Cantilever Beam - Maximum Strain @ Deflection

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SUMMARY

The discussion focuses on calculating the maximum strain on a cantilever beam subjected to a point load. The beam dimensions are 3mm wide, 3.5mm high, and 40mm long, with the load applied 11mm from the wall, resulting in a required deflection of 2.5mm. The material data sheet is referenced, and Roark's "Formulas for Stress and Strain" is suggested as a key resource for accurate calculations. The user seeks assistance in applying these principles to their rapid prototyping project.

PREREQUISITES
  • Understanding of cantilever beam mechanics
  • Familiarity with material properties and stress-strain relationships
  • Knowledge of deflection calculations in structural engineering
  • Access to Roark's "Formulas for Stress and Strain" for reference
NEXT STEPS
  • Calculate maximum strain using the formula from Roark's "Formulas for Stress and Strain"
  • Research the effects of varying point load positions on beam deflection
  • Explore finite element analysis (FEA) tools for simulating beam behavior
  • Learn about material selection criteria for rapid prototyping applications
USEFUL FOR

Engineers, designers, and students involved in structural analysis, particularly those working with cantilever beams and rapid prototyping projects.

mikesankey
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Hello Folks,

I'm after a little help here, I've been asked to calculate the maximum strain a beam is under at a certain deflection, for a part we are planning to get Rapid Prototyped

It is a rectangular beam attached to a wall at one end

I have the material data sheet for the material, the beam is 3mm wide, 3.5mm high.

It is 40mm long, with a point load at 11mm from the wall

the required deflection is 2.5mm at this point

To explain the attached image, the beam is held by the white body, and the key deflects the beam to one side to activate the snap at the end of the beam

Would appreciate any help, I'm regretting doing a BA instead of a BSC in Design when it comes to things like this!.
 

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See Roark: Formulas for Stress and Strain
 

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