Help with Statics and Strengths of Materials

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Rob is seeking assistance with statics and strength of materials while designing a bucket loader for his garden tractor. He is analyzing forces on the hydraulic ram pin and the solid arm, experiencing confusion with calculations, particularly regarding the use of angles in trigonometry. Forum members emphasize the importance of correctly identifying forces, using free-body diagrams, and ensuring proper equilibrium in calculations. Rob is also working on shear and bending moment diagrams for the arm, aiming to apply combined stress equations for structural integrity. The discussion highlights the complexity of static equilibrium and the necessity for accurate force representation in engineering design.
  • #101
grandnat_6: Generally, check a beam where the moment diagram is maximum, which is often where the shear diagram is zero. And/or check at any cross section(s) of interest. If you have textbooks that explain this, follow the guidance therein.

In general, you can check the axial stress, bending stress, and shear stress at each cross section you want to design.
 
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  • #102
Did some calcuations on beam 1 and beam 2. Found out the shear stress is more than the maximum tension and compression stress.

At this point with beam 1, beam 2, and the uprights. Should anything else be checked like defection, buckling, ect. or is it ok to make production drawings of these?

nvn, for the textbook I have a fourth edition Statics and Strength of Materials by Bassin, Brodsky, and Wolkoff, copy right 1988.

My instructor back then said it's an old book but is the best he has found. I know myself and a lot of other students found it rather hard to follow without instructor guidence. If you have a suggestion for a textbook please let me know the title, author, or ISBN # and I'll will gladly pick it up somewhere.
 
  • #103
grandnat_6: Yes, there are other things to check. At the moment, I have exceeded the amount of time I can currently afford for one thread. Perhaps others may choose to answer.
 
  • #104
alright nvn, Thank you for all the help this far. I've learned a lot!
 
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