How Does a Bolt Shear? | Mechanics of Materials 03: Tension, Compression and Shear

How does a bolt shear, and how thick must it be? Learn axial stress, shear stress in single and double shear, bearing stress and Saint-Venant's principle in mechanics of materials (strength of materials) with animations. We solve a two-bar wall bracket step by step (statics, stress, check), see when the uniform-stress assumption holds with Saint-Venant's principle, and analyze bolted and pinned connections: single shear, double shear and bearing stress. Finally we find the critical section of a bar with a pin hole in tension and in compression. 🔑 Key concepts: • Axial (normal) stress • Two-force members • Saint-Venant's principle • Single and double shear • Bearing stress • Critical section at a pin hole ⏱️ Chapters: 00:00 Intro 00:23 Three Conditions for the Formula 00:53 Two Cases: σ and τ 01:30 Two Bars Attached to a Wall 02:04 Statics: Bar Forces 03:14 Stress and Check 04:34 Saint-Venant's Principle 05:46 Single Shear Connection 06:43 Double Shear Connection 07:59 Bearing Stress 09:10 Narrow Sections Beside the Hole 10:17 Summary ━━━━━━━━━━━━━━━━━━━━ ⚙️ Animated Engineering: Don't memorize engineering. See it. Animated lessons in statics, dynamics, mechanics of materials, fluid mechanics and thermodynamics. 🔔 Subscribe so you don't miss the next lesson:    / @animationengineering   📚 Watch every series in order in our playlists. 💬 Questions? Leave a comment and we'll answer. #mechanicsofmaterials #shearstress #engineering #strengthofmaterials