JEBAAL Holding’s Post

#Detecting Wall Thickness in Inaccessible Locations with Short Range Guided Wave Inspection #Inspectioneering

🔧 Understanding the outer and inner diameter of a spring is crucial for perfect spring design and selection! Whether your spring needs to fit inside a tube or wrap around a shaft, getting these measurements right ensures optimal performance and safety. 📏 🛠️ In our latest article, we break down everything you need to know about outer and inner diameters, including how to calculate them and why they matter in various applications like compression, extension, and torsion springs. Learn more https://lnkd.in/eVgFNjMt #SpringDesign #EngineeringTips #CustomSprings #DIYEngineering #PrecisionMatters #SpringCalculator #ManufacturingKnowledge

Basement walls are designed for at-rest pressure when over 10 ft below grade (per IBC 2018 sec 1610). The wall is then analyzed as a propped cantilever wall (fixed at the bottom/foundation, and simply supported at the floor above. The Moment at the fixed end is estimated at (Ho*h)/7.5, where Ho is the resultant total at-rest pressure (Ko*unit wt of soil*height of wall) in the back of the wall, h in the height of wall. I was having some trouble getting to this estimate using the "long way", until I found this VERY HELPFUL video on analysis of propped cantilever wall subject to triangular distributed loads. I hope this helps someone and looking forward to your inputs on the topic. #structuralengineering #foundations #PEexamprep #Basement

OW-7080-60 1.Power:60W                          2.Luminous flux:5400LM                      3.Light source: 12pcs CREE XTE                4.Voltage range:9-32V                 5.Waterproof rate:IP68                       6.PC lens                               7.Material of housing: aluminum alloy            8.LED lifetime:30000 hours               9.Operating temperature:-45℃-+85℃      10.Beam:flood and spot beam optional

Hollow Structural Section (HSS): An effective set of structural members offering torsional rigidity and thereby exerting better control over flexural buckling and lateral torsional buckling (LTB). But HSS connection design and detailing is what often baffles us. AISC Design Guide 24, namely "HSS Connections" is an effective and inclusive guideline, offering theoretical design, coupled with experimental design adequacy. The following is an extract from the above-mentioned guideline, elaborating one of the main failure modes, Limit State of Shear Yielding or Punching Shear failure for branch-to-chord interface (both HSS). The connection stress concentration / distribution and assumption of plastic hinge formation in the "ring model" would help us having better control over this common type of connection failure for HSS. Happy reading and subsequent implementation!

When it comes to supporting loads or attaching parts to poles, beams or walls, there's arguably no better tool than the U-Bolt. Capable of being manufactured from a variety of materials and in a range of sizes, they can support just about anything. https://buff.ly/3KjZIRd #customubolt #ubolt #carbonsteelbolt #bolts

End Moment Reactions For Beams With Both Ends Fixed Under Various Loadings https://lnkd.in/dffZPrt4

𝐑𝐞𝐢𝐧𝐟𝐨𝐫𝐜𝐞𝐦𝐞𝐧𝐭 𝐑𝐞𝐬𝐢𝐬𝐭𝐚𝐧𝐜𝐞 𝐂𝐨𝐧𝐭𝐫𝐢𝐛𝐮𝐭𝐢𝐨𝐧 𝐟𝐨𝐫 𝐃𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐡𝐰/𝐥𝐰 Walls are typically part of the LFRS due to their large in-plane stiffness. In squat walls (hw/lw < 2), the predominant wall failure mode is diagonal shear, much like a beam. The vertical (longitudinal) reinforcement is mostly effective in resisting this type of shear through shear friction. The vertical reinforcement is fully effective for hw/lw of 0.5 or less. As this ratio increases above 0.5, the horizontal (transverse) reinforcement begins to provide a portion of the resistance. Where the height-to-length ratio exceeds 2.5, the horizontal reinforcement provides most of the shear strength and the shear behavior is more like a beam. This change in shear behavior is accounted for in the minimum reinforcement requirement according to the equation. #RekanDaho

Normally #beams stand for horizontal structural members which transmit loads horizontally along their length to the supports where the loads are generally transformed into vertical forces. The objective of beams is to withstand vertical loads, shear forces and bending moments. Depending on the types of supports, the following types of beams are available:- 1. Simply Supported Beam 2. Fixed Beam 3. Cantilever Beam 4. Continuously Supported Beam 1. Simply Supported Beam when the ends of a beam are formed to stand freely on supports beam, it is known as a simple (freely) supported beam. It contains pinned support at one end and roller support at the other end. On the basis of assign load, it sustains shearing and bending. 2. Fixed Beam If a beam is inflexible at both ends in order that the slope at the ends become zero, it is known as fixed beam. It is also called a built-in beam. The fixed ends produce fixing moments there other than the reactions. If perfect end fixing is obtained, fixed beams bear smaller maximum bending moments and contain smaller deflections. 3. Cantilever Beam If a beam is set at one end whereas the other end is free, it is termed as cantilever beam. The beam bears the. load to the support where it is forced against with a moment and shear stress. It produces a negative bending moment to neutralize a positive bending moment formed to a different place. 4. Continuously Supported Beam If in excess of two supports are arranged to the beam, it is described as continuously supported beam.

Propellers are crafted and tailored to fulfill precise operational needs such as velocity, rotations per minute (rpm), durability, vibration, and noise levels for a particular category of vessels. In order to fulfill these needs, propellers must attain a minimum level of efficiency, harness the available shaft power at specified rpm or variable rpms for Controllable Pitch Propellers (CPP), function within designated vibration and noise standards, and endure hydrodynamic pressures and strains across all operational scenarios. Attaining the desired performance necessitates that the propeller's design aligns with the predetermined hydrodynamic outlines. Even minor alterations or flaws in these outlines can significantly impact propeller performance by disrupting the water flow over the blade surfaces, potentially leading to vibration and cavitation issues.