.
  • A fully developed ASB across the sheet thickness was achieved at 17 m/s.
  • High-speed blanking resulted in significantly lower surface roughness compared to conventional methods.

Conclusions:

  • Blanking speed is a critical parameter for controlling ASB formation and surface characteristics.
  • High-speed blanking enables the creation of functional surfaces with reduced roughness.
  • This research provides a basis for optimizing high-speed blanking processes for tailored surface properties.