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Thanks Dave, SWComposites.

Hi All, for glass there is no yield stress as it is a brittle material. So the failure criteria for glass materials under a certain amount of external pressure will be the compressive strength? Any comments on this please?

Thanks Dave, Greg.

Thanks Dave. Tugboat both are new batteries. It would be nice to have a literature related to this fundamentals.

Hi All, We have a truck with 1 battery, and have installed a second battery for additional components in the truck (both are 24 V). How can I confirm that the auxiliary power system will not cause under voltage of the starter batteries, and how can I calculate based on the consumption...

Thanks Jassco, ctopher and Scott.

Hi All, One of the workshops I visited had a lifting beam and web slings. The lift beam is made from a I-Beam. The web sling has been wrapped around 1 or 2 times as the sling is long. Can you please advise 1. Is wrapping of a web sling permitted around a I-Beam, even if the edges on the beam...

Jboggs, thanks. ctopher, can you explain what do you mean by "the part with the nutsert as an assy part number"? So basically if you have the weldment part+nutsert, then you treat is as an assembly?

Hi All, As per standard practice, a weldment item/part (made up of 2 or 3 different bodies) has a single file/part number. But how do you treat a weldment item/part which has a nutsert installed on it. Because once the nutsert is installed, you can't disassemble it. What are the best...

Hi All, I am working in a company where a weldment item is made up of 2,3 or more parts welded together. As per standard industry practice, this item will have a single part number. But here, they have give all different part numbers to the items welded in the weldment. So they consider this as...

Gents thanks for the answers, but still there is no clarity on the motor torque. BrianE22, I am planning to use a center bush to centralize the gear, and I am aware of it, so working on it.

Hi All, I am working on a mechanism where I need to rotate a load hanging with hoist trolleys on a round/circular I-Beam track. While simple torque calculations can be done by available data, the mechanism is not as simple. The hanging load, trolley roller friction, and load being on the...

Thanks for all the answers. This KE is from a traveling object that will hit the steel circular section, with a energy of KE = 1/2 * m * v^2, which comes out to be around 1.82 kN.m.

Hi All, I have some value of kinetic energy, 1.82 kN.m which I want to apply to a steel circular hollow section member Dia. 140mm x 10mm thickness, 5m length. I want to apply this energy as a force. Is there a way I can apply this? Regards, HD

Thanks all. Some good insights. Regards HD

Hi All, Good day. Will a preloaded bolt only fail in shear or tensile stress, or combination of both? Or can it fail in bending as well? In comparison, a pin can fail in shear, tensile or bending loads, or combination of all three loads. Is there any literature or standard which states...

Hi, AISC has given the section modulus of equal rectangles (as shown for the rectangles on the left). Can someone please advise what is the section modulus of equal rectangles (axis of moments through the center of gravity) for the rectangles shown on right?. Please see attached file. Thanks in...

Hi All, I am modeling a container with 4 legged slings. Criteria is as per DNV 2.7-1. But when I run the analysis, the model is not converging. Please see attached load cases. All the 4 lifting slings has been modeled as tension only members, and spring supports on the 4 bottom corners in the X...

Hi All, Appreciate everybody's comments. I went to the link, which gives a good table of accelrations. http://en.wikipedia.org/wiki/Peak_ground_acceleration The accelerations values range from 0.0017 to more than 1.24. Regards, SO

Hi All, Can someone please advise what is the acceleration values used when designing steel structures using IBC or ASCE codes? 1. What values are commonly used? 2. What are the maximum/worst case values? Thanks in advance. Regards, SubseaOcean